From oleksii.bidiuk at gmail.com  Thu Jan  6 15:27:12 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Thu, 6 Jan 2011 15:27:12 +0100
Subject: [Python.NET] PythonNET 2.0 Alpha2 and .NET 4.0
Message-ID: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>

Hi,

I am trying to use Python for .NET under VS2010 and .NET 4.0. I've
downloaded the pythonnet-2.0-alpha2.zip and changed the project settings to
use .NET 4.0 under VS2010 and recompiled everything. The resulting
python.exe can be run, and statements like "import clr" and "from System
import String" work (as the Python standard library calls as well) until I
try to instantiate a class as e.g.

s = String('A')

At this moment the Python for .NET seem to crash in nativecall.cs at
NativeCall.Call_3() at (the only) line

return Impl.Call_3(fp, a1, a2, a3);

with dreaded "Exception of type 'System.ExecutionEngineException' was
thrown.". Trying to instantiate Int32() object results in "Attempted to read
or write protected memory. This is often an indication that other memory is
corrupt."

Suggestions are more than welcome! Thanks in advance!
-- 
oleksii
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From oleksii.bidiuk at gmail.com  Thu Jan  6 15:59:59 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Thu, 6 Jan 2011 15:59:59 +0100
Subject: [Python.NET] Fwd:  PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>
	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>
	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>
Message-ID: <AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>

Hi Alla,

thanks for your prompt repsonse. In Python terms String('A') means
constructor with a string parameter AFAIK. When I use the python.exe build
against CLR 2.0 (from pythonnet-2.0-alpha2-clr2.0_115_py26.zip) it works,
but then it talks against .NET 2.0 while I want to talk to the same 4.0
version as my .NET application.

With the example below using the .NET 2.0 version I get

>>> s = String.__overloads__[Char, Int32]('A', 10)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'String' has no attribute '__overloads__'

Basically it seems that the version of python for .net compiled against .NET
4.0 runtime does not work out of box for me. I wonder if somebody had more
luck with this.

2011/1/6 Alla Gofman <Alla.Gofman at sandisk.com>

 Hi Oleksii,
>
>
>
> I have no experience with importing .net modules into Python.
>
> I work on embedding Python into C#.
>
> There is no such constructor String('A') for String class as you use,
> which gets char.
>
> You can see which constructors exists in:
> http://msdn.microsoft.com/en-us/library/system.string.string.aspx
>
>
>
> Example:
>
> I read in http://pythonnet.sourceforge.net/readme.html
>
> In most cases, Python for .NET can determine the correct constructor to
> call automatically based on the arguments. In some cases, it may be
> necessary to call a particular overloaded constructor, which is supported by
> a special "__overloads__" attribute on a class:
>
>     from System import String, Char, Int32
>
>
>
>     s = String.__overloads__[Char, Int32]('A', 10)
>
>
>
> I hope you succeed,
>
>
>  Alla
>
>
>
> *From:* pythondotnet-bounces+alla.gofman=sandisk.com at python.org [mailto:
> pythondotnet-bounces+alla.gofman <pythondotnet-bounces%2Balla.gofman>=
> sandisk.com at python.org] *On Behalf Of *Oleksii Bidiuk
> *Sent:* Thursday, January 06, 2011 4:27 PM
> *To:* pythondotnet at python.org
> *Subject:* [Python.NET] PythonNET 2.0 Alpha2 and .NET 4.0
>
>
>
> Hi,
>
>
>
> I am trying to use Python for .NET under VS2010 and .NET 4.0. I've
> downloaded the pythonnet-2.0-alpha2.zip and changed the project settings to
> use .NET 4.0 under VS2010 and recompiled everything. The resulting
> python.exe can be run, and statements like "import clr" and "from System
> import String" work (as the Python standard library calls as well) until I
> try to instantiate a class as e.g.
>
>
>
> s = String('A')
>
> At this moment the Python for .NET seem to crash in nativecall.cs at
> NativeCall.Call_3() at (the only) line
>
>
>
> return Impl.Call_3(fp, a1, a2, a3);
>
>
>
> with dreaded "Exception of type 'System.ExecutionEngineException' was
> thrown.". Trying to instantiate Int32() object results in "Attempted to read
> or write protected memory. This is often an indication that other memory is
> corrupt."
>
>
>
> Suggestions are more than welcome! Thanks in advance!
> --
> oleksii
>
> ------------------------------
> PLEASE NOTE: The information contained in this electronic mail message is
> intended only for the use of the designated recipient(s) named above. If the
> reader of this message is not the intended recipient, you are hereby
> notified that you have received this message in error and that any review,
> dissemination, distribution, or copying of this message is strictly
> prohibited. If you have received this communication in error, please notify
> the sender by telephone or e-mail (as shown above) immediately and destroy
> any and all copies of this message in your possession (whether hard copies
> or electronically stored copies).
>
>


-- 
oleksii



-- 
oleksii
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From barton at BCDesignsWell.com  Fri Jan  7 10:02:25 2011
From: barton at BCDesignsWell.com (Barton)
Date: Fri, 07 Jan 2011 01:02:25 -0800
Subject: [Python.NET] Fwd:  PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>
	<AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>
Message-ID: <4D26D6A1.6060701@BCDesignsWell.com>

I've got this working on my private (for the moment) branch.  I could do 
this merge by this weekend if folks will find it useful.
-Barton

On 1/6/2011 6:59 AM, Oleksii Bidiuk wrote:
> Hi Alla,
>
> thanks for your prompt repsonse. In Python terms String('A') means 
> constructor with a string parameter AFAIK. When I use the python.exe 
> build against CLR 2.0 (from pythonnet-2.0-alpha2-clr2.0_115_py26.zip) 
> it works, but then it talks against .NET 2.0 while I want to talk to 
> the same 4.0 version as my .NET application.
>
> With the example below using the .NET 2.0 version I get
>
> >>> s = String.__overloads__[Char, Int32]('A', 10)
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> AttributeError: type object 'String' has no attribute '__overloads__'
>
> Basically it seems that the version of python for .net compiled 
> against .NET 4.0 runtime does not work out of box for me. I wonder if 
> somebody had more luck with this.
>
> 2011/1/6 Alla Gofman <Alla.Gofman at sandisk.com 
> <mailto:Alla.Gofman at sandisk.com>>
>
>     Hi Oleksii,
>
>     I have no experience with importing .net modules into Python.
>
>     I work on embedding Python into C#.
>
>     There is no such constructor String('A')for String class as you
>     use, which gets char.
>
>     You can see which constructors exists in:
>     http://msdn.microsoft.com/en-us/library/system.string.string.aspx
>
>     Example:
>
>     I read in http://pythonnet.sourceforge.net/readme.html
>
>     In most cases, Python for .NET can determine the correct
>     constructor to call automatically based on the arguments. In some
>     cases, it may be necessary to call a particular overloaded
>     constructor, which is supported by a special "__overloads__"
>     attribute on a class:
>
>         from System import String, Char, Int32
>
>         s = String.__overloads__[Char, Int32]('A', 10)
>
>     I hope you succeed,
>
>
>     Alla
>
>     *From:*pythondotnet-bounces+alla.gofman=sandisk.com
>     <http://sandisk.com>@python.org <http://python.org>
>     [mailto:pythondotnet-bounces+alla.gofman
>     <mailto:pythondotnet-bounces%2Balla.gofman>=sandisk.com
>     <http://sandisk.com>@python.org <http://python.org>] *On Behalf Of
>     *Oleksii Bidiuk
>     *Sent:* Thursday, January 06, 2011 4:27 PM
>     *To:* pythondotnet at python.org <mailto:pythondotnet at python.org>
>     *Subject:* [Python.NET] PythonNET 2.0 Alpha2 and .NET 4.0
>
>     Hi,
>
>     I am trying to use Python for .NET under VS2010 and .NET 4.0. I've
>     downloaded the pythonnet-2.0-alpha2.zip and changed the project
>     settings to use .NET 4.0 under VS2010 and recompiled everything.
>     The resulting python.exe can be run, and statements like "import
>     clr" and "from System import String" work (as the Python standard
>     library calls as well) until I try to instantiate a class as e.g.
>
>     s = String('A')
>
>     At this moment the Python for .NET seem to crash in nativecall.cs
>     at NativeCall.Call_3() at (the only) line
>
>     return Impl.Call_3(fp, a1, a2, a3);
>
>     with dreaded "Exception of type 'System.ExecutionEngineException'
>     was thrown.". Trying to instantiate Int32() object results in
>     "Attempted to read or write protected memory. This is often an
>     indication that other memory is corrupt."
>
>     Suggestions are more than welcome! Thanks in advance!
>     -- 
>     oleksii
>
>
>     ------------------------------------------------------------------------
>     PLEASE NOTE: The information contained in this electronic mail
>     message is intended only for the use of the designated
>     recipient(s) named above. If the reader of this message is not the
>     intended recipient, you are hereby notified that you have received
>     this message in error and that any review, dissemination,
>     distribution, or copying of this message is strictly prohibited.
>     If you have received this communication in error, please notify
>     the sender by telephone or e-mail (as shown above) immediately and
>     destroy any and all copies of this message in your possession
>     (whether hard copies or electronically stored copies).
>
>
>
>
> -- 
> oleksii
>
>
>
> -- 
> oleksii
>
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet
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From btribble at ea.com  Sat Jan  8 01:26:22 2011
From: btribble at ea.com (Tribble, Brett)
Date: Fri, 7 Jan 2011 16:26:22 -0800
Subject: [Python.NET] Fwd:  PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <4D26D6A1.6060701@BCDesignsWell.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>
	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>
	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>
	<AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>
	<4D26D6A1.6060701@BCDesignsWell.com>
Message-ID: <DA77CDB3CA264844995C82ADA1FE116B6E83C7EBA2@NA-MAIL-1-2.rws.ad.ea.com>

Merge away!

From: pythondotnet-bounces+btribble=ea.com at python.org [mailto:pythondotnet-bounces+btribble=ea.com at python.org] On Behalf Of Barton
Sent: Friday, January 07, 2011 1:02 AM
To: Oleksii Bidiuk
Cc: pythondotnet at python.org
Subject: Re: [Python.NET] Fwd: PythonNET 2.0 Alpha2 and .NET 4.0

I've got this working on my private (for the moment) branch.  I could do this merge by this weekend if folks will find it useful.
-Barton

On 1/6/2011 6:59 AM, Oleksii Bidiuk wrote:
Hi Alla,

thanks for your prompt repsonse. In Python terms String('A') means constructor with a string parameter AFAIK. When I use the python.exe build against CLR 2.0 (from pythonnet-2.0-alpha2-clr2.0_115_py26.zip) it works, but then it talks against .NET 2.0 while I want to talk to the same 4.0 version as my .NET application.
With the example below using the .NET 2.0 version I get

>>> s = String.__overloads__[Char, Int32]('A', 10)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'String' has no attribute '__overloads__'

Basically it seems that the version of python for .net compiled against .NET 4.0 runtime does not work out of box for me. I wonder if somebody had more luck with this.

