From wilson.tamarrie at gmail.com  Mon Dec  3 02:10:48 2012
From: wilson.tamarrie at gmail.com (T Wilson)
Date: Sun, 2 Dec 2012 19:10:48 -0600
Subject: [Chicago] python office hours
In-Reply-To: <CAHCs_rajfrq7xLoRzVMyio+VOB-J4fsLuog982C8FTpvD_U=bQ@mail.gmail.com>
References: <CAHCs_rajfrq7xLoRzVMyio+VOB-J4fsLuog982C8FTpvD_U=bQ@mail.gmail.com>
Message-ID: <CACoHCNT3fjnGHWdd22ZKVCMMXDFC1fx3DMPq_toK+3KPksesRA@mail.gmail.com>

if you can put it together. I'm in and have 2 people that would be
interested also.  Will help out any way i can.

On Fri, Nov 30, 2012 at 9:23 AM, sheila miguez <shekay at pobox.com> wrote:

>
> quoting replies inline in response to my question on why people don't show
> up to python office hours at ps:one.
>
> On Nov 27, 2012 4:49 PM, "T Wilson" <wilson.tamarrie at gmail.com> wrote:
> >
> > I leave work at 5pm and at school until 10pm you guys are way gone by
> then. even if my class is downtown.  I don't think they want to meet on a
> Friday or early Sat.  Heck I would take a Sunday if it's possible.
> >
>
> Sometimes I'm at ps:one on a weekend. It's not beyond the pale to put
> something together. Keep in mind that I don't have any teaching experience
> so will be discombobulated until I have more.
>
> Okay, so I'd like to set up something specifically on a weekend,
>
> 1. maybe not in December, I'll check.
> 2. I'd like a person with more experience around (or at least on irc) to
> field questions.
> 3. I'd like a small quorum, maybe at least 3 to 5 people who want to learn
> at a similar skill level. if it's not just me helping, then a few more.
>
> > On Tue, Nov 27, 2012 at 4:45 PM, David Dumas <daviddumas at gmail.com>
> wrote:
> >>
> >> > Why don't more of you show up at ps:one for python office hours?
> >> > Sometimes I see people ask questions on the mailing list, but they
> >> > don't show up to the office hours.
> >>
> >> One would need to be a (paying) PS:One member to attend the office
> hours, right?
> >>
>
> Nope. People can attend for something a member is hosting.
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>
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From shekay at pobox.com  Mon Dec  3 19:07:40 2012
From: shekay at pobox.com (sheila miguez)
Date: Mon, 3 Dec 2012 12:07:40 -0600
Subject: [Chicago] Python office hours at PS:One this week
Message-ID: <CAHCs_rZ2V5oAJW676e=q6v=+=JwOqsraM-k2O3cFY6jaU2pyQg@mail.gmail.com>

Hi Chipy!

This is a reminder for python office hours this week.

Python Office Hours is for people of all experience levels. It happens
on the 1st and 3rd Thursdays of the month. There are usually 5 to 10
people who show up. RSVP here:

http://www.meetup.com/ChiPyFans/events/93878812/

-- 
sheila

From dan at streemit.net  Mon Dec  3 21:33:41 2012
From: dan at streemit.net (D Mahoney)
Date: Mon, 03 Dec 2012 14:33:41 -0600
Subject: [Chicago] Passing an expression into Python then executing it
Message-ID: <50BD0CA5.50908@streemit.net>

I'm working on a log file parser and have a bunch of regular expressions 
I want to watch for and for each regex I have an expression that tells 
me what re output result I want to return for analysis. For example, one 
of my instruction lines might look like:
'(Connection closed by ([a-zA-Z0-9.-]+)', 'groups()[0]'
What that would tell me is that after I do a re.search of the compiled 
regex against my log file line, if the input line matches the regex I 
want to return the contents of groups()[0] to the calling code.

I am at a loss as to how to do this.

I've been experimenting with the "compile" and "exec" commands, but 
haven't been able to figure out how to do what I'm attempting. I've also 
tried using backticks, but so far all I've been able to do is return the 
string "groups()[0]".

Is there a reasonable way to do what I'm attempting, or should I look 
for a different approach?

From thatmattbone at gmail.com  Mon Dec  3 21:50:23 2012
From: thatmattbone at gmail.com (Matt Bone)
Date: Mon, 3 Dec 2012 14:50:23 -0600
Subject: [Chicago] Passing an expression into Python then executing it
In-Reply-To: <50BD0CA5.50908@streemit.net>
References: <50BD0CA5.50908@streemit.net>
Message-ID: <CAG0VBHsLkVWrOPGZ_1xa70A-yfJQ93GXNCcMGdBoESeQbHCtGA@mail.gmail.com>

I'd avoid the problem and build a dictionary from regex's to functions.

Here's an example (in python 2.7):
http://pastebin.com/4gUBb4W8

--matt

On Mon, Dec 3, 2012 at 2:33 PM, D Mahoney <dan at streemit.net> wrote:

> '(Connection closed by ([a-zA-Z0-9.-]+)', 'groups()[0]'
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From kumar.mcmillan at gmail.com  Mon Dec  3 22:10:26 2012
From: kumar.mcmillan at gmail.com (Kumar McMillan)
Date: Mon, 3 Dec 2012 15:10:26 -0600
Subject: [Chicago] Passing an expression into Python then executing it
In-Reply-To: <50BD0CA5.50908@streemit.net>
References: <50BD0CA5.50908@streemit.net>
Message-ID: <CA+VOWAFrZeCgFtc=TpRMPRugZ69pjqxQrdiWKxpBBD6gYOYkXg@mail.gmail.com>

On Mon, Dec 3, 2012 at 2:33 PM, D Mahoney <dan at streemit.net> wrote:

> I'm working on a log file parser and have a bunch of regular expressions I
> want to watch for and for each regex I have an expression that tells me
> what re output result I want to return for analysis. For example, one of my
> instruction lines might look like:
> '(Connection closed by ([a-zA-Z0-9.-]+)', 'groups()[0]'
> What that would tell me is that after I do a re.search of the compiled
> regex against my log file line, if the input line matches the regex I want
> to return the contents of groups()[0] to the calling code.
>
> I am at a loss as to how to do this.
>
> I've been experimenting with the "compile" and "exec" commands, but
> haven't been able to figure out how to do what I'm attempting. I've also
> tried using backticks, but so far all I've been able to do is return the
> string "groups()[0]".
>

Hi Dan.
It sounds like you are on the right track. The pattern you're describing is
common but in Python we generally handle it with callbacks. So you could do
it like this:

expr = ['(Connection closed by ([a-zA-Z0-9.-]+)', processor]

Notice how instead of mapping an expression to a string of code, each
expression is mapped to a callback. The callback could look like this:

def processor(match_ob):
    return match_ob.groups()[0]

I think that would give you the same flexibility you were trying to achieve
by executing a string of code.


