From mark at microenh.com  Tue Oct 14 02:48:46 2008
From: mark at microenh.com (Mark Erbaugh)
Date: Mon, 13 Oct 2008 20:48:46 -0400
Subject: [CentralOH] struct module
Message-ID: <1223945326.11359.7.camel@P1900>

I'm trying to use the struct module to read some data that was created
by saving a C++ struct.  The C++ program was compiled using quad word (8
byte) alignment.

According to the struct docs:

Hint: to align the end of a structure to the alignment requirement of a
particular type, end the format with the code for that type with a
repeat count of zero. For example, the format 'llh0l' specifies two pad
bytes at the end, assuming longs are aligned on 4-byte boundaries. This
only works when native size and alignment are in effect; standard size
and alignment does not enforce any alignment.

struct.calcsize('@h0f') returns 4 (2 byte short, plus padding to 4
bytes) as expected

however,

struct.calcsize('@h0d') also returns 4 bytes. Shouldn't it to return 8
bytes, padding the 2 byte short to 8 bytes.

struct.calcsize('@d') returns 8

This is with:

Python 2.4.3 (#2, Jul 31 2008, 21:56:52) 
[GCC 4.0.3 (Ubuntu 4.0.3-1ubuntu5)] on linux2

Thanks,
Mark




From mark at microenh.com  Tue Oct 21 15:50:48 2008
From: mark at microenh.com (Mark Erbaugh)
Date: Tue, 21 Oct 2008 09:50:48 -0400
Subject: [CentralOH] web.py
Message-ID: <1224597048.10660.7.camel@P1900>

I'm using the web server built in to web.py. In this particular
application, it may be all that is needed as it is low-volume, in-house
and limited use.

web.py has the ability to statically serve binary files from a
directory /static/. The client application expects binary files to be
served from a directory /data/.  Is there any way to have web.py treat
requests for files from /data/ like it does for /static/?

I found the code that does this (it's in httpserver.py) and modified it
to work in this case, but I dislike monkeying with "library" code so I'm
wondering if there is a better way?

Thanks,
Mark


From gacsinger at gmail.com  Tue Oct 21 16:01:53 2008
From: gacsinger at gmail.com (Greg Singer)
Date: Tue, 21 Oct 2008 10:01:53 -0400
Subject: [CentralOH] web.py
In-Reply-To: <1224597048.10660.7.camel@P1900>
References: <1224597048.10660.7.camel@P1900>
Message-ID: <b032e3360810210701p22a51e36j4ecf32b177a675ef@mail.gmail.com>

I think the only solution (besides changing httpserver.py) is
something like the below, which I haven't tested but I think should
work:

url = (
  "/data/(.*)",  "StaticContent"
)

class StaticContent:
  def GET(self, fname):
    try:
      i = open("static/" + fname)
      print i.read()
    except IOError:
      web.notfound()

On Tue, Oct 21, 2008 at 9:50 AM, Mark Erbaugh <mark at microenh.com> wrote:
> I'm using the web server built in to web.py. In this particular
> application, it may be all that is needed as it is low-volume, in-house
> and limited use.
>
> web.py has the ability to statically serve binary files from a
> directory /static/. The client application expects binary files to be
> served from a directory /data/.  Is there any way to have web.py treat
> requests for files from /data/ like it does for /static/?
>
> I found the code that does this (it's in httpserver.py) and modified it
> to work in this case, but I dislike monkeying with "library" code so I'm
> wondering if there is a better way?
>
> Thanks,
> Mark
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> http://mail.python.org/mailman/listinfo/centraloh
>

From mark at microenh.com  Tue Oct 21 16:56:04 2008
From: mark at microenh.com (Mark Erbaugh)
Date: Tue, 21 Oct 2008 10:56:04 -0400
Subject: [CentralOH] web.py
In-Reply-To: <b032e3360810210701p22a51e36j4ecf32b177a675ef@mail.gmail.com>
References: <1224597048.10660.7.camel@P1900>
	<b032e3360810210701p22a51e36j4ecf32b177a675ef@mail.gmail.com>
Message-ID: <1224600964.14399.2.camel@P1900>