2011/1/6 Alla Gofman <Alla.Gofman at sandisk.com<mailto:Alla.Gofman at sandisk.com>>

Hi Oleksii,

I have no experience with importing .net modules into Python.
I work on embedding Python into C#.
There is no such constructor String('A') for String class as you use, which gets char.
You can see which constructors exists in: http://msdn.microsoft.com/en-us/library/system.string.string.aspx

Example:
I read in http://pythonnet.sourceforge.net/readme.html
In most cases, Python for .NET can determine the correct constructor to call automatically based on the arguments. In some cases, it may be necessary to call a particular overloaded constructor, which is supported by a special "__overloads__" attribute on a class:
    from System import String, Char, Int32

    s = String.__overloads__[Char, Int32]('A', 10)

I hope you succeed,

Alla

From: pythondotnet-bounces+alla.gofman=sandisk.com<http://sandisk.com>@python.org<http://python.org> [mailto:pythondotnet-bounces+alla.gofman<mailto:pythondotnet-bounces%2Balla.gofman>=sandisk.com<http://sandisk.com>@python.org<http://python.org>] On Behalf Of Oleksii Bidiuk
Sent: Thursday, January 06, 2011 4:27 PM
To: pythondotnet at python.org<mailto:pythondotnet at python.org>
Subject: [Python.NET] PythonNET 2.0 Alpha2 and .NET 4.0

Hi,

I am trying to use Python for .NET under VS2010 and .NET 4.0. I've downloaded the pythonnet-2.0-alpha2.zip and changed the project settings to use .NET 4.0 under VS2010 and recompiled everything. The resulting python.exe can be run, and statements like "import clr" and "from System import String" work (as the Python standard library calls as well) until I try to instantiate a class as e.g.

s = String('A')
At this moment the Python for .NET seem to crash in nativecall.cs at NativeCall.Call_3() at (the only) line

return Impl.Call_3(fp, a1, a2, a3);

with dreaded "Exception of type 'System.ExecutionEngineException' was thrown.". Trying to instantiate Int32() object results in "Attempted to read or write protected memory. This is often an indication that other memory is corrupt."

Suggestions are more than welcome! Thanks in advance!
--
oleksii

________________________________
PLEASE NOTE: The information contained in this electronic mail message is intended only for the use of the designated recipient(s) named above. If the reader of this message is not the intended recipient, you are hereby notified that you have received this message in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify the sender by telephone or e-mail (as shown above) immediately and destroy any and all copies of this message in your possession (whether hard copies or electronically stored copies).



--
oleksii



--
oleksii






_________________________________________________

Python.NET mailing list - PythonDotNet at python.org<mailto:PythonDotNet at python.org>

http://mail.python.org/mailman/listinfo/pythondotnet
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From oleksii.bidiuk at gmail.com  Sat Jan  8 14:28:07 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Sat, 8 Jan 2011 14:28:07 +0100
Subject: [Python.NET] Fwd: PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <4D26D6A1.6060701@BCDesignsWell.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>
	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>
	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>
	<AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>
	<4D26D6A1.6060701@BCDesignsWell.com>
Message-ID: <AANLkTina8Kej2W_R5Z4OybSYSE+=JfbxbL53TmocHNx6@mail.gmail.com>

Yes please!

2011/1/7 Barton <barton at bcdesignswell.com>

>  I've got this working on my private (for the moment) branch.  I could do
> this merge by this weekend if folks will find it useful.
> -Barton
>
>
> On 1/6/2011 6:59 AM, Oleksii Bidiuk wrote:
>
> Hi Alla,
>
>  thanks for your prompt repsonse. In Python terms String('A') means
> constructor with a string parameter AFAIK. When I use the python.exe build
> against CLR 2.0 (from pythonnet-2.0-alpha2-clr2.0_115_py26.zip) it works,
> but then it talks against .NET 2.0 while I want to talk to the same 4.0
> version as my .NET application.
>
>  With the example below using the .NET 2.0 version I get
>
>   >>> s = String.__overloads__[Char, Int32]('A', 10)
>  Traceback (most recent call last):
>    File "<stdin>", line 1, in <module>
> AttributeError: type object 'String' has no attribute '__overloads__'
>
>  Basically it seems that the version of python for .net compiled against
> .NET 4.0 runtime does not work out of box for me. I wonder if somebody had
> more luck with this.
>
> 2011/1/6 Alla Gofman <Alla.Gofman at sandisk.com>
>
>   Hi Oleksii,
>>
>>
>>
>> I have no experience with importing .net modules into Python.
>>
>> I work on embedding Python into C#.
>>
>> There is no such constructor String('A') for String class as you use,
>> which gets char.
>>
>> You can see which constructors exists in:
>> http://msdn.microsoft.com/en-us/library/system.string.string.aspx
>>
>>
>>
>> Example:
>>
>> I read in http://pythonnet.sourceforge.net/readme.html
>>
>> In most cases, Python for .NET can determine the correct constructor to
>> call automatically based on the arguments. In some cases, it may be
>> necessary to call a particular overloaded constructor, which is supported by
>> a special "__overloads__" attribute on a class:
>>
>>     from System import String, Char, Int32
>>
>>
>>
>>     s = String.__overloads__[Char, Int32]('A', 10)
>>
>>
>>
>> I hope you succeed,
>>
>>
>>  Alla
>>
>>
>>
>> *From:* pythondotnet-bounces+alla.gofman=sandisk.com at python.org [mailto:
>> pythondotnet-bounces+alla.gofman <pythondotnet-bounces%2Balla.gofman>=
>> sandisk.com at python.org] *On Behalf Of *Oleksii Bidiuk
>> *Sent:* Thursday, January 06, 2011 4:27 PM
>> *To:* pythondotnet at python.org
>> *Subject:* [Python.NET] PythonNET 2.0 Alpha2 and .NET 4.0
>>
>>
>>
>> Hi,
>>
>>
>>
>> I am trying to use Python for .NET under VS2010 and .NET 4.0. I've
>> downloaded the pythonnet-2.0-alpha2.zip and changed the project settings to
>> use .NET 4.0 under VS2010 and recompiled everything. The resulting
>> python.exe can be run, and statements like "import clr" and "from System
>> import String" work (as the Python standard library calls as well) until I
>> try to instantiate a class as e.g.
>>
>>
>>
>> s = String('A')
>>
>> At this moment the Python for .NET seem to crash in nativecall.cs at
>> NativeCall.Call_3() at (the only) line
>>
>>
>>
>> return Impl.Call_3(fp, a1, a2, a3);
>>
>>
>>
>> with dreaded "Exception of type 'System.ExecutionEngineException' was
>> thrown.". Trying to instantiate Int32() object results in "Attempted to read
>> or write protected memory. This is often an indication that other memory is
>> corrupt."
>>
>>
>>
>> Suggestions are more than welcome! Thanks in advance!
>> --
>> oleksii
>>
>> ------------------------------
>> PLEASE NOTE: The information contained in this electronic mail message is
>> intended only for the use of the designated recipient(s) named above. If the
>> reader of this message is not the intended recipient, you are hereby
>> notified that you have received this message in error and that any review,
>> dissemination, distribution, or copying of this message is strictly
>> prohibited. If you have received this communication in error, please notify
>> the sender by telephone or e-mail (as shown above) immediately and destroy
>> any and all copies of this message in your possession (whether hard copies
>> or electronically stored copies).
>>
>>
>
>
> --
> oleksii
>
>
>
> --
> oleksii
>
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.orghttp://mail.python.org/mailman/listinfo/pythondotnet
>
>


-- 
oleksii
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From emmanuel.lambert at intec.ugent.be  Mon Jan 10 09:01:56 2011
From: emmanuel.lambert at intec.ugent.be (Emmanuel Lambert)
Date: Mon, 10 Jan 2011 09:01:56 +0100
Subject: [Python.NET] PythonDotNet - IronPyton
In-Reply-To: <mailman.29.1294570802.20368.pythondotnet@python.org>
References: <mailman.29.1294570802.20368.pythondotnet@python.org>
Message-ID: <1294646516.1666.60.camel@emmanuel-desktop>

Dear all,

I was wondering : what is the difference between PythonDotNet and
IronPython? It looks like IronPython is rapidly becoming a maturing
implementation for the .NET platform, with also a plugin for Visual
Studio becoming available : http://ironpython.net/

The distinction between the two implementations, future roadmaps, etc,
is not clear to me. Any comments are welcome...

regards
Emmanuel



From oleksii.bidiuk at gmail.com  Mon Jan 10 09:55:29 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Mon, 10 Jan 2011 09:55:29 +0100
Subject: [Python.NET] PythonDotNet - IronPyton
In-Reply-To: <1294646516.1666.60.camel@emmanuel-desktop>
References: <mailman.29.1294570802.20368.pythondotnet@python.org>
	<1294646516.1666.60.camel@emmanuel-desktop>
Message-ID: <AANLkTimqDa1MEukPgRZNtPesXTJRFAnzL6hXtVmXzxGr@mail.gmail.com>

Hi Emmanuel,

The basic differences are highlighted in several discussions like

http://stackoverflow.com/questions/1168914/ironpython-vs-python-net

<http://stackoverflow.com/questions/1168914/ironpython-vs-python-net>In
short IronPython is a complete managed implementation of Python interpreter
in .NET (developed parallel to the regular Python or CPython), just like
Jython. Python for .NET on the other hand is a .NET wrapper around the
CPython interpreter providing access to the CPython from .NET application
and back. There are differences in implementation (e.g. no GIL in
IronPython) and in the accessibility of the libraries (no access to the C
libraries from IronPython out of box).

I am also interested in any hints to the roadmaps of the both products.
IronPython seem to be more mature, but it is also way more effort than
Python for .NET. So far I have difficulties to choose strategically for
either one as both are lagging behind the solid community of CPython.
Comments are more than welcome!