>
> Is there a reasonable way to do what I'm attempting, or should I look for
> a different approach?
> ______________________________**_________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/**mailman/listinfo/chicago<http://mail.python.org/mailman/listinfo/chicago>
>
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From dale at codefu.org  Mon Dec  3 22:53:12 2012
From: dale at codefu.org (Dale)
Date: Mon, 3 Dec 2012 15:53:12 -0600
Subject: [Chicago] Passing an expression into Python then executing it
In-Reply-To: <50BD0CA5.50908@streemit.net>
References: <50BD0CA5.50908@streemit.net>
Message-ID: <CAEj9N4JHHjF-ycZygwdL11unGMB49F0zCRuF5wuCiNodHKu1QQ@mail.gmail.com>

On Mon, Dec 3, 2012 at 2:33 PM, D Mahoney <dan at streemit.net> wrote:
>
> I'm working on a log file parser and have a bunch of regular expressions I want to watch for and for each regex I have an expression that tells me what re output result I want to return for analysis. For example, one of my instruction lines might look like:
> '(Connection closed by ([a-zA-Z0-9.-]+)', 'groups()[0]'
> What that would tell me is that after I do a re.search of the compiled regex against my log file line, if the input line matches the regex I want to return the contents of groups()[0] to the calling code.

First, to answer your question, this works:

~~~~~~
import re
import inspect

REGEXPS = [(r"(foo)", "groups()[0]")]
INPUT = "foo"

for regexp, expression in REGEXPS:
    match = re.search(regexp, INPUT)
    if match:
        match_dict = dict(inspect.getmembers(match))
        print repr(regexp), "matched with result:", eval(expression, match_dict)
~~~~~~

That dict(inspect.getmembers(match)) builds a dictionary of attribute
-> value for every attribute on the match object, and then it uses
that as the globals dictionary to evaluate your expression.

Don't do this.  Please.  It's bad in several ways.  I'm afraid I don't
really have time to explain right now, but this is almost certain to
lead to headaches.  I just wanted to demonstrate how it can be done
for academic purposes.

The other suggestions you've already gotten are good.  To those I'll
add: Can you always just extract group 1?  Here's an example using
your original regexp:

~~~~~~
>>> match = re.search(r"Connection closed by ([a-zA-Z0-9.-]+)",
...                   "Connection closed by 1.2.3.4")
>>> match.group(1)
'1.2.3.4'
~~~~~~

Note that I removed the outer parentheses because they were
superfluous in this example.  (Also note that there's no reason to
call groups()[1]; group(1) will do just fine.)

Maybe sometimes you need to use more than one set of parentheses,
which could change the number of the group you want?  If that's the
problem, do you know about the (?:...) construct?  Example:

~~~~~~
>>> match = re.search(r"Connection (?:opened|closed) by ([a-zA-Z0-9.-]+)", "Connection closed by 1.2.3.4")
>>> match.group(1)
'1.2.3.4'
~~~~~~

Note that I used two sets of parentheses but only created one group:
(?:opened|closed) works just like (opened|closed), but it doesn't
capture what's inside into a numbered group.

Finally, are you aware of named groups?  For example:

~~~~~~
>>> match = re.search(r"Connection closed by (?P<address>[a-zA-Z0-9.-]+)",
...                   "Connection closed by 1.2.3.4")
>>> match.group("address")
'1.2.3.4'
>>> match.groupdict()
{'address': '1.2.3.4'}
~~~~~~

Named groups let you assign a name to a captured group, like "address"
above.  That way you don't have to worry about what order your groups
come in.  You can also get all the named groups out of a match with
the groupdict method.  You could then very easily do thing like 'if
"username" in match.groupdict(): ...' to only take an action if a
particular regular expression may hold a "username" group.

Regards,
Dale

From deadwisdom at gmail.com  Mon Dec  3 23:20:16 2012
From: deadwisdom at gmail.com (Brantley Harris)
Date: Mon, 3 Dec 2012 16:20:16 -0600
Subject: [Chicago] Passing an expression into Python then executing it
In-Reply-To: <50BD0CA5.50908@streemit.net>
References: <50BD0CA5.50908@streemit.net>
Message-ID: <CAKwoybjUUbYi5Q9t-p13QYUCFuqTeTT=am3neH1Hgki2uF6h_Q@mail.gmail.com>

Essentially you have instructions that are a pair (regex, result).  How
complex do you want ``result`` to be?  Kumar is right that you can be
infinitely complex by passing it in as a pure function.  This is likely
you're best bet.

However, if you need it to be a string, because of easy configuration or
some other reason, then you have to pass something meaningful into it.

You have a few options after that, one is to just have a {0, 1, 2, 3, ...,
n} and return the m.groups()[n].  But something tells me you want something
a bit more complex.


Another is completely unsafe, security-wise, but unquestionably easy and
powerful:

   def get_result(m, code):
       return eval(code, {}, {'m': m})

Then you can do:
   >>> regex, result = 'Connection closed by ([a-zA-Z0-9.-]+)',
'm.groups()[0]'
   >>> m = re.match(regex, 'Connection closed by TheCloser')
   >>> print get_result(m, result)
   TheCloser

This is, as I said, completely insecure.  If anyone is allowed to specify
the "result", they could do whatever they wanted to your system.