On Tue, 2008-10-21 at 10:01 -0400, Greg Singer wrote:
> I think the only solution (besides changing httpserver.py) is
> something like the below, which I haven't tested but I think should
> work:
> 
> url = (
>   "/data/(.*)",  "StaticContent"
> )
> 
> class StaticContent:
>   def GET(self, fname):
>     try:
>       i = open("static/" + fname)
>       print i.read()
>     except IOError:
>       web.notfound()

Greg,

Thanks. I already tried that and found that the binary data was messing
up the file transfer.

I think binary data can be sent, but it would require building mime
headers and encoding the data stream.  Modifying httpserver.py was much
easier.

Maybe I should suggest to the developers the ability to add multiple
static folders.

Mark


From gacsinger at gmail.com  Tue Oct 21 18:28:54 2008
From: gacsinger at gmail.com (Greg Singer)
Date: Tue, 21 Oct 2008 12:28:54 -0400
Subject: [CentralOH] web.py
In-Reply-To: <1224600964.14399.2.camel@P1900>
References: <1224597048.10660.7.camel@P1900>
	<b032e3360810210701p22a51e36j4ecf32b177a675ef@mail.gmail.com>
	<1224600964.14399.2.camel@P1900>
Message-ID: <b032e3360810210928l1c746e99ye7c2034b186c7a86@mail.gmail.com>

On Tue, Oct 21, 2008 at 10:56 AM, Mark Erbaugh <mark at microenh.com> wrote:
> Greg,
>
> Thanks. I already tried that and found that the binary data was messing
> up the file transfer.
>
> I think binary data can be sent, but it would require building mime
> headers and encoding the data stream.  Modifying httpserver.py was much
> easier.
>
> Maybe I should suggest to the developers the ability to add multiple
> static folders.
>
> Mark

Mark,

If you're running on Windows, you may need to open the file "rb" in
order to handle binary files properly. This is something that has bit
me in the past.

But I agree that simply modifying the module is much easier.

 - Greg

From catherine.devlin at gmail.com  Tue Oct 21 23:45:21 2008
From: catherine.devlin at gmail.com (Catherine Devlin)
Date: Tue, 21 Oct 2008 17:45:21 -0400
Subject: [CentralOH] Game Creation Club
Message-ID: <6523e39a0810211445k2988e50l40a7424d2231d0af@mail.gmail.com>

Hi, Python friends!

Peter Dietz just alerted me to the existence of a new club: the Game
Creation Club at OSU.

http://gcc.accad.ohio-state.edu/

I don't know yet how much Python they use, but it must be at least
some because they take part in PyWeek (the recurring Python weeklong
game competition).

If you're interested and near Columbus, check them out!  I'm inviting
them to get involved with PyOhio, too - the possibilities for game
creation and/or gaming workshops at PyOhio are too cool to
contemplate.

'cause geeks just wanna have fu-un,
oh geeks, they wanna have
that's all they really wa-a-a-ant
(etc.)
-- 
- Catherine
http://catherinedevlin.blogspot.com/
*** PyCon * March 27-29, 2009 * Chicago * us.pycon.org ***

From catherine.devlin at gmail.com  Wed Oct 22 10:03:22 2008
From: catherine.devlin at gmail.com (Catherine Devlin)
Date: Wed, 22 Oct 2008 04:03:22 -0400
Subject: [CentralOH] CodeMash abstracts due today
Message-ID: <6523e39a0810220103tdf6a964t556be816475b69f0@mail.gmail.com>

... CodeMash is a pretty awesome January conference in Sandusky.  The
organizers are very Python-friendly and it's a fun time.  I did a
Python intro at CodeMash 2008 and got a great crowd.

If you'd like to do a talk there, move fast - today's the day!
(Sorry, this is a REALLY late reminder.)