2011/1/10 Emmanuel Lambert <emmanuel.lambert at intec.ugent.be>

> Dear all,
>
> I was wondering : what is the difference between PythonDotNet and
> IronPython? It looks like IronPython is rapidly becoming a maturing
> implementation for the .NET platform, with also a plugin for Visual
> Studio becoming available : http://ironpython.net/
>
> The distinction between the two implementations, future roadmaps, etc,
> is not clear to me. Any comments are welcome...
>
> regards
> Emmanuel
>
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet
>



-- 
oleksii
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From emmanuel.lambert at intec.ugent.be  Mon Jan 10 13:18:44 2011
From: emmanuel.lambert at intec.ugent.be (Emmanuel Lambert)
Date: Mon, 10 Jan 2011 13:18:44 +0100
Subject: [Python.NET] PythonDotNet - IronPyton
In-Reply-To: <AANLkTimqDa1MEukPgRZNtPesXTJRFAnzL6hXtVmXzxGr@mail.gmail.com>
References: <mailman.29.1294570802.20368.pythondotnet@python.org>
	<1294646516.1666.60.camel@emmanuel-desktop>
	<AANLkTimqDa1MEukPgRZNtPesXTJRFAnzL6hXtVmXzxGr@mail.gmail.com>
Message-ID: <1294661924.1666.532.camel@emmanuel-desktop>

Hi Oleksii Bidiuk,

While access to the native Python libraries is apprently a nice feature
of "Python for .NET", I don't think it is very useful in real-world .NET
centric projects (in a corporate environment for example). 
An implementation like IronPython restricts itself to the use of
native .NET features and thus cannot cause dangerous side-effects that
inflict memory leak for example. With "Python for .NET", that is not the
case.
Therefore, in my opinion, IronPython looks like an implementation that
is potentially useful for real-world projects, while "Python for .NET"
looks more experimental in its nature...

Emmanuel



On Mon, 2011-01-10 at 09:55 +0100, Oleksii Bidiuk wrote:
> Hi Emmanuel,
> 
> 
> The basic differences are highlighted in several discussions like 
> 
> 
> http://stackoverflow.com/questions/1168914/ironpython-vs-python-net
> 
> 
> In short IronPython is a complete managed implementation of Python
> interpreter in .NET (developed parallel to the regular Python or
> CPython), just like Jython. Python for .NET on the other hand is
> a .NET wrapper around the CPython interpreter providing access to the
> CPython from .NET application and back. There are differences in
> implementation (e.g. no GIL in IronPython) and in the accessibility of
> the libraries (no access to the C libraries from IronPython out of
> box). 
> 
> 
> I am also interested in any hints to the roadmaps of the both
> products. IronPython seem to be more mature, but it is also way more
> effort than Python for .NET. So far I have difficulties to choose
> strategically for either one as both are lagging behind the solid
> community of CPython. Comments are more than welcome!
> 
> 2011/1/10 Emmanuel Lambert <emmanuel.lambert at intec.ugent.be>
>         Dear all,
>         
>         I was wondering : what is the difference between PythonDotNet
>         and
>         IronPython? It looks like IronPython is rapidly becoming a
>         maturing
>         implementation for the .NET platform, with also a plugin for
>         Visual
>         Studio becoming available : http://ironpython.net/
>         
>         The distinction between the two implementations, future
>         roadmaps, etc,
>         is not clear to me. Any comments are welcome...
>         
>         regards
>         Emmanuel
>         
>         
>         _________________________________________________
>         Python.NET mailing list - PythonDotNet at python.org
>         http://mail.python.org/mailman/listinfo/pythondotnet 
> 
> 
> 
> -- 
> oleksii
> 



From mtigges at gmail.com  Mon Jan 10 18:11:50 2011
From: mtigges at gmail.com (Mark Tigges)
Date: Mon, 10 Jan 2011 09:11:50 -0800
Subject: [Python.NET] PythonDotNet - IronPyton
In-Reply-To: <1294661924.1666.532.camel@emmanuel-desktop>
References: <mailman.29.1294570802.20368.pythondotnet@python.org>
	<1294646516.1666.60.camel@emmanuel-desktop>
	<AANLkTimqDa1MEukPgRZNtPesXTJRFAnzL6hXtVmXzxGr@mail.gmail.com>
	<1294661924.1666.532.camel@emmanuel-desktop>
Message-ID: <AANLkTin6F87nov1_mTXdt3ct5i4C8tyzndKYknK83Xm8@mail.gmail.com>

On Mon, Jan 10, 2011 at 4:18 AM, Emmanuel Lambert
<emmanuel.lambert at intec.ugent.be> wrote:
> Hi Oleksii Bidiuk,
>
> While access to the native Python libraries is apprently a nice feature
> of "Python for .NET", I don't think it is very useful in real-world .NET
> centric projects (in a corporate environment for example).
> An implementation like IronPython restricts itself to the use of
> native .NET features and thus cannot cause dangerous side-effects that
> inflict memory leak for example. With "Python for .NET", that is not the
> case.
> Therefore, in my opinion, IronPython looks like an implementation that
> is potentially useful for real-world projects, while "Python for .NET"
> looks more experimental in its nature...
>
> Emmanuel
>

Emmanual,

You're very mistaken.  In our "corporate environment" (a large game
studio), we use both.  IronPython is used where we want to extend a
.net environment with python scripting capabilities.  PythonDotNet is
used when we want to use our .net assemblies from another program
which has cpython embedded.  PythonDotNet allows us to extend Maya &
MotionBuilder by leveraging all the .net code we write for our tools.

Your opinion is yours, but trust me, while PythonDotNet is a little
rough around the edges it is hugely beneficial to us and others.

We use a cpython distribution augmented with PythonDotNet as our
standard python for distribution to client machines.  The only place
we use IronPython is embedded in our tools.  The start up time for
IronPython (about .5 secs) the last time I checked pretty much makes
it useless.

Mark.

>
>
> On Mon, 2011-01-10 at 09:55 +0100, Oleksii Bidiuk wrote:
>> Hi Emmanuel,
>>
>>
>> The basic differences are highlighted in several discussions like
>>
>>
>> http://stackoverflow.com/questions/1168914/ironpython-vs-python-net
>>
>>
>> In short IronPython is a complete managed implementation of Python
>> interpreter in .NET (developed parallel to the regular Python or
>> CPython), just like Jython. Python for .NET on the other hand is
>> a .NET wrapper around the CPython interpreter providing access to the
>> CPython from .NET application and back. There are differences in
>> implementation (e.g. no GIL in IronPython) and in the accessibility of
>> the libraries (no access to the C libraries from IronPython out of
>> box).
>>
>>
>> I am also interested in any hints to the roadmaps of the both
>> products. IronPython seem to be more mature, but it is also way more
>> effort than Python for .NET. So far I have difficulties to choose
>> strategically for either one as both are lagging behind the solid
>> community of CPython. Comments are more than welcome!
>>
>> 2011/1/10 Emmanuel Lambert <emmanuel.lambert at intec.ugent.be>
>> ? ? ? ? Dear all,
>>
>> ? ? ? ? I was wondering : what is the difference between PythonDotNet
>> ? ? ? ? and
>> ? ? ? ? IronPython? It looks like IronPython is rapidly becoming a
>> ? ? ? ? maturing
>> ? ? ? ? implementation for the .NET platform, with also a plugin for
>> ? ? ? ? Visual
>> ? ? ? ? Studio becoming available : http://ironpython.net/
>>
>> ? ? ? ? The distinction between the two implementations, future
>> ? ? ? ? roadmaps, etc,
>> ? ? ? ? is not clear to me. Any comments are welcome...
>>
>> ? ? ? ? regards
>> ? ? ? ? Emmanuel
>>
>>
>> ? ? ? ? _________________________________________________
>> ? ? ? ? Python.NET mailing list - PythonDotNet at python.org
>> ? ? ? ? http://mail.python.org/mailman/listinfo/pythondotnet
>>
>>
>>
>> --
>> oleksii
>>
>
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet
>

From btribble at ea.com  Mon Jan 10 19:42:03 2011
From: btribble at ea.com (Tribble, Brett)
Date: Mon, 10 Jan 2011 10:42:03 -0800
Subject: [Python.NET] PythonDotNet - IronPyton
In-Reply-To: <AANLkTin6F87nov1_mTXdt3ct5i4C8tyzndKYknK83Xm8@mail.gmail.com>
References: <mailman.29.1294570802.20368.pythondotnet@python.org>
	<1294646516.1666.60.camel@emmanuel-desktop>
	<AANLkTimqDa1MEukPgRZNtPesXTJRFAnzL6hXtVmXzxGr@mail.gmail.com>
	<1294661924.1666.532.camel@emmanuel-desktop>
	<AANLkTin6F87nov1_mTXdt3ct5i4C8tyzndKYknK83Xm8@mail.gmail.com>
Message-ID: <DA77CDB3CA264844995C82ADA1FE116B6E83C7ECD3@NA-MAIL-1-2.rws.ad.ea.com>

There are also logistical and political considerations. Some environments are tied to cpython, and switching to IronPython is impossible (such as the python environment included with Autodesk Maya). Also, many engineers have religious leanings, and would never tie their environment to .NET or other MicroSoft technologies. Adding .NET functionality "on the side" is usually an easier sell.



-----Original Message-----
From: pythondotnet-bounces+btribble=ea.com at python.org [mailto:pythondotnet-bounces+btribble=ea.com at python.org] On Behalf Of Mark Tigges
Sent: Monday, January 10, 2011 9:12 AM
To: emmanuel.lambert at intec.ugent.be
Cc: pythondotnet at python.org
Subject: Re: [Python.NET] PythonDotNet - IronPyton

On Mon, Jan 10, 2011 at 4:18 AM, Emmanuel Lambert
<emmanuel.lambert at intec.ugent.be> wrote:
> Hi Oleksii Bidiuk,
>
> While access to the native Python libraries is apprently a nice feature
> of "Python for .NET", I don't think it is very useful in real-world .NET
> centric projects (in a corporate environment for example).
> An implementation like IronPython restricts itself to the use of
> native .NET features and thus cannot cause dangerous side-effects that
> inflict memory leak for example. With "Python for .NET", that is not the
> case.
> Therefore, in my opinion, IronPython looks like an implementation that
> is potentially useful for real-world projects, while "Python for .NET"
> looks more experimental in its nature...
>
> Emmanuel
>

Emmanual,

You're very mistaken.  In our "corporate environment" (a large game
studio), we use both.  IronPython is used where we want to extend a
.net environment with python scripting capabilities.  PythonDotNet is
used when we want to use our .net assemblies from another program
which has cpython embedded.  PythonDotNet allows us to extend Maya &
MotionBuilder by leveraging all the .net code we write for our tools.

Your opinion is yours, but trust me, while PythonDotNet is a little
rough around the edges it is hugely beneficial to us and others.

We use a cpython distribution augmented with PythonDotNet as our
standard python for distribution to client machines.  The only place
we use IronPython is embedded in our tools.  The start up time for
IronPython (about .5 secs) the last time I checked pretty much makes
it useless.

Mark.