Another is to run it as a template.  Safe and secure, and allows rather
high complexities:

   from jinja2 import Template
   def get_result(m, code):
       return Template(code).render(m=m)

Then you can do:
   >>> regex, result = 'Connection closed by ([a-zA-Z0-9.-]+)', '{{
m.groups()[0] }}'
   >>> m = re.match(regex, 'Connection closed by TheCloser')
   >>> print get_result(m, result)
   TheCloser

Along with any of the other complexities available in the Jinja2 Template
Library.


On Mon, Dec 3, 2012 at 2:33 PM, D Mahoney <dan at streemit.net> wrote:

> For
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From dan at streemit.net  Tue Dec  4 19:11:17 2012
From: dan at streemit.net (D Mahoney)
Date: Tue, 04 Dec 2012 12:11:17 -0600
Subject: [Chicago] Passing an expression into Python then executing it
In-Reply-To: <CAKwoybjUUbYi5Q9t-p13QYUCFuqTeTT=am3neH1Hgki2uF6h_Q@mail.gmail.com>
References: <50BD0CA5.50908@streemit.net>
	<CAKwoybjUUbYi5Q9t-p13QYUCFuqTeTT=am3neH1Hgki2uF6h_Q@mail.gmail.com>
Message-ID: <50BE3CC5.1070000@streemit.net>

Thanks for the wonderful advice, everybody! I love reading this mailing 
list - I learn a lot here.

It does indeed look like callbacks are the way to go. That would allow 
me to easily resolve a couple other small issues I've been seeing with 
my code. I'll make the changes to use callbacks this afternoon.

It would be wonderful if I could just always grab groups()[0], but in a 
few instances I need to grab other stuff. Kernel messages, for example, 
where the string looks like "kernel: [<ffffffff8000b>] 
vfs_read+0xcb/0x171". In this instance I want to capture the "vfs_read" 
part but don't care (for summary purposes" what memory address is 
associated with it. I could take care of this with a more elaborate 
regex, but given the audience that is going to be using this tool a 
simpler regex that makes use of callbacks ought be a better fit.

Again, thanks for all the input. I'm going to study all of your 
suggestions, and move my code to the callback solution right away.

On 12/03/2012 04:20 PM, Brantley Harris wrote:
> Essentially you have instructions that are a pair (regex, result). 
>  How complex do you want ``result`` to be?  Kumar is right that you 
> can be infinitely complex by passing it in as a pure function.  This 
> is likely you're best bet.
>
> However, if you need it to be a string, because of easy configuration 
> or some other reason, then you have to pass something meaningful into it.
>
> You have a few options after that, one is to just have a {0, 1, 2, 3, 
> ..., n} and return the m.groups()[n].  But something tells me you want 
> something a bit more complex.
>
>
> Another is completely unsafe, security-wise, but unquestionably easy 
> and powerful:
>
>    def get_result(m, code):
>        return eval(code, {}, {'m': m})
>
> Then you can do:
> >>> regex, result = 'Connection closed by ([a-zA-Z0-9.-]+)', 
> 'm.groups()[0]'
> >>> m = re.match(regex, 'Connection closed by TheCloser')
> >>> print get_result(m, result)
>    TheCloser
>
> This is, as I said, completely insecure.  If anyone is allowed to 
> specify the "result", they could do whatever they wanted to your system.
>
>
> Another is to run it as a template.  Safe and secure, and allows 
> rather high complexities:
>
>    from jinja2 import Template
>    def get_result(m, code):
>        return Template(code).render(m=m)
>
> Then you can do:
> >>> regex, result = 'Connection closed by ([a-zA-Z0-9.-]+)', '{{ 
> m.groups()[0] }}'
> >>> m = re.match(regex, 'Connection closed by TheCloser')
> >>> print get_result(m, result)
>    TheCloser
>
> Along with any of the other complexities available in the Jinja2 
> Template Library.
>
>
> On Mon, Dec 3, 2012 at 2:33 PM, D Mahoney <dan at streemit.net 
> <mailto:dan at streemit.net>> wrote:
>
>     For
>
>
>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago

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From brianhray at gmail.com  Wed Dec  5 14:50:27 2012
From: brianhray at gmail.com (Brian Ray)
Date: Wed, 5 Dec 2012 07:50:27 -0600
Subject: [Chicago] Venue and Talks found for Next Weeks Meeting
Message-ID: <CANKg38vwR9jj6mLeaBCu9C-3ZXviTv5-a7KSn8aBReJXN57B1w@mail.gmail.com>

Really good news!

We have full sponsorship for next weekend's meeting at Excelerate Labs in
1871 from our friends over at SpotHero.

RSVP is now open -> http://chipy.org

I am working with Tal and Jordan on some better talk descriptions.


-- 
Brian Ray
@brianray
(773) 669-7717
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From malcolm.newsome at gmail.com  Wed Dec  5 16:38:47 2012
From: malcolm.newsome at gmail.com (Malcolm Newsome)
Date: Wed, 5 Dec 2012 09:38:47 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
Message-ID: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>

Hey ChiPy,

Python is/was my first language.  Yet, I've recently begun learning C# for
my new job.

One thing I've come across in C# (and, quite frankly, am having a difficult
time grasping) is Get and Set (Accessors).

Since, I don't ever recall reading about this in Python, I'm wondering if
they exist.  If not, what is the "thinking" behind why they are not
included in the language?

Additionally, a separate, but perhaps related question is that I have not
seen public/private classes in Python.  How might this factor into the
whole accessor scenario?  (Or, am I trying to relate two topics that have
nothing to do with each other?)

Hopefully these questions are clear enough...