---------- Forwarded message ----------
From: Dianne Marsh <dmarsh at srtsolutions.com>
Date: Tue, Oct 21, 2008 at 9:57 AM
Subject: reminder: CodeMash abstracts due by tomorrow
To: undisclosed-recipients


Hi all,

I'm sending out a reminder to people in the community that might want
to submit a talk for CodeMash, and that possibly haven't.  I also
included people who might *know* people that might want to submit a
talk.  Either way, please consider submitting.

Just a reminder: CodeMash will be held January 7-9 at the Kalahari
Resort (indoor water park) in Sandusky, OH.  Targeting developers of
all platforms and languages, CodeMash's philosophy is to "mash, not
bash", bringing together people to learn more about their own
languages of choice as well as about languages that they don't use. We
feel that by learning more about other languages, you broaden your
mind.  We have submissions for Python, .NET, Java, Ruby, Erlang. F#,
and Scala and we're open to more.  We have many tracks to choose from,
but don't feel constrained by what you see.  If there's something that
you feel would be a great talk, we may as well.  Submit it.

Last year's conference attracted over 300 developers from mainly the
midwest (but some people traveled from far reaches of the country).
This year, I think that we may sell out at 500!

We have had a lot of submissions already, and we're thrilled to have
such a great pool to choose from.  That's why I'm bothering you ... to
raise that bar even higher.

Please submit at http://codemash.org/BeASpeaker.aspx

If you do NOT receive a message box confirming your submission, let me know!

If you've already submitted, I would be happy to make sure that your
abstract made it into the database.  Just email me and I'll check.

And if you choose not to submit a talk, I hope that you will attend.
Let me know if you want a reminder when registration opens.  Or just
check back at www.codemash.org.  We're hoping to make registration
live sometime next week.

Dianne

--
Dianne Marsh
Founder/Software Consultant
SRT Solutions
206 S. Fifth Ave, Suite 200
Ann Arbor, MI 48104
(734) 649-8987





-- 
- Catherine
http://catherinedevlin.blogspot.com/
*** PyCon * March 27-29, 2009 * Chicago * us.pycon.org ***

From mark at microenh.com  Tue Oct 28 17:32:32 2008
From: mark at microenh.com (Mark Erbaugh)
Date: Tue, 28 Oct 2008 12:32:32 -0400
Subject: [CentralOH] Idle / Ubuntu Installation Tip
Message-ID: <1225211552.8704.12.camel@quad>

I use Idle, the "standard" Python IDE. I know there are fancier IDE's
available but Idle is "lean and mean" and I feel pretty productive with
it.

On a Windows platform, Idle's Help (F1) menu displays Python help from
locally stored HTML files. However, under Ubuntu Linux, the Help menu
displays online help from www.python.org. This has two problems for me:

1) I have a slow connection (satellite) to the Internet and have to
watch the amount of data I download (daily download limits).

2) The help that is displayed is now for Python 2.6 and I just got
around to upgrading to 2.5.

While you can add you own custom help pages to the Help menu, I looked
into getting Idle on Ubuntu working with local help files.  It's not too
difficult.

The file idlelib.EditorWindow.py sets up the global variable, help_url.
On a Linux system it looks for a file:

/usr/share/doc/python-docs-2.5.2/Doc/index.html

If it doesn't find this file, help_url will be set to use the online
help.

If you install the python-doc (not python2.5-doc package, which
python-doc also installs), the needed html files are installed locally,
but index.html is at:

/usr/share/doc/python2.5-doc/html/index.html

The solution for me was to create a new directory

/usr/share/doc/python-docs-2.5.2

and in that directory create a symbolic link named Doc to

/usr/share/doc/python2.5-doc/html

here are the commands I used:

sudo mkdir /usr/share/doc/python-docs-2.5.2

cd /usr/share/doc/python-docs-2.5.2

sudo ln -s /usr/share/doc/python2.5-doc/html Doc

Since Idle's help_url is only setup at startup, you'll have to restart
Idle for the change to take effect.

Note: I'm currently using Python 2.5.2, change the version numbers above
as appropriate for your Python version.

I hope this is helpful.  Criticisms and improvements are welcome.

Mark