>
>
> On Mon, 2011-01-10 at 09:55 +0100, Oleksii Bidiuk wrote:
>> Hi Emmanuel,
>>
>>
>> The basic differences are highlighted in several discussions like
>>
>>
>> http://stackoverflow.com/questions/1168914/ironpython-vs-python-net
>>
>>
>> In short IronPython is a complete managed implementation of Python
>> interpreter in .NET (developed parallel to the regular Python or
>> CPython), just like Jython. Python for .NET on the other hand is
>> a .NET wrapper around the CPython interpreter providing access to the
>> CPython from .NET application and back. There are differences in
>> implementation (e.g. no GIL in IronPython) and in the accessibility of
>> the libraries (no access to the C libraries from IronPython out of
>> box).
>>
>>
>> I am also interested in any hints to the roadmaps of the both
>> products. IronPython seem to be more mature, but it is also way more
>> effort than Python for .NET. So far I have difficulties to choose
>> strategically for either one as both are lagging behind the solid
>> community of CPython. Comments are more than welcome!
>>
>> 2011/1/10 Emmanuel Lambert <emmanuel.lambert at intec.ugent.be>
>> ? ? ? ? Dear all,
>>
>> ? ? ? ? I was wondering : what is the difference between PythonDotNet
>> ? ? ? ? and
>> ? ? ? ? IronPython? It looks like IronPython is rapidly becoming a
>> ? ? ? ? maturing
>> ? ? ? ? implementation for the .NET platform, with also a plugin for
>> ? ? ? ? Visual
>> ? ? ? ? Studio becoming available : http://ironpython.net/
>>
>> ? ? ? ? The distinction between the two implementations, future
>> ? ? ? ? roadmaps, etc,
>> ? ? ? ? is not clear to me. Any comments are welcome...
>>
>> ? ? ? ? regards
>> ? ? ? ? Emmanuel
>>
>>
>> ? ? ? ? _________________________________________________
>> ? ? ? ? Python.NET mailing list - PythonDotNet at python.org
>> ? ? ? ? http://mail.python.org/mailman/listinfo/pythondotnet
>>
>>
>>
>> --
>> oleksii
>>
>
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet
>
_________________________________________________
Python.NET mailing list - PythonDotNet at python.org
http://mail.python.org/mailman/listinfo/pythondotnet


From laszlo.sebo at primefocusworld.com  Mon Jan 10 19:48:31 2011
From: laszlo.sebo at primefocusworld.com (Laszlo Sebo)
Date: Mon, 10 Jan 2011 10:48:31 -0800
Subject: [Python.NET] PythonDotNet - IronPyton
In-Reply-To: <1294661924.1666.532.camel@emmanuel-desktop>
References: <mailman.29.1294570802.20368.pythondotnet@python.org>	<1294646516.1666.60.camel@emmanuel-desktop>	<AANLkTimqDa1MEukPgRZNtPesXTJRFAnzL6hXtVmXzxGr@mail.gmail.com>
	<1294661924.1666.532.camel@emmanuel-desktop>
Message-ID: <4D2B547F.6030405@primefocusworld.com>

Hi Emmanuel,



Python.Net lets you use .net assemblies from within any cpython 
environment. You can't do that via ironpython.
So you can integrate common .net libraries with applications that have 
their own python interpreters. We use this quite heavily integrating 
.net with maya, nuke and a lot of standalone python tools.

So i would say, ironpython is used best when your host environment is 
.net, and python.net is used best if the host environment is python.


cheers,
laszlo



On 10/01/2011 4:18 AM, Emmanuel Lambert wrote:
> Hi Oleksii Bidiuk,
>
> While access to the native Python libraries is apprently a nice feature
> of "Python for .NET", I don't think it is very useful in real-world .NET
> centric projects (in a corporate environment for example).
> An implementation like IronPython restricts itself to the use of
> native .NET features and thus cannot cause dangerous side-effects that
> inflict memory leak for example. With "Python for .NET", that is not the
> case.
> Therefore, in my opinion, IronPython looks like an implementation that
> is potentially useful for real-world projects, while "Python for .NET"
> looks more experimental in its nature...
>
> Emmanuel
>


From oleksii.bidiuk at gmail.com  Mon Jan 10 21:00:16 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Mon, 10 Jan 2011 21:00:16 +0100
Subject: [Python.NET] PythonDotNet - IronPyton
In-Reply-To: <AANLkTin6F87nov1_mTXdt3ct5i4C8tyzndKYknK83Xm8@mail.gmail.com>
References: <mailman.29.1294570802.20368.pythondotnet@python.org>
	<1294646516.1666.60.camel@emmanuel-desktop>
	<AANLkTimqDa1MEukPgRZNtPesXTJRFAnzL6hXtVmXzxGr@mail.gmail.com>
	<1294661924.1666.532.camel@emmanuel-desktop>
	<AANLkTin6F87nov1_mTXdt3ct5i4C8tyzndKYknK83Xm8@mail.gmail.com>
Message-ID: <AANLkTinaDP2-R0eSHCRpCvvSKYvJNBXfE9MG5ynnOnvA@mail.gmail.com>

Hi Emmanuel et al,

I wouldn't jump to conclusions that fast. There are situations when you want
to use wide variety of C libraries that can be called from CPython but not
available directly from IronPython and in the same time trigger application
logic written in .NET. An alternative to this is IronCLAD in combination
with IronPython, but there are differences that may make you use one or
another.

Memory management is just one thing that may be in fact better done in
CPython and not turned over to IronPython. CPython works with reference
counting, so you know when there are no references your object is free'd,
while in IronPython you are at a mercy of Garbage Collector. It is not
difficult to cause 'memory leaks' in .NET by accidentally holding a
reference to something or forgetting to dispose an object holding a
reference to a large (unmanaged) memory block. What I understood from people
doing a lot of data processing with CPython and NumPy/SciPy this combination
works great as heavy duty processing and things like creation of
intermediate buffers, etc done efficiently and *predictable* with the
underlying C libraries (and sometimes Fortran), while Python serves as a
glue holding things together.

Unfortunatley there is no solution that has it all, therefore personally I
am still looking for a good combination of accessing .NET and usage of the
existing Python libraries. I also think both Python for .NET and IronPython
have to pass a certain tipping point to be future proof if you have to make
a strategic choice for long term. Other opinions on this subject are highly
appreciated!

2011/1/10 Mark Tigges <mtigges at gmail.com>

> On Mon, Jan 10, 2011 at 4:18 AM, Emmanuel Lambert
> <emmanuel.lambert at intec.ugent.be> wrote:
> > Hi Oleksii Bidiuk,
> >
> > While access to the native Python libraries is apprently a nice feature
> > of "Python for .NET", I don't think it is very useful in real-world .NET
> > centric projects (in a corporate environment for example).
> > An implementation like IronPython restricts itself to the use of
> > native .NET features and thus cannot cause dangerous side-effects that
> > inflict memory leak for example. With "Python for .NET", that is not the
> > case.
> > Therefore, in my opinion, IronPython looks like an implementation that
> > is potentially useful for real-world projects, while "Python for .NET"
> > looks more experimental in its nature...
> >
> > Emmanuel
> >
>
> Emmanual,
>
> You're very mistaken.  In our "corporate environment" (a large game
> studio), we use both.  IronPython is used where we want to extend a
> .net environment with python scripting capabilities.  PythonDotNet is
> used when we want to use our .net assemblies from another program
> which has cpython embedded.  PythonDotNet allows us to extend Maya &
> MotionBuilder by leveraging all the .net code we write for our tools.
>
> Your opinion is yours, but trust me, while PythonDotNet is a little
> rough around the edges it is hugely beneficial to us and others.
>
> We use a cpython distribution augmented with PythonDotNet as our
> standard python for distribution to client machines.  The only place
> we use IronPython is embedded in our tools.  The start up time for
> IronPython (about .5 secs) the last time I checked pretty much makes
> it useless.
>
> Mark.
>
> >
> >
> > On Mon, 2011-01-10 at 09:55 +0100, Oleksii Bidiuk wrote:
> >> Hi Emmanuel,
> >>
> >>
> >> The basic differences are highlighted in several discussions like
> >>
> >>
> >> http://stackoverflow.com/questions/1168914/ironpython-vs-python-net
> >>
> >>
> >> In short IronPython is a complete managed implementation of Python
> >> interpreter in .NET (developed parallel to the regular Python or
> >> CPython), just like Jython. Python for .NET on the other hand is
> >> a .NET wrapper around the CPython interpreter providing access to the
> >> CPython from .NET application and back. There are differences in
> >> implementation (e.g. no GIL in IronPython) and in the accessibility of
> >> the libraries (no access to the C libraries from IronPython out of
> >> box).
> >>
> >>
> >> I am also interested in any hints to the roadmaps of the both
> >> products. IronPython seem to be more mature, but it is also way more
> >> effort than Python for .NET. So far I have difficulties to choose
> >> strategically for either one as both are lagging behind the solid
> >> community of CPython. Comments are more than welcome!
> >>
> >> 2011/1/10 Emmanuel Lambert <emmanuel.lambert at intec.ugent.be>
> >>         Dear all,
> >>
> >>         I was wondering : what is the difference between PythonDotNet
> >>         and
> >>         IronPython? It looks like IronPython is rapidly becoming a
> >>         maturing
> >>         implementation for the .NET platform, with also a plugin for
> >>         Visual
> >>         Studio becoming available : http://ironpython.net/
> >>
> >>         The distinction between the two implementations, future
> >>         roadmaps, etc,
> >>         is not clear to me. Any comments are welcome...
> >>
> >>         regards
> >>         Emmanuel
> >>
> >>
> >>         _________________________________________________
> >>         Python.NET mailing list - PythonDotNet at python.org
> >>         http://mail.python.org/mailman/listinfo/pythondotnet
> >>
> >>
> >>
> >> --
> >> oleksii
> >>
> >
> >
> > _________________________________________________
> > Python.NET mailing list - PythonDotNet at python.org
> > http://mail.python.org/mailman/listinfo/pythondotnet
> >
>



-- 
oleksii
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From oleksii.bidiuk at gmail.com  Tue Jan 11 15:17:24 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Tue, 11 Jan 2011 15:17:24 +0100
Subject: [Python.NET] Fwd: PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <4D26D6A1.6060701@BCDesignsWell.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>
	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>
	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>
	<AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>
	<4D26D6A1.6060701@BCDesignsWell.com>
Message-ID: <AANLkTimH_2LkQX9HpQdkYoV-C4oULCGSBOnsJh00OLnw@mail.gmail.com>

Hi Barton,

do you still have any plans to work on the merge? I am curious what the
changes are (how much, what impact do they have) and whether there something
can be done to help you with this.

Thanks in advance!