Thanks in advance,

Malcolm Newsome
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From orblivion at gmail.com  Wed Dec  5 16:54:41 2012
From: orblivion at gmail.com (Dan Krol)
Date: Wed, 5 Dec 2012 07:54:41 -0800
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
Message-ID: <CAAWRcS9a0SrGsMzpOJp8-pf2aGhQFvYPfsoNvDP6kG0tOwSJFQ@mail.gmail.com>

http://docs.python.org/2/library/functions.html#property

Or if get, set, and delete are just not enough granularity:

http://docs.python.org/2/howto/descriptor.html

On Wed, Dec 5, 2012 at 7:38 AM, Malcolm Newsome
<malcolm.newsome at gmail.com> wrote:
> Hey ChiPy,
>
> Python is/was my first language.  Yet, I've recently begun learning C# for
> my new job.
>
> One thing I've come across in C# (and, quite frankly, am having a difficult
> time grasping) is Get and Set (Accessors).
>
> Since, I don't ever recall reading about this in Python, I'm wondering if
> they exist.  If not, what is the "thinking" behind why they are not included
> in the language?
>
> Additionally, a separate, but perhaps related question is that I have not
> seen public/private classes in Python.  How might this factor into the whole
> accessor scenario?  (Or, am I trying to relate two topics that have nothing
> to do with each other?)
>
> Hopefully these questions are clear enough...
>
> Thanks in advance,
>
> Malcolm Newsome
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>

From tottinge at gmail.com  Wed Dec  5 17:09:08 2012
From: tottinge at gmail.com (Tim Ottinger)
Date: Wed, 5 Dec 2012 08:09:08 -0800
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
Message-ID: <CAN2NStmbHLBa8L17gDOqeP_18i5gLU3KuRtA8zGAhyXVVO9Rfw@mail.gmail.com>

We have them but they're not terribly useful. they're not all that useful
on c# really since a bar with a getter and setter is effectively a public
variable.

look at "property"
On Dec 5, 2012 7:44 AM, "Malcolm Newsome" <malcolm.newsome at gmail.com> wrote:

> Hey ChiPy,
>
> Python is/was my first language.  Yet, I've recently begun learning C# for
> my new job.
>
> One thing I've come across in C# (and, quite frankly, am having a
> difficult time grasping) is Get and Set (Accessors).
>
> Since, I don't ever recall reading about this in Python, I'm wondering if
> they exist.  If not, what is the "thinking" behind why they are not
> included in the language?
>
> Additionally, a separate, but perhaps related question is that I have not
> seen public/private classes in Python.  How might this factor into the
> whole accessor scenario?  (Or, am I trying to relate two topics that have
> nothing to do with each other?)
>
> Hopefully these questions are clear enough...
>
> Thanks in advance,
>
> Malcolm Newsome
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>
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From brian at python.org  Wed Dec  5 17:15:48 2012
From: brian at python.org (Brian Curtin)
Date: Wed, 5 Dec 2012 10:15:48 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
Message-ID: <CAD+XWwpE=R-RPq=G8567JXxmNeBQY1nN=ZeYSkR5QtqayTKEUQ@mail.gmail.com>

On Wed, Dec 5, 2012 at 9:38 AM, Malcolm Newsome
<malcolm.newsome at gmail.com> wrote:
> Additionally, a separate, but perhaps related question is that I have not
> seen public/private classes in Python.  How might this factor into the whole
> accessor scenario?  (Or, am I trying to relate two topics that have nothing
> to do with each other?)

There's no notion of private classes, but you could create private
attributes on a class using a leading double underscore. I and most
others don't recommend doing this.

class MyClass:
    def __private(self):
        ...

Python uses "name mangling" to hide the __private method, but nothing
is stopping you from unmangling the name and just calling mangled
names.

Check out this first paragraph for more information:
http://en.wikipedia.org/wiki/Python_syntax_and_semantics#Objects

From diomedestydeus at gmail.com  Wed Dec  5 17:22:54 2012
From: diomedestydeus at gmail.com (Philip Doctor)
Date: Wed, 5 Dec 2012 10:22:54 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAD+XWwpE=R-RPq=G8567JXxmNeBQY1nN=ZeYSkR5QtqayTKEUQ@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
	<CAD+XWwpE=R-RPq=G8567JXxmNeBQY1nN=ZeYSkR5QtqayTKEUQ@mail.gmail.com>
Message-ID: <CAAqWh+_hirD-rp4h9cJGyVon3M+f4zvafXSNWfkc5ZjO2hZKrw@mail.gmail.com>

Tim,
I agree that they get misused a lot (especially in C#) but I see it's very
common to put validation in a set in c#.  So maybe syntactically it looks
like you're just setting myCar.Speed to 60, but in myCar it's validating
that Speed is not negative and it's less than MaxSpeed, etc etc.  I
actually see this happening more and more in C# with data attributes in
msft MVC.  They have a public get/set and then an annotation that indicates
things like not negative or required, etc etc.  I guess the caveat being
that without a return value, your only way to really communicate that a
value is out of bounds is with an exception throw, so your developers need
to be comfortable with that kind of getter/setter feedback.

My only point in this ramble being that public get/set, while often cargo
culted in and bad style, can actually still be quite useful in c# and a
little bit better than a public variable :)




On Wed, Dec 5, 2012 at 10:15 AM, Brian Curtin <brian at python.org> wrote:

> On Wed, Dec 5, 2012 at 9:38 AM, Malcolm Newsome
> <malcolm.newsome at gmail.com> wrote:
> > Additionally, a separate, but perhaps related question is that I have not
> > seen public/private classes in Python.  How might this factor into the
> whole
> > accessor scenario?  (Or, am I trying to relate two topics that have
> nothing
> > to do with each other?)
>
> There's no notion of private classes, but you could create private
> attributes on a class using a leading double underscore. I and most
> others don't recommend doing this.
>
> class MyClass:
>     def __private(self):
>         ...
>
> Python uses "name mangling" to hide the __private method, but nothing
> is stopping you from unmangling the name and just calling mangled
> names.
>
> Check out this first paragraph for more information:
> http://en.wikipedia.org/wiki/Python_syntax_and_semantics#Objects
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
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From deadwisdom at gmail.com  Wed Dec  5 17:29:15 2012
From: deadwisdom at gmail.com (Brantley Harris)
Date: Wed, 5 Dec 2012 10:29:15 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAAqWh+_hirD-rp4h9cJGyVon3M+f4zvafXSNWfkc5ZjO2hZKrw@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
	<CAD+XWwpE=R-RPq=G8567JXxmNeBQY1nN=ZeYSkR5QtqayTKEUQ@mail.gmail.com>
	<CAAqWh+_hirD-rp4h9cJGyVon3M+f4zvafXSNWfkc5ZjO2hZKrw@mail.gmail.com>
Message-ID: <CAKwoybgf-W57dfn4Epcw9AQyb8Df2CnggGiq3-qcXJJvGwjgCQ@mail.gmail.com>

Interesting, you're essentially ensuring a sort of type check on the
attribute.