2011/1/7 Barton <barton at bcdesignswell.com>

>  I've got this working on my private (for the moment) branch.  I could do
> this merge by this weekend if folks will find it useful.
> -Barton
>
>
> On 1/6/2011 6:59 AM, Oleksii Bidiuk wrote:
>
> Hi Alla,
>
>  thanks for your prompt repsonse. In Python terms String('A') means
> constructor with a string parameter AFAIK. When I use the python.exe build
> against CLR 2.0 (from pythonnet-2.0-alpha2-clr2.0_115_py26.zip) it works,
> but then it talks against .NET 2.0 while I want to talk to the same 4.0
> version as my .NET application.
>
>  With the example below using the .NET 2.0 version I get
>
>   >>> s = String.__overloads__[Char, Int32]('A', 10)
>  Traceback (most recent call last):
>    File "<stdin>", line 1, in <module>
> AttributeError: type object 'String' has no attribute '__overloads__'
>
>  Basically it seems that the version of python for .net compiled against
> .NET 4.0 runtime does not work out of box for me. I wonder if somebody had
> more luck with this.
>
> 2011/1/6 Alla Gofman <Alla.Gofman at sandisk.com>
>
>   Hi Oleksii,
>>
>>
>>
>> I have no experience with importing .net modules into Python.
>>
>> I work on embedding Python into C#.
>>
>> There is no such constructor String('A') for String class as you use,
>> which gets char.
>>
>> You can see which constructors exists in:
>> http://msdn.microsoft.com/en-us/library/system.string.string.aspx
>>
>>
>>
>> Example:
>>
>> I read in http://pythonnet.sourceforge.net/readme.html
>>
>> In most cases, Python for .NET can determine the correct constructor to
>> call automatically based on the arguments. In some cases, it may be
>> necessary to call a particular overloaded constructor, which is supported by
>> a special "__overloads__" attribute on a class:
>>
>>     from System import String, Char, Int32
>>
>>
>>
>>     s = String.__overloads__[Char, Int32]('A', 10)
>>
>>
>>
>> I hope you succeed,
>>
>>
>>  Alla
>>
>>
>>
>> *From:* pythondotnet-bounces+alla.gofman=sandisk.com at python.org [mailto:
>> pythondotnet-bounces+alla.gofman <pythondotnet-bounces%2Balla.gofman>=
>> sandisk.com at python.org] *On Behalf Of *Oleksii Bidiuk
>> *Sent:* Thursday, January 06, 2011 4:27 PM
>> *To:* pythondotnet at python.org
>> *Subject:* [Python.NET] PythonNET 2.0 Alpha2 and .NET 4.0
>>
>>
>>
>> Hi,
>>
>>
>>
>> I am trying to use Python for .NET under VS2010 and .NET 4.0. I've
>> downloaded the pythonnet-2.0-alpha2.zip and changed the project settings to
>> use .NET 4.0 under VS2010 and recompiled everything. The resulting
>> python.exe can be run, and statements like "import clr" and "from System
>> import String" work (as the Python standard library calls as well) until I
>> try to instantiate a class as e.g.
>>
>>
>>
>> s = String('A')
>>
>> At this moment the Python for .NET seem to crash in nativecall.cs at
>> NativeCall.Call_3() at (the only) line
>>
>>
>>
>> return Impl.Call_3(fp, a1, a2, a3);
>>
>>
>>
>> with dreaded "Exception of type 'System.ExecutionEngineException' was
>> thrown.". Trying to instantiate Int32() object results in "Attempted to read
>> or write protected memory. This is often an indication that other memory is
>> corrupt."
>>
>>
>>
>> Suggestions are more than welcome! Thanks in advance!
>> --
>> oleksii
>>
>> ------------------------------
>> PLEASE NOTE: The information contained in this electronic mail message is
>> intended only for the use of the designated recipient(s) named above. If the
>> reader of this message is not the intended recipient, you are hereby
>> notified that you have received this message in error and that any review,
>> dissemination, distribution, or copying of this message is strictly
>> prohibited. If you have received this communication in error, please notify
>> the sender by telephone or e-mail (as shown above) immediately and destroy
>> any and all copies of this message in your possession (whether hard copies
>> or electronically stored copies).
>>
>>
>
>
> --
> oleksii
>
>
>
> --
> oleksii
>
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.orghttp://mail.python.org/mailman/listinfo/pythondotnet
>
>


-- 
oleksii
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From Emmanuel.Lambert at UGent.be  Mon Jan 10 22:03:19 2011
From: Emmanuel.Lambert at UGent.be (Emmanuel.Lambert at UGent.be)
Date: Mon, 10 Jan 2011 22:03:19 +0100
Subject: [Python.NET] PythonDotNet - IronPyton
In-Reply-To: <AANLkTin6F87nov1_mTXdt3ct5i4C8tyzndKYknK83Xm8@mail.gmail.com>
References: <mailman.29.1294570802.20368.pythondotnet@python.org>
	<1294646516.1666.60.camel@emmanuel-desktop>
	<AANLkTimqDa1MEukPgRZNtPesXTJRFAnzL6hXtVmXzxGr@mail.gmail.com>
	<1294661924.1666.532.camel@emmanuel-desktop>
	<AANLkTin6F87nov1_mTXdt3ct5i4C8tyzndKYknK83Xm8@mail.gmail.com>
Message-ID: <20110110220319.268622tpw16rgrvb@webmail.ugent.be>

Hello Mark and others,

thank you for the clarification. Very interesting, I hadn't though of  
these two distinct use cases, i.e. :
-on the one hand embedding Python scripting in .NET applications
-on the other hand calling .NET assemblies from applications that  
otherwise run outside of the .NET scope.

My background with .NET is more into monolytic business applications  
that don't have embedded scripting. It might be worthwhile to upgrade  
the "Python for .NET" website and clarify these different use cases.

Both technologies now seem to have a clear use case and rationale.

good evening.
Emmanuel



Quoting "Mark Tigges" <mtigges at gmail.com>:

> On Mon, Jan 10, 2011 at 4:18 AM, Emmanuel Lambert
> <emmanuel.lambert at intec.ugent.be> wrote:
>> Hi Oleksii Bidiuk,
>>
>> While access to the native Python libraries is apprently a nice feature
>> of "Python for .NET", I don't think it is very useful in real-world .NET
>> centric projects (in a corporate environment for example).
>> An implementation like IronPython restricts itself to the use of
>> native .NET features and thus cannot cause dangerous side-effects that
>> inflict memory leak for example. With "Python for .NET", that is not the
>> case.
>> Therefore, in my opinion, IronPython looks like an implementation that
>> is potentially useful for real-world projects, while "Python for .NET"
>> looks more experimental in its nature...
>>
>> Emmanuel
>>
>
> Emmanual,
>
> You're very mistaken.  In our "corporate environment" (a large game
> studio), we use both.  IronPython is used where we want to extend a
> .net environment with python scripting capabilities.  PythonDotNet is
> used when we want to use our .net assemblies from another program
> which has cpython embedded.  PythonDotNet allows us to extend Maya &
> MotionBuilder by leveraging all the .net code we write for our tools.
>
> Your opinion is yours, but trust me, while PythonDotNet is a little
> rough around the edges it is hugely beneficial to us and others.
>
> We use a cpython distribution augmented with PythonDotNet as our
> standard python for distribution to client machines.  The only place
> we use IronPython is embedded in our tools.  The start up time for
> IronPython (about .5 secs) the last time I checked pretty much makes
> it useless.
>
> Mark.
>
>>
>>
>> On Mon, 2011-01-10 at 09:55 +0100, Oleksii Bidiuk wrote:
>>> Hi Emmanuel,
>>>
>>>
>>> The basic differences are highlighted in several discussions like
>>>
>>>
>>> http://stackoverflow.com/questions/1168914/ironpython-vs-python-net
>>>
>>>
>>> In short IronPython is a complete managed implementation of Python
>>> interpreter in .NET (developed parallel to the regular Python or
>>> CPython), just like Jython. Python for .NET on the other hand is
>>> a .NET wrapper around the CPython interpreter providing access to the
>>> CPython from .NET application and back. There are differences in
>>> implementation (e.g. no GIL in IronPython) and in the accessibility of
>>> the libraries (no access to the C libraries from IronPython out of
>>> box).
>>>
>>>
>>> I am also interested in any hints to the roadmaps of the both
>>> products. IronPython seem to be more mature, but it is also way more
>>> effort than Python for .NET. So far I have difficulties to choose
>>> strategically for either one as both are lagging behind the solid
>>> community of CPython. Comments are more than welcome!
>>>
>>> 2011/1/10 Emmanuel Lambert <emmanuel.lambert at intec.ugent.be>
>>> ? ? ? ? Dear all,
>>>
>>> ? ? ? ? I was wondering : what is the difference between PythonDotNet
>>> ? ? ? ? and
>>> ? ? ? ? IronPython? It looks like IronPython is rapidly becoming a
>>> ? ? ? ? maturing
>>> ? ? ? ? implementation for the .NET platform, with also a plugin for
>>> ? ? ? ? Visual
>>> ? ? ? ? Studio becoming available : http://ironpython.net/
>>>
>>> ? ? ? ? The distinction between the two implementations, future
>>> ? ? ? ? roadmaps, etc,
>>> ? ? ? ? is not clear to me. Any comments are welcome...
>>>
>>> ? ? ? ? regards
>>> ? ? ? ? Emmanuel
>>>
>>>
>>> ? ? ? ? _________________________________________________
>>> ? ? ? ? Python.NET mailing list - PythonDotNet at python.org
>>> ? ? ? ? http://mail.python.org/mailman/listinfo/pythondotnet
>>>
>>>
>>>
>>> --
>>> oleksii
>>>
>>
>>
>> _________________________________________________
>> Python.NET mailing list - PythonDotNet at python.org
>> http://mail.python.org/mailman/listinfo/pythondotnet
>>
>




From barton at BCDesignsWell.com  Sun Jan 16 21:32:10 2011
From: barton at BCDesignsWell.com (Barton)
Date: Sun, 16 Jan 2011 12:32:10 -0800
Subject: [Python.NET] Fwd: PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <AANLkTimH_2LkQX9HpQdkYoV-C4oULCGSBOnsJh00OLnw@mail.gmail.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>	<AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>	<4D26D6A1.6060701@BCDesignsWell.com>
	<AANLkTimH_2LkQX9HpQdkYoV-C4oULCGSBOnsJh00OLnw@mail.gmail.com>
Message-ID: <4D3355CA.4090202@BCDesignsWell.com>

This has been pushed to the trunk @ version 122 on the 9th of January, 2011.
See the Tracker/Patches for details.

On 1/11/2011 6:17 AM, Oleksii Bidiuk wrote:
> Hi Barton,
>
> do you still have any plans to work on the merge? I am curious what 
> the changes are (how much, what impact do they have) and whether there 
> something can be done to help you with this.
>
> Thanks in advance!
>
> 2011/1/7 Barton <barton at bcdesignswell.com 
> <mailto:barton at bcdesignswell.com>>
>
>     I've got this working on my private (for the moment) branch.  I
>     could do this merge by this weekend if folks will find it useful.
>     -Barton
>
>
>     On 1/6/2011 6:59 AM, Oleksii Bidiuk wrote:
>>     Hi Alla,
>>
>>     thanks for your prompt repsonse. In Python terms String('A')
>>     means constructor with a string parameter AFAIK. When I use the
>>     python.exe build against CLR 2.0
>>     (from pythonnet-2.0-alpha2-clr2.0_115_py26.zip) it works, but
>>     then it talks against .NET 2.0 while I want to talk to the same
>>     4.0 version as my .NET application.
>>
>>     With the example below using the .NET 2.0 version I get
>>
>>     >>> s = String.__overloads__[Char, Int32]('A', 10)
>>     Traceback (most recent call last):
>>       File "<stdin>", line 1, in <module>
>>     AttributeError: type object 'String' has no attribute '__overloads__'
>>
>>     Basically it seems that the version of python for .net compiled
>>     against .NET 4.0 runtime does not work out of box for me. I
>>     wonder if somebody had more luck with this.
>>
>>     2011/1/6 Alla Gofman <Alla.Gofman at sandisk.com
>>     <mailto:Alla.Gofman at sandisk.com>>
>>
>>         Hi Oleksii,
>>
>>         I have no experience with importing .net modules into Python.
>>
>>         I work on embedding Python into C#.
>>
>>         There is no such constructor String('A')for String class as
>>         you use, which gets char.
>>
>>         You can see which constructors exists in:
>>         http://msdn.microsoft.com/en-us/library/system.string.string.aspx
>>
>>         Example:
>>
>>         I read in http://pythonnet.sourceforge.net/readme.html
>>
>>         In most cases, Python for .NET can determine the correct
>>         constructor to call automatically based on the arguments. In
>>         some cases, it may be necessary to call a particular
>>         overloaded constructor, which is supported by a special
>>         "__overloads__" attribute on a class:
>>
>>             from System import String, Char, Int32
>>
>>             s = String.__overloads__[Char, Int32]('A', 10)
>>
>>         I hope you succeed,
>>
>>
>>         Alla
>>
>
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From oleksii.bidiuk at gmail.com  Mon Jan 17 15:15:34 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Mon, 17 Jan 2011 15:15:34 +0100
Subject: [Python.NET] Fwd: PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <4D3355CA.4090202@BCDesignsWell.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>
	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>
	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>
	<AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>
	<4D26D6A1.6060701@BCDesignsWell.com>
	<AANLkTimH_2LkQX9HpQdkYoV-C4oULCGSBOnsJh00OLnw@mail.gmail.com>
	<4D3355CA.4090202@BCDesignsWell.com>
Message-ID: <AANLkTi=YRaM0ZNVzge-1GSR6W=cfr9rx1=oC8dxQqhHV@mail.gmail.com>

Hi Barton,

thanks for the update! I've got the latest version, but the changes to the
classmanager.cs do not seem to compile

// Implement Overloads on the class object
ConstructorBinding ctors = new ConstructorBinding(type, tp, co.binder);
// ExtensionType types are untracked, so don't Incref() them.
// XXX deprecate __overloads__ soon...
Runtime.PyDict_SetItemString(dict, "__overloads__", ctors.pyHandle);
Runtime.PyDict_SetItemString(dict, "Overloads", ctors.pyHandle);

as the new class is called 'ConstructorBinder' (instead of
ConstructorBinding) and it does not have a matching constructor. I am trying
to figure out the details, but I assume you will have to push new version
anyway.

Further I assume this only fixes the proper constructor overloading. I am
still interested in the .NET 4.0 and VS2010 support. Can you shed some light
on that? What changes do you expect for proper .NET 4.0 support? I see the
clrmodule.il and the buildclrmodule.bat refering to 2.0 runtime. Is it
enough to change these two?

2011/1/16 Barton <barton at bcdesignswell.com>

>  This has been pushed to the trunk @ version 122 on the 9th of January,
> 2011.
> See the Tracker/Patches for details.
>
>
> On 1/11/2011 6:17 AM, Oleksii Bidiuk wrote:
>
> Hi Barton,
>
>  do you still have any plans to work on the merge? I am curious what the
> changes are (how much, what impact do they have) and whether there something
> can be done to help you with this.
>
>  Thanks in advance!
>
>  2011/1/7 Barton <barton at bcdesignswell.com>
>
>>  I've got this working on my private (for the moment) branch.  I could do
>> this merge by this weekend if folks will find it useful.
>> -Barton
>>
>>
-- 
oleksii
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From oleksii.bidiuk at gmail.com  Mon Jan 17 17:06:16 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Mon, 17 Jan 2011 17:06:16 +0100
Subject: [Python.NET] Python.NET and VS2001/.NET 4.0
Message-ID: <AANLkTi=aN=CwvFxYgUmHoARUvByiZXQS-NF95SJbc7pm@mail.gmail.com>

Hi All,

I hope this will help some people like me searching for an answer. Several
steps were mentioned by other people as well, but I haven't seen a
step-by-step guide. It is not my intention to duplicate other posts in that
sense, but rather have all-in-one post.

Here is how I've got VS2010 and .NET 4.0 working with the revision 119 of
the Python.NET having Python 2.6 installed. Note that the latest trunk
(revision 122) gave me some problems, so I have basically reverted changes
to match 119 for the time being.

1. Get the sources (tarball from sourceforge or directly from SVN)
2. Open the pythonnet.sln with VS2010 and convert to 2010 format (will
happen automagically)
3. Change the target framework to 4. Follow the following step for EACH
project
    3.1. Right-click on the project name and select "Properties"
    3.2. Select the "Application" tab on the left (if not selected yet)
    3.3. Change the "Target framework" to ".NET Framework 4"
4. Open the clrmodule.il and change the lines with the version number in the
following piece of code

.assembly extern mscorlib { .publickeytoken = (B7 7A 5C 56 19 34 E0 89 )
.ver 2:0:0:0 }

to have

.ver 4:0:0:0

5. Open the buildclrmodule.bat and change the

%windir%\Microsoft.NET\Framework\v2.0.50727\ilasm /nologo /quiet /dll
%ILASM_EXTRA_ARGS% /include=%INCLUDE_PATH% /output=%OUTPUT_PATH%
%INPUT_PATH%

to

%windir%\Microsoft.NET\Framework\v4.0.30319\ilasm /nologo /quiet /dll
%ILASM_EXTRA_ARGS% /include=%INCLUDE_PATH% /output=%OUTPUT_PATH%
%INPUT_PATH%

5. Recompile the whole solution, ignore the deprecation warnings.

Now you have all necessary files under the pythonnet folder where you have
the sources. You need clr.pyd, python.exe and Python.Runtime.dll.

Test
Run the newly comiled python.exe
Type the following

>>> import System >>> print System.Environment.Version 4.0.30319.1

The last line proves that you're using hte 4.0 runtime. The precomiled
binaries available from Sourceforge would show
2.0.50727.3615

This is also posted with somewhat better formatting under
blog.bidiuk.com/2011/01/python-net-and-vs2010-net-4/

Comments and suggestions are welcome!
-- 
oleksii
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From btribble at ea.com  Tue Jan 18 19:08:50 2011
From: btribble at ea.com (Tribble, Brett)
Date: Tue, 18 Jan 2011 10:08:50 -0800
Subject: [Python.NET] Python.NET and VS2001/.NET 4.0
In-Reply-To: <AANLkTi=aN=CwvFxYgUmHoARUvByiZXQS-NF95SJbc7pm@mail.gmail.com>
References: <AANLkTi=aN=CwvFxYgUmHoARUvByiZXQS-NF95SJbc7pm@mail.gmail.com>
Message-ID: <DA77CDB3CA264844995C82ADA1FE116B6E83D71530@NA-MAIL-1-2.rws.ad.ea.com>

Thanks Biduik,

I will need this in a few short weeks.

From: pythondotnet-bounces+btribble=ea.com at python.org [mailto:pythondotnet-bounces+btribble=ea.com at python.org] On Behalf Of Oleksii Bidiuk
Sent: Monday, January 17, 2011 8:06 AM
To: pythondotnet at python.org
Subject: [Python.NET] Python.NET and VS2001/.NET 4.0

Hi All,

I hope this will help some people like me searching for an answer. Several steps were mentioned by other people as well, but I haven't seen a step-by-step guide. It is not my intention to duplicate other posts in that sense, but rather have all-in-one post.

Here is how I've got VS2010 and .NET 4.0 working with the revision 119 of the Python.NET having Python 2.6 installed. Note that the latest trunk (revision 122) gave me some problems, so I have basically reverted changes to match 119 for the time being.

1. Get the sources (tarball from sourceforge or directly from SVN)
2. Open the pythonnet.sln with VS2010 and convert to 2010 format (will happen automagically)
3. Change the target framework to 4. Follow the following step for EACH project
    3.1. Right-click on the project name and select "Properties"
    3.2. Select the "Application" tab on the left (if not selected yet)
    3.3. Change the "Target framework" to ".NET Framework 4"
4. Open the clrmodule.il<http://clrmodule.il> and change the lines with the version number in the following piece of code

.assembly extern mscorlib
{
     .publickeytoken = (B7 7A 5C 56 19 34 E0 89 )
     .ver 2:0:0:0
}

to have


     .ver 4:0:0:0

5. Open the buildclrmodule.bat and change the

%windir%\Microsoft.NET\Framework\v2.0.50727\ilasm /nologo /quiet /dll %ILASM_EXTRA_ARGS% /include=%INCLUDE_PATH% /output=%OUTPUT_PATH% %INPUT_PATH%

to

%windir%\Microsoft.NET\Framework\v4.0.30319\ilasm /nologo /quiet /dll %ILASM_EXTRA_ARGS% /include=%INCLUDE_PATH% /output=%OUTPUT_PATH% %INPUT_PATH%

5. Recompile the whole solution, ignore the deprecation warnings.

Now you have all necessary files under the pythonnet folder where you have the sources. You need clr.pyd, python.exe and Python.Runtime.dll.

Test
Run the newly comiled python.exe
Type the following

>>> import System >>> print System.Environment.Version 4.0.30319.1

The last line proves that you're using hte 4.0 runtime. The precomiled binaries available from Sourceforge would show
2.0.50727.3615

This is also posted with somewhat better formatting under blog.bidiuk.com/2011/01/python-net-and-vs2010-net-4/<http://blog.bidiuk.com/2011/01/python-net-and-vs2010-net-4/>

Comments and suggestions are welcome!
--
oleksii
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From oleksii.bidiuk at gmail.com  Thu Jan 20 14:49:57 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Thu, 20 Jan 2011 14:49:57 +0100
Subject: [Python.NET] Fwd: PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <AANLkTi=YRaM0ZNVzge-1GSR6W=cfr9rx1=oC8dxQqhHV@mail.gmail.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>
	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>
	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>
	<AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>
	<4D26D6A1.6060701@BCDesignsWell.com>
	<AANLkTimH_2LkQX9HpQdkYoV-C4oULCGSBOnsJh00OLnw@mail.gmail.com>
	<4D3355CA.4090202@BCDesignsWell.com>
	<AANLkTi=YRaM0ZNVzge-1GSR6W=cfr9rx1=oC8dxQqhHV@mail.gmail.com>
Message-ID: <AANLkTi=HzQ9Svu+NnYWe6OsZQhbPM-UwPPwQL2hAHcBS@mail.gmail.com>

Hi Barton,

any news on the problem with ConstructorBinder/ConstructorBinding below? It
seems like the ConstructorBinding class was not checked in. Could this be
the case?