Generally in the python world you only do this sort of checking in a
function that takes the object, which strikes me as more positive
programming, but I'm not sure why.  Possibly because I try very hard to put
less logic on the objects themselves and more in the functions/methods that
use them, because the less logic on the objects there is, the more pure
they are and therefore the more modular.

On Wed, Dec 5, 2012 at 10:22 AM, Philip Doctor <diomedestydeus at gmail.com>wrote:

> Tim,
> I agree that they get misused a lot (especially in C#) but I see it's very
> common to put validation in a set in c#.  So maybe syntactically it looks
> like you're just setting myCar.Speed to 60, but in myCar it's validating
> that Speed is not negative and it's less than MaxSpeed, etc etc.  I
> actually see this happening more and more in C# with data attributes in
> msft MVC.  They have a public get/set and then an annotation that indicates
> things like not negative or required, etc etc.  I guess the caveat being
> that without a return value, your only way to really communicate that a
> value is out of bounds is with an exception throw, so your developers need
> to be comfortable with that kind of getter/setter feedback.
>
> My only point in this ramble being that public get/set, while often cargo
> culted in and bad style, can actually still be quite useful in c# and a
> little bit better than a public variable :)
>
>
>
>
> On Wed, Dec 5, 2012 at 10:15 AM, Brian Curtin <brian at python.org> wrote:
>
>> On Wed, Dec 5, 2012 at 9:38 AM, Malcolm Newsome
>> <malcolm.newsome at gmail.com> wrote:
>> > Additionally, a separate, but perhaps related question is that I have
>> not
>> > seen public/private classes in Python.  How might this factor into the
>> whole
>> > accessor scenario?  (Or, am I trying to relate two topics that have
>> nothing
>> > to do with each other?)
>>
>> There's no notion of private classes, but you could create private
>> attributes on a class using a leading double underscore. I and most
>> others don't recommend doing this.
>>
>> class MyClass:
>>     def __private(self):
>>         ...
>>
>> Python uses "name mangling" to hide the __private method, but nothing
>> is stopping you from unmangling the name and just calling mangled
>> names.
>>
>> Check out this first paragraph for more information:
>> http://en.wikipedia.org/wiki/Python_syntax_and_semantics#Objects
>> _______________________________________________
>> Chicago mailing list
>> Chicago at python.org
>> http://mail.python.org/mailman/listinfo/chicago
>>
>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>
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From shekay at pobox.com  Wed Dec  5 17:34:24 2012
From: shekay at pobox.com (sheila miguez)
Date: Wed, 5 Dec 2012 10:34:24 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAAqWh+_hirD-rp4h9cJGyVon3M+f4zvafXSNWfkc5ZjO2hZKrw@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
	<CAD+XWwpE=R-RPq=G8567JXxmNeBQY1nN=ZeYSkR5QtqayTKEUQ@mail.gmail.com>
	<CAAqWh+_hirD-rp4h9cJGyVon3M+f4zvafXSNWfkc5ZjO2hZKrw@mail.gmail.com>
Message-ID: <CAHCs_raf1HL-x+Hsbbiw0dmK8TVf3bqO2dRgWHMH72CJ5YKRMA@mail.gmail.com>

GRAR sometimes things are so annoying. why must we suffer so?

This setter/getter stuff with cross cutting concerns or business
logic, or what-have-you. ARG

In java, sometimes I handle the validation stuff by making pojos with
no setters, but they have builders. The builders provide the
validation logic. In the past, when people have put logic in POJO
getters and setters for things that get serialized and sent across the
wire to a client, I've had reactions like being ape-shit insane due to
the annoyances that can arise. I don't know, I guess you can move the
ape-shit annoyedness by moving the logic to different parts and then
other painful things will happen. With java, I have reacted to painful
things by using god-awful builders. to avoid god-awful other things. I
bet these are all smells happening due to design but also probably due
to the language. not just the design. the design accrues to the
language. HULK SMASH



On Wed, Dec 5, 2012 at 10:22 AM, Philip Doctor <diomedestydeus at gmail.com> wrote:
> Tim,
> I agree that they get misused a lot (especially in C#) but I see it's very
> common to put validation in a set in c#.  So maybe syntactically it looks
> like you're just setting myCar.Speed to 60, but in myCar it's validating
> that Speed is not negative and it's less than MaxSpeed, etc etc.  I actually
> see this happening more and more in C# with data attributes in msft MVC.
> They have a public get/set and then an annotation that indicates things like
> not negative or required, etc etc.  I guess the caveat being that without a
> return value, your only way to really communicate that a value is out of
> bounds is with an exception throw, so your developers need to be comfortable
> with that kind of getter/setter feedback.
>
> My only point in this ramble being that public get/set, while often cargo
> culted in and bad style, can actually still be quite useful in c# and a
> little bit better than a public variable :)
>
>
>
>
> On Wed, Dec 5, 2012 at 10:15 AM, Brian Curtin <brian at python.org> wrote:
>>
>> On Wed, Dec 5, 2012 at 9:38 AM, Malcolm Newsome
>> <malcolm.newsome at gmail.com> wrote:
>> > Additionally, a separate, but perhaps related question is that I have
>> > not
>> > seen public/private classes in Python.  How might this factor into the
>> > whole
>> > accessor scenario?  (Or, am I trying to relate two topics that have
>> > nothing
>> > to do with each other?)
>>
>> There's no notion of private classes, but you could create private
>> attributes on a class using a leading double underscore. I and most
>> others don't recommend doing this.
>>
>> class MyClass:
>>     def __private(self):
>>         ...
>>
>> Python uses "name mangling" to hide the __private method, but nothing
>> is stopping you from unmangling the name and just calling mangled
>> names.
>>
>> Check out this first paragraph for more information:
>> http://en.wikipedia.org/wiki/Python_syntax_and_semantics#Objects
>> _______________________________________________
>> Chicago mailing list
>> Chicago at python.org
>> http://mail.python.org/mailman/listinfo/chicago
>
>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>



-- 
sheila

From shekay at pobox.com  Wed Dec  5 17:36:17 2012
From: shekay at pobox.com (sheila miguez)
Date: Wed, 5 Dec 2012 10:36:17 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
Message-ID: <CAHCs_rYoiw7DTV5aAzC5RJ5vpg+7c_7JH+FMZe5jHrWLF96koA@mail.gmail.com>

Btw, yes.