Thanks in advance.

2011/1/17 Oleksii Bidiuk <oleksii.bidiuk at gmail.com>

> Hi Barton,
>
> thanks for the update! I've got the latest version, but the changes to the
> classmanager.cs do not seem to compile
>
> // Implement Overloads on the class object
> ConstructorBinding ctors = new ConstructorBinding(type, tp, co.binder);
> // ExtensionType types are untracked, so don't Incref() them.
> // XXX deprecate __overloads__ soon...
> Runtime.PyDict_SetItemString(dict, "__overloads__", ctors.pyHandle);
> Runtime.PyDict_SetItemString(dict, "Overloads", ctors.pyHandle);
>
> as the new class is called 'ConstructorBinder' (instead of
> ConstructorBinding) and it does not have a matching constructor. I am trying
> to figure out the details, but I assume you will have to push new version
> anyway.
>
> Further I assume this only fixes the proper constructor overloading. I am
> still interested in the .NET 4.0 and VS2010 support. Can you shed some light
> on that? What changes do you expect for proper .NET 4.0 support? I see the
> clrmodule.il and the buildclrmodule.bat refering to 2.0 runtime. Is it
> enough to change these two?
>
> 2011/1/16 Barton <barton at bcdesignswell.com>
>
>>  This has been pushed to the trunk @ version 122 on the 9th of January,
>> 2011.
>> See the Tracker/Patches for details.
>>
>>
>> On 1/11/2011 6:17 AM, Oleksii Bidiuk wrote:
>>
>> Hi Barton,
>>
>>  do you still have any plans to work on the merge? I am curious what the
>> changes are (how much, what impact do they have) and whether there something
>> can be done to help you with this.
>>
>>  Thanks in advance!
>>
>>  2011/1/7 Barton <barton at bcdesignswell.com>
>>
>>>  I've got this working on my private (for the moment) branch.  I could do
>>> this merge by this weekend if folks will find it useful.
>>> -Barton
>>>
>>>
> --
> oleksii
>



-- 
oleksii
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From oleksii.bidiuk at gmail.com  Fri Jan 21 10:06:45 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Fri, 21 Jan 2011 10:06:45 +0100
Subject: [Python.NET] Python.NET and VS2001/.NET 4.0
In-Reply-To: <AANLkTi=aN=CwvFxYgUmHoARUvByiZXQS-NF95SJbc7pm@mail.gmail.com>
References: <AANLkTi=aN=CwvFxYgUmHoARUvByiZXQS-NF95SJbc7pm@mail.gmail.com>
Message-ID: <AANLkTik39pHnsxr8YAzh4dvJ1WQxDYmEs9GkqyUe0ZH0@mail.gmail.com>

Hi All,

A small correction to my post. Revision 122 seem to contain all the code,
only the reference to the constructorbinding.cs is missing in
the Python.Runtime.csproj. Simply adding a reference solves the problem!

2011/1/17 Oleksii Bidiuk <oleksii.bidiuk at gmail.com>

> Hi All,
>
> I hope this will help some people like me searching for an answer. Several
> steps were mentioned by other people as well, but I haven't seen a
> step-by-step guide. It is not my intention to duplicate other posts in that
> sense, but rather have all-in-one post.
>
> Here is how I've got VS2010 and .NET 4.0 working with the revision 119 of
> the Python.NET having Python 2.6 installed. Note that the latest trunk
> (revision 122) gave me some problems, so I have basically reverted changes
> to match 119 for the time being.
>
> 1. Get the sources (tarball from sourceforge or directly from SVN)
> 2. Open the pythonnet.sln with VS2010 and convert to 2010 format (will
> happen automagically)
> 3. Change the target framework to 4. Follow the following step for EACH
> project
>     3.1. Right-click on the project name and select "Properties"
>     3.2. Select the "Application" tab on the left (if not selected yet)
>     3.3. Change the "Target framework" to ".NET Framework 4"
> 4. Open the clrmodule.il and change the lines with the version number in
> the following piece of code
>
> .assembly extern mscorlib { .publickeytoken = (B7 7A 5C 56 19 34 E0 89 )
> .ver 2:0:0:0 }
>
> to have
>
>  .ver 4:0:0:0
>
> 5. Open the buildclrmodule.bat and change the
>
> %windir%\Microsoft.NET\Framework\v2.0.50727\ilasm /nologo /quiet /dll
> %ILASM_EXTRA_ARGS% /include=%INCLUDE_PATH% /output=%OUTPUT_PATH%
> %INPUT_PATH%
>
> to
>
> %windir%\Microsoft.NET\Framework\v4.0.30319\ilasm /nologo /quiet /dll
> %ILASM_EXTRA_ARGS% /include=%INCLUDE_PATH% /output=%OUTPUT_PATH%
> %INPUT_PATH%
>
> 5. Recompile the whole solution, ignore the deprecation warnings.
>
> Now you have all necessary files under the pythonnet folder where you have
> the sources. You need clr.pyd, python.exe and Python.Runtime.dll.
>
> Test
> Run the newly comiled python.exe
> Type the following
>
> >>> import System >>> print System.Environment.Version 4.0.30319.1
>
> The last line proves that you're using hte 4.0 runtime. The precomiled
> binaries available from Sourceforge would show
> 2.0.50727.3615
>
> This is also posted with somewhat better formatting under
> blog.bidiuk.com/2011/01/python-net-and-vs2010-net-4/
>
> Comments and suggestions are welcome!
> --
> oleksii
>



-- 
oleksii
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From barton at BCDesignsWell.com  Fri Jan 21 10:06:38 2011
From: barton at BCDesignsWell.com (Barton)
Date: Fri, 21 Jan 2011 01:06:38 -0800
Subject: [Python.NET] Fwd: PythonNET 2.0 Alpha2 and .NET 4.0
In-Reply-To: <AANLkTi=YRaM0ZNVzge-1GSR6W=cfr9rx1=oC8dxQqhHV@mail.gmail.com>
References: <AANLkTi=GXACN=ctXWdgNi5qbYtZ0nH16L8b2H0AmH_CA@mail.gmail.com>	<8DD31B7980DDC049958BD1E459F31ECA2CD0698C78@KFAEXMIPV1.sdcorp.global.sandisk.com>	<AANLkTimqy4ymODdx3BXFMXoMiFaXDhjypPTgABC+8jKW@mail.gmail.com>	<AANLkTin7_hN--DrCW3d8OTCEWNDV+-BMCxgsLzrM_V1W@mail.gmail.com>	<4D26D6A1.6060701@BCDesignsWell.com>	<AANLkTimH_2LkQX9HpQdkYoV-C4oULCGSBOnsJh00OLnw@mail.gmail.com>	<4D3355CA.4090202@BCDesignsWell.com>
	<AANLkTi=YRaM0ZNVzge-1GSR6W=cfr9rx1=oC8dxQqhHV@mail.gmail.com>
Message-ID: <4D394C9E.50402@BCDesignsWell.com>

You have a missing project file setting.
I've been reluctant to push my project file because it's apt to break 
other peoples builds.

in Python.Runtime.csproj, add the line

<Compile Include="constructorbinding.cs" />

between


<Compile Include="constructorbinder.cs" />
<Compile Include="converter.cs" />

On 1/17/2011 6:15 AM, Oleksii Bidiuk wrote:
> Hi Barton,
>
> thanks for the update! I've got the latest version, but the changes to 
> the classmanager.cs do not seem to compile
>
> // Implement Overloads on the class object
> ConstructorBinding ctors = new ConstructorBinding(type, tp, co.binder);
> // ExtensionType types are untracked, so don't Incref() them.
> // XXX deprecate __overloads__ soon...
> Runtime.PyDict_SetItemString(dict, "__overloads__", ctors.pyHandle);
> Runtime.PyDict_SetItemString(dict, "Overloads", ctors.pyHandle);
>
> as the new class is called 'ConstructorBinder' (instead of 
> ConstructorBinding) and it does not have a matching constructor. I am 
> trying to figure out the details, but I assume you will have to push 
> new version anyway.
>
> Further I assume this only fixes the proper constructor overloading. I 
> am still interested in the .NET 4.0 and VS2010 support. Can you shed 
> some light on that? What changes do you expect for proper .NET 4.0 
> support? I see the clrmodule.il <http://clrmodule.il> and the 
> buildclrmodule.bat refering to 2.0 runtime. Is it enough to change 
> these two?
>
> 2011/1/16 Barton <barton at bcdesignswell.com 
> <mailto:barton at bcdesignswell.com>>
>
>     This has been pushed to the trunk @ version 122 on the 9th of
>     January, 2011.
>     See the Tracker/Patches for details.
>
>
>     On 1/11/2011 6:17 AM, Oleksii Bidiuk wrote:
>>     Hi Barton,
>>
>>     do you still have any plans to work on the merge? I am curious
>>     what the changes are (how much, what impact do they have) and
>>     whether there something can be done to help you with this.
>>
>>     Thanks in advance!
>>
>>     2011/1/7 Barton <barton at bcdesignswell.com
>>     <mailto:barton at bcdesignswell.com>>
>>
>>         I've got this working on my private (for the moment) branch. 
>>         I could do this merge by this weekend if folks will find it
>>         useful.
>>         -Barton
>>
>
> -- 
> oleksii
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From oleksii.bidiuk at gmail.com  Fri Jan 21 10:25:45 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Fri, 21 Jan 2011 10:25:45 +0100
Subject: [Python.NET] Operator overloading for managed objects
Message-ID: <AANLkTikkV3G6=nu1CQesh3-H0gv2W=aKqPqHejB-eiT0@mail.gmail.com>

Hi,

did anybody have experience with using overloaded operators for managed
objects? I have a class that have e.g. the operator+ overloaded in C#, but
that does not seem to be picked up from the Python side. I have tried to add
overloading using the setattr(MyType, "name", method_name), but it only seem
to work for the native Python objects and not for the managed objects. In
both cases I get "TypeError: unsupported operand type(s) for +: 'MyType' and
'MyType'".

Thanks in advance!