On Wed, Dec 5, 2012 at 9:38 AM, Malcolm Newsome
<malcolm.newsome at gmail.com> wrote:
>
> Hopefully these questions are clear enough...



-- 
sheila

From diomedestydeus at gmail.com  Wed Dec  5 18:02:53 2012
From: diomedestydeus at gmail.com (Philip Doctor)
Date: Wed, 5 Dec 2012 11:02:53 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAHCs_rYoiw7DTV5aAzC5RJ5vpg+7c_7JH+FMZe5jHrWLF96koA@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
	<CAHCs_rYoiw7DTV5aAzC5RJ5vpg+7c_7JH+FMZe5jHrWLF96koA@mail.gmail.com>
Message-ID: <CAAqWh+-kJro=i3scoeLjRhiR2H-uDN3+mcZ=B2K4FS6hb7x6ww@mail.gmail.com>

> Possibly because I try very hard to put less logic on the objects
themselves and more in the functions/methods that use them

Without trying to further transform Sheila into the hulk, I would suggest
that's one way to do it, but another way gets are the heart of OO
encapsulation and data hiding.

If a Car class owns the idea of being a car, then it should own private int
speed as well as the way to set speed (either through public void
accelerate() or a public setter).  Then a call to those methods invokes the
business logic in Car because Car owns that business logic, after all, it
is the abstraction of a Car.  Now when we goto change how a Car works and
want to check that the engine is On before we can set speed, we have one
place to maintain that code, in Car, and none of the other developers who
call our code need to make any changes (unless a developer has a simulation
of rolling a car down a hill... then maybe we are in trouble... hopefully
we have integration tests).  On the other hand, if Car just has a lot of
data in it, and you are passing Car to a bunch of functions which then
change the variables in Car, then the impact of adding an "On" check is
maybe less certain.  There's a lot of other code you need to search through
for references to Car and see how each one is using Car.

Having seen both ways of doing it for many years, I can agree that both are
going to have drawbacks, and both are going to be subject to bad coding
practices.  The most obnoxious of which is easily some developer changing
Car by copy+pasting accelerate() into accelerate_new() and then making
their modifications there (if you want to talk hulk rage, that's mine right
there).  So neither is a magic bullet, but having car data hide/etc is the
more object oriented approach.

Interestingly, one of my favorite blogs by Mark Seemann (who is a
dependency injection master) recently had an interesting discussion on
encapsulation and information hiding as well.  I would highly recommend his
take on it too (although there are many great articles on the web):

http://blog.ploeh.dk/2012/11/27/EncapsulationOfProperties.aspx






On Wed, Dec 5, 2012 at 10:36 AM, sheila miguez <shekay at pobox.com> wrote:

> Btw, yes.
>
> On Wed, Dec 5, 2012 at 9:38 AM, Malcolm Newsome
> <malcolm.newsome at gmail.com> wrote:
> >
> > Hopefully these questions are clear enough...
>
>
>
> --
> sheila
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
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From brianhray at gmail.com  Wed Dec  5 19:42:15 2012
From: brianhray at gmail.com (Brian Ray)
Date: Wed, 5 Dec 2012 12:42:15 -0600
Subject: [Chicago] Speaker Needed
Message-ID: <CANKg38uwHFUgxom9TNG4W4_CNr9o-tPLvv24MAQcTaYP0tivEg@mail.gmail.com>

Anybody have something they want to present at next week's ChiPy. Get a
 bunch of +1 and you are in the cool club.


-- 
Brian Ray
@brianray
(773) 669-7717
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From brianhray at gmail.com  Wed Dec  5 19:43:55 2012
From: brianhray at gmail.com (Brian Ray)
Date: Wed, 5 Dec 2012 12:43:55 -0600
Subject: [Chicago] Venue and Talks found for Next Weeks Meeting
In-Reply-To: <CANKg38vwR9jj6mLeaBCu9C-3ZXviTv5-a7KSn8aBReJXN57B1w@mail.gmail.com>
References: <CANKg38vwR9jj6mLeaBCu9C-3ZXviTv5-a7KSn8aBReJXN57B1w@mail.gmail.com>
Message-ID: <CANKg38tu4e3ELinAXjRYMnP_PTwV298QiaMpFM=4btANq=v3Rg@mail.gmail.com>

I meant next week's meeting. Yes it is the same time as every month, 7pm
2nd Thursday.

This is going to be the best ever.


On Wed, Dec 5, 2012 at 7:50 AM, Brian Ray <brianhray at gmail.com> wrote:

> Really good news!
>
> We have full sponsorship for next weekend's meeting at Excelerate Labs in
> 1871 from our friends over at SpotHero.
>
> RSVP is now open -> http://chipy.org
>
> I am working with Tal and Jordan on some better talk descriptions.
>
>
> --
> Brian Ray
> @brianray
> (773) 669-7717
>
>


-- 
Brian Ray
@brianray
(773) 669-7717
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From carl at personnelware.com  Wed Dec  5 19:50:00 2012
From: carl at personnelware.com (Carl Karsten)
Date: Wed, 5 Dec 2012 12:50:00 -0600
Subject: [Chicago] Speaker Needed
In-Reply-To: <CANKg38uwHFUgxom9TNG4W4_CNr9o-tPLvv24MAQcTaYP0tivEg@mail.gmail.com>
References: <CANKg38uwHFUgxom9TNG4W4_CNr9o-tPLvv24MAQcTaYP0tivEg@mail.gmail.com>
Message-ID: <CADmzSShoJ57SDyg7+6wyg7qrfJO9Ds7Swwz6WzgrDiOM-ip+sg@mail.gmail.com>

I think the 2 talks we have are going to use up all of the meeting.