-- 
oleksii
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From oleksii.bidiuk at gmail.com  Tue Jan 25 11:39:53 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Tue, 25 Jan 2011 11:39:53 +0100
Subject: [Python.NET] InvalidOperationException when calling a generic
	method on an instance
Message-ID: <AANLkTi=dKaQJSSeRAWmK=gcPQhSX6KGUHXGxhGfmhttx@mail.gmail.com>

Hi All,

does anybody have experience with getting
the InvalidOperationException exception when calling a generic method
defined like

generic <typename T>
MyClass::AnotherClass<T>^ MyClass::MyMethod()
{
...
}

When I create an instance of the MyClass and call the MyMethod() the
exception mentioned above is thrown with the following stack trace:

System.InvalidOperationException: Late bound operations cannot be performed
on types or methods for which ContainsGenericParameters is true.
   at System.Reflection.RuntimeMethodInfo.ThrowNoInvokeException()
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags
invoke
Attr, Binder binder, Object[] parameters, CultureInfo culture, Boolean
skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags
invoke
Attr, Binder binder, Object[] parameters, CultureInfo culture)
   at Python.Runtime.MethodBinder.Invoke(IntPtr inst, IntPtr args, IntPtr
kw, MethodBase info, MethodInfo[] methodinfo) in
C:\...\pythonnet\src\runtime\methodbinder.cs:line 356

The MyClass is an external library which I cannot influence. Calling the
MyMethod is the only way to get data access, so I cannot simply 'avoid using
it'. Perhaps some additional wrapping is needed here? Ideas are highly
appreciated!

-- 
oleksii
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From oleksii.bidiuk at gmail.com  Tue Jan 25 12:33:45 2011
From: oleksii.bidiuk at gmail.com (Oleksii Bidiuk)
Date: Tue, 25 Jan 2011 12:33:45 +0100
Subject: [Python.NET] InvalidOperationException when calling a generic
	method on an instance
In-Reply-To: <AANLkTi=dKaQJSSeRAWmK=gcPQhSX6KGUHXGxhGfmhttx@mail.gmail.com>
References: <AANLkTi=dKaQJSSeRAWmK=gcPQhSX6KGUHXGxhGfmhttx@mail.gmail.com>
Message-ID: <AANLkTin-PGoA0rB=6OdZJP3qsk992c-PFgtf=Hmxa4A9@mail.gmail.com>

Hi All,

It seems that I was missing the type in the call to a generic method,

myClassInstance.MyMethod[type]()

seem to work. Sorry for my impatience.

2011/1/25 Oleksii Bidiuk <oleksii.bidiuk at gmail.com>

> Hi All,
>
> does anybody have experience with getting
> the InvalidOperationException exception when calling a generic method
> defined like
>
> generic <typename T>
> MyClass::AnotherClass<T>^ MyClass::MyMethod()
> {
> ...
> }
>
> When I create an instance of the MyClass and call the MyMethod() the
> exception mentioned above is thrown with the following stack trace:
>
> System.InvalidOperationException: Late bound operations cannot be performed
> on types or methods for which ContainsGenericParameters is true.
>    at System.Reflection.RuntimeMethodInfo.ThrowNoInvokeException()
>    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags
> invoke
> Attr, Binder binder, Object[] parameters, CultureInfo culture, Boolean
> skipVisibilityChecks)
>    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags
> invoke
> Attr, Binder binder, Object[] parameters, CultureInfo culture)
>    at Python.Runtime.MethodBinder.Invoke(IntPtr inst, IntPtr args, IntPtr
> kw, MethodBase info, MethodInfo[] methodinfo) in
> C:\...\pythonnet\src\runtime\methodbinder.cs:line 356
>
> The MyClass is an external library which I cannot influence. Calling the
> MyMethod is the only way to get data access, so I cannot simply 'avoid using
> it'. Perhaps some additional wrapping is needed here? Ideas are highly
> appreciated!
>
> --
> oleksii
>



-- 
oleksii
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From mukherjee.tanmoy at gmail.com  Sat Jan 29 15:30:17 2011
From: mukherjee.tanmoy at gmail.com (Tanmoy)
Date: Sat, 29 Jan 2011 20:00:17 +0530
Subject: [Python.NET] Problems in Installation
Message-ID: <AANLkTinS1LBpuiV9uyzytQawmK3qTb-dd3HqfGkJuVaP@mail.gmail.com>

Hi,
    My name is Tanmoy and i have some problems regarding the installation of
Python .NET in Ubuntu. whenever i try to follow this (
http://mail.python.org/pipermail/pythondotnet/2006-April/000474.html) i get
this weird error

Unhandled Exception: System.DllNotFoundException: python26
  at (wrapper managed-to-native) Python.Runtime.Runtime:Py_Initialize ()
  at Python.Runtime.Runtime.Initialize () [0x00000] in <filename unknown>:0
  at Python.Runtime.PythonEngine.Initialize () [0x00000] in <filename
unknown>:0
  at Python.Runtime.PythonConsole.Main (System.String[] args) [0x00000] in
<filename unknown>:0

Any suggestions where could i be going wrong ?

Sincerely
Tanmoy Mukherjee
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From barton at BCDesignsWell.com  Sun Jan 30 23:44:11 2011
From: barton at BCDesignsWell.com (Barton)
Date: Sun, 30 Jan 2011 14:44:11 -0800
Subject: [Python.NET] Problems in Installation
In-Reply-To: <AANLkTinS1LBpuiV9uyzytQawmK3qTb-dd3HqfGkJuVaP@mail.gmail.com>
References: <AANLkTinS1LBpuiV9uyzytQawmK3qTb-dd3HqfGkJuVaP@mail.gmail.com>
Message-ID: <4D45E9BB.8080204@BCDesignsWell.com>

Although I'm on Windows, I may be able to point out a couple of things:

   1. Since the runtime doesn't do any error checking when trying to
      load the python dynamic (shared) library, this error isn't too weird.
   2. Since the runtime is looking for python26, this is certainly not
      "pythonnet-1.0-rc2-py2.4-clr1.1" as the link you provided states.
   3. Since the runtime is looking for python26, unless you built from
      source, this is most likely a Windows build off the pythondotnet
      project download area on SourcForge.
   4. Since I'm on Windows, I haven't yet tried to build and test under
      Mono. This may be something that I could try in the
      unknown-distant-future.
   5. Since I'm the only person currently uploading pre-built
      assemblies, Linux users must build from source.

AFAIK, the current SVN will build under Mono.
Hope that helps,
Barton

On 1/29/2011 6:30 AM, Tanmoy wrote:
> Hi,
>     My name is Tanmoy and i have some problems regarding the 
> installation of Python .NET in Ubuntu. whenever i try to follow this 
> (http://mail.python.org/pipermail/pythondotnet/2006-April/000474.html) 
> i get this weird error
>
> Unhandled Exception: System.DllNotFoundException: python26
>   at (wrapper managed-to-native) Python.Runtime.Runtime:Py_Initialize ()
>   at Python.Runtime.Runtime.Initialize () [0x00000] in <filename 
> unknown>:0
>   at Python.Runtime.PythonEngine.Initialize () [0x00000] in <filename 
> unknown>:0
>   at Python.Runtime.PythonConsole.Main (System.String[] args) 
> [0x00000] in <filename unknown>:0
>
> Any suggestions where could i be going wrong ?
>
> Sincerely
> Tanmoy Mukherjee
>
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet
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From mukherjee.tanmoy at gmail.com  Mon Jan 31 04:55:01 2011
From: mukherjee.tanmoy at gmail.com (Tanmoy)
Date: Mon, 31 Jan 2011 09:25:01 +0530
Subject: [Python.NET] Problems in Installation
In-Reply-To: <4D45E9BB.8080204@BCDesignsWell.com>
References: <AANLkTinS1LBpuiV9uyzytQawmK3qTb-dd3HqfGkJuVaP@mail.gmail.com>
	<4D45E9BB.8080204@BCDesignsWell.com>
Message-ID: <AANLkTik3WWNHkcwxVHTaKXWFNstSgZ8vsdrFQUL00zvw@mail.gmail.com>

Hi,
    Thanks for your reply. I tried putting in pythononet 26 ... but it did
not work...in short i tried 1,2,3.The current SVN too is crashing. Would
appreciate if any one could do on Ubuntu versions and report me if they face
similar problems.

Sincerely
Tanmoy Mukherjee

On Mon, Jan 31, 2011 at 4:14 AM, Barton <barton at bcdesignswell.com> wrote:

>  Although I'm on Windows, I may be able to point out a couple of things:
>
>    1. Since the runtime doesn't do any error checking when trying to load
>    the python dynamic (shared) library, this error isn't too weird.
>    2. Since the runtime is looking for python26, this is certainly not
>    "pythonnet-1.0-rc2-py2.4-clr1.1" as the link you provided states.
>    3. Since the runtime is looking for python26, unless you built from
>    source, this is most likely a Windows build off the pythondotnet project
>    download area on SourcForge.
>    4. Since I'm on Windows, I haven't yet tried to build and test under
>    Mono. This may be something that I could try in the unknown-distant-future.
>    5. Since I'm the only person currently uploading pre-built assemblies,
>    Linux users must build from source.
>
> AFAIK, the current SVN will build under Mono.
> Hope that helps,
> Barton
>
>
> On 1/29/2011 6:30 AM, Tanmoy wrote:
>
> Hi,
>     My name is Tanmoy and i have some problems regarding the installation
> of Python .NET in Ubuntu. whenever i try to follow this (
> http://mail.python.org/pipermail/pythondotnet/2006-April/000474.html) i
> get this weird error
>
> Unhandled Exception: System.DllNotFoundException: python26
>   at (wrapper managed-to-native) Python.Runtime.Runtime:Py_Initialize ()
>   at Python.Runtime.Runtime.Initialize () [0x00000] in <filename unknown>:0
>
>   at Python.Runtime.PythonEngine.Initialize () [0x00000] in <filename
> unknown>:0
>   at Python.Runtime.PythonConsole.Main (System.String[] args) [0x00000] in
> <filename unknown>:0
>
> Any suggestions where could i be going wrong ?
>
> Sincerely
> Tanmoy Mukherjee
>
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.orghttp://mail.python.org/mailman/listinfo/pythondotnet
>
>


-- 
Tanmoy Mukherjee
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From laszlo.sebo at primefocusworld.com  Mon Jan 31 19:30:00 2011
From: laszlo.sebo at primefocusworld.com (Laszlo Sebo)
Date: Mon, 31 Jan 2011 10:30:00 -0800
Subject: [Python.NET] Problems in Installation
In-Reply-To: <AANLkTik3WWNHkcwxVHTaKXWFNstSgZ8vsdrFQUL00zvw@mail.gmail.com>
References: <AANLkTinS1LBpuiV9uyzytQawmK3qTb-dd3HqfGkJuVaP@mail.gmail.com>	<4D45E9BB.8080204@BCDesignsWell.com>
	<AANLkTik3WWNHkcwxVHTaKXWFNstSgZ8vsdrFQUL00zvw@mail.gmail.com>
Message-ID: <4D46FFA8.9030608@primefocusworld.com>

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