On Wed, Dec 5, 2012 at 12:42 PM, Brian Ray <brianhray at gmail.com> wrote:
> Anybody have something they want to present at next week's ChiPy. Get a
> bunch of +1 and you are in the cool club.
>
>
> --
> Brian Ray
> @brianray
> (773) 669-7717
>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>



-- 
Carl K

From brianhray at gmail.com  Wed Dec  5 20:32:44 2012
From: brianhray at gmail.com (Brian Ray)
Date: Wed, 5 Dec 2012 13:32:44 -0600
Subject: [Chicago] Speaker Needed
In-Reply-To: <CADmzSShoJ57SDyg7+6wyg7qrfJO9Ds7Swwz6WzgrDiOM-ip+sg@mail.gmail.com>
References: <CANKg38uwHFUgxom9TNG4W4_CNr9o-tPLvv24MAQcTaYP0tivEg@mail.gmail.com>
	<CADmzSShoJ57SDyg7+6wyg7qrfJO9Ds7Swwz6WzgrDiOM-ip+sg@mail.gmail.com>
Message-ID: <CANKg38tf6FiDsCm+ey_Az8v5Qp5SYGHG9Za2Akv_Oqb8MCh7fQ@mail.gmail.com>

I agree, but we have only one talk on schedule as before lunch.


On Wed, Dec 5, 2012 at 12:50 PM, Carl Karsten <carl at personnelware.com>wrote:

> I think the 2 talks we have are going to use up all of the meeting.
>
> On Wed, Dec 5, 2012 at 12:42 PM, Brian Ray <brianhray at gmail.com> wrote:
> > Anybody have something they want to present at next week's ChiPy. Get a
> > bunch of +1 and you are in the cool club.
> >
> >
> > --
> > Brian Ray
> > @brianray
> > (773) 669-7717
> >
> >
> > _______________________________________________
> > Chicago mailing list
> > Chicago at python.org
> > http://mail.python.org/mailman/listinfo/chicago
> >
>
>
>
> --
> Carl K
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>



-- 
Brian Ray
@brianray
(773) 669-7717
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From tal.liron at threecrickets.com  Wed Dec  5 20:33:59 2012
From: tal.liron at threecrickets.com (Tal Liron)
Date: Wed, 05 Dec 2012 13:33:59 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <CAHCs_raf1HL-x+Hsbbiw0dmK8TVf3bqO2dRgWHMH72CJ5YKRMA@mail.gmail.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
	<CAD+XWwpE=R-RPq=G8567JXxmNeBQY1nN=ZeYSkR5QtqayTKEUQ@mail.gmail.com>
	<CAAqWh+_hirD-rp4h9cJGyVon3M+f4zvafXSNWfkc5ZjO2hZKrw@mail.gmail.com>
	<CAHCs_raf1HL-x+Hsbbiw0dmK8TVf3bqO2dRgWHMH72CJ5YKRMA@mail.gmail.com>
Message-ID: <50BFA1A7.2030609@threecrickets.com>

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From tottinge at gmail.com  Wed Dec  5 20:42:17 2012
From: tottinge at gmail.com (Tim Ottinger)
Date: Wed, 5 Dec 2012 11:42:17 -0800
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <50BFA1A7.2030609@threecrickets.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
	<CAD+XWwpE=R-RPq=G8567JXxmNeBQY1nN=ZeYSkR5QtqayTKEUQ@mail.gmail.com>
	<CAAqWh+_hirD-rp4h9cJGyVon3M+f4zvafXSNWfkc5ZjO2hZKrw@mail.gmail.com>
	<CAHCs_raf1HL-x+Hsbbiw0dmK8TVf3bqO2dRgWHMH72CJ5YKRMA@mail.gmail.com>
	<50BFA1A7.2030609@threecrickets.com>
Message-ID: <CAN2NStnfPYLbZCF0beiYHe5A2Zvz6FpD-LM14kAbYmisqv7jUA@mail.gmail.com>

The original idea behind this, by the way, is quite beautiful. Look at
Bertrand Meyer's Uniform Access principle.
He's not wrong. He was never wrong.

I also agree that it _can_ be pretty important and useful.

But yes, it's mostly nonsense as practiced by java/c++/c# devs.


On Wed, Dec 5, 2012 at 11:33 AM, Tal Liron <tal.liron at threecrickets.com>wrote:

>  I just want to point out that in Java's case, it's not a matter of the
> language itself, but of conventions (the JavaBean standard) that grew on
> top of it. Java getters and setters really are 100% regular method calls,
> just with names that some mechanisms decide to introspect and use,
> sometimes in the terrible ways Sheila describes. :)
>
> In my talk about Genie/Vala (postponed to next month) you'll that getters
> and setters have a lot more mechanisms associated with them, and moreover
> have special limitations in terms of passing ownership of values. As it
> should be, really! A property should be *of* an object, and if you want to
> extract or inject data there are better paradigms.
>
> -Tal
>
>
> On 12/05/2012 10:34 AM, sheila miguez wrote:
>
> GRAR sometimes things are so annoying. why must we suffer so?
>
> This setter/getter stuff with cross cutting concerns or business
> logic, or what-have-you. ARG
>
> In java, sometimes I handle the validation stuff by making pojos with
> no setters, but they have builders. The builders provide the
> validation logic. In the past, when people have put logic in POJO
> getters and setters for things that get serialized and sent across the
> wire to a client, I've had reactions like being ape-shit insane due to
> the annoyances that can arise. I don't know, I guess you can move the
> ape-shit annoyedness by moving the logic to different parts and then
> other painful things will happen. With java, I have reacted to painful
> things by using god-awful builders. to avoid god-awful other things. I
> bet these are all smells happening due to design but also probably due
> to the language. not just the design. the design accrues to the
> language. HULK SMASH
>
>
>
> On Wed, Dec 5, 2012 at 10:22 AM, Philip Doctor <diomedestydeus at gmail.com> <diomedestydeus at gmail.com> wrote:
>
>  Tim,
> I agree that they get misused a lot (especially in C#) but I see it's very
> common to put validation in a set in c#.  So maybe syntactically it looks
> like you're just setting myCar.Speed to 60, but in myCar it's validating
> that Speed is not negative and it's less than MaxSpeed, etc etc.  I actually
> see this happening more and more in C# with data attributes in msft MVC.
> They have a public get/set and then an annotation that indicates things like
> not negative or required, etc etc.  I guess the caveat being that without a
> return value, your only way to really communicate that a value is out of
> bounds is with an exception throw, so your developers need to be comfortable
> with that kind of getter/setter feedback.
>
> My only point in this ramble being that public get/set, while often cargo
> culted in and bad style, can actually still be quite useful in c# and a
> little bit better than a public variable :)
>
>
>
>
> On Wed, Dec 5, 2012 at 10:15 AM, Brian Curtin <brian at python.org> <brian at python.org> wrote:
>
>  On Wed, Dec 5, 2012 at 9:38 AM, Malcolm Newsome<malcolm.newsome at gmail.com> <malcolm.newsome at gmail.com> wrote:
>
>  Additionally, a separate, but perhaps related question is that I have
> not
> seen public/private classes in Python.  How might this factor into the
> whole
> accessor scenario?  (Or, am I trying to relate two topics that have
> nothing
> to do with each other?)
>
>  There's no notion of private classes, but you could create private
> attributes on a class using a leading double underscore. I and most
> others don't recommend doing this.
>
> class MyClass:
>     def __private(self):
>         ...
>
> Python uses "name mangling" to hide the __private method, but nothing
> is stopping you from unmangling the name and just calling mangled
> names.
>
> Check out this first paragraph for more information:http://en.wikipedia.org/wiki/Python_syntax_and_semantics#Objects
> _______________________________________________
> Chicago mailing listChicago at python.orghttp://mail.python.org/mailman/listinfo/chicago
>
>
>
> _______________________________________________
> Chicago mailing listChicago at python.orghttp://mail.python.org/mailman/listinfo/chicago
>
>
>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>


-- 
Tim Ottinger, Sr. Consultant, Industrial Logic
-------------------------------------
http://www.industriallogic.com/
http://agileinaflash.com/
http://agileotter.blogspot.com/
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From shekay at pobox.com  Wed Dec  5 20:44:57 2012
From: shekay at pobox.com (sheila miguez)
Date: Wed, 5 Dec 2012 13:44:57 -0600
Subject: [Chicago] Get/Set/Accessors in Python?
In-Reply-To: <50BFA1A7.2030609@threecrickets.com>
References: <CAOeMDsWfCS0ALH-j=VS0rsWTGEcCCbEyVj+N22O42Z3MO7yuRA@mail.gmail.com>
	<CAD+XWwpE=R-RPq=G8567JXxmNeBQY1nN=ZeYSkR5QtqayTKEUQ@mail.gmail.com>
	<CAAqWh+_hirD-rp4h9cJGyVon3M+f4zvafXSNWfkc5ZjO2hZKrw@mail.gmail.com>
	<CAHCs_raf1HL-x+Hsbbiw0dmK8TVf3bqO2dRgWHMH72CJ5YKRMA@mail.gmail.com>
	<50BFA1A7.2030609@threecrickets.com>
Message-ID: <CAHCs_rbReazKYDK14Mf3S2adgPzWFOvoVDLGAm6qA1UAjca_VQ@mail.gmail.com>

Oh! I guess I missed that you postponed it. I thought you and Jordan
had talks next week.

On Wed, Dec 5, 2012 at 1:33 PM, Tal Liron <tal.liron at threecrickets.com> wrote:
> In my talk about Genie/Vala (postponed to next month)



-- 
sheila

From joegermuska at gmail.com  Wed Dec  5 16:54:47 2012
From: joegermuska at gmail.com (Joe Germuska)
Date: Wed, 5 Dec 2012 09:54:47 -0600
Subject: [Chicago] Venue and Talks found for Next Weeks Meeting
In-Reply-To: <CANKg38vwR9jj6mLeaBCu9C-3ZXviTv5-a7KSn8aBReJXN57B1w@mail.gmail.com>
References: <CANKg38vwR9jj6mLeaBCu9C-3ZXviTv5-a7KSn8aBReJXN57B1w@mail.gmail.com>
Message-ID: <DDF7D983-5821-457C-AF6C-861637A043E6@gmail.com>

Be sure to pop over to the OpenGovChicago holiday party also happening at 1871 next Thursday.

Also, I'm hiring two developers for a Knight News Challenge grant to build out an awesome web site to make Census data easier for journalists to use. It's pretty well documented out on the web, so if you're interested, do some googling and hit me up to tell me why you're someone who should be part of the team.

Joe

-- 
Joe Germuska
Joe at Germuska.com * http://blog.germuska.com * http://twitter.com/JoeGermuska    

"Science's job is to map our ignorance." --David Byrne


On Dec 5, 2012, at 7:50 AM, Brian Ray <brianhray at gmail.com> wrote:

> Really good news!
> 
> We have full sponsorship for next weekend's meeting at Excelerate Labs in 1871 from our friends over at SpotHero.
> 
> RSVP is now open -> http://chipy.org
> 
> I am working with Tal and Jordan on some better talk descriptions.
> 
> 
> -- 
> Brian Ray 
> @brianray
> (773) 669-7717
> 
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
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From brianhray at gmail.com  Wed Dec 12 04:11:27 2012
From: brianhray at gmail.com (Brian Ray)
Date: Tue, 11 Dec 2012 21:11:27 -0600
Subject: [Chicago] RSVP for Thursday's meeting
Message-ID: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>

If you think you might attend:

RSVP -> http://chipy.org/

The location is 1871 and we will be in Excelerate Labs.

This will help us order enough food/drink.

See you there!

-- 
Brian Ray
@brianray
(773) 669-7717
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From carl at personnelware.com  Wed Dec 12 09:24:47 2012
From: carl at personnelware.com (Carl Karsten)
Date: Wed, 12 Dec 2012 02:24:47 -0600
Subject: [Chicago] RSVP for Thursday's meeting
In-Reply-To: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>
References: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>
Message-ID: <CADmzSSg8ZuWRncEaxT1OvAWMFcge=YB-Oik34kdje+m1ry3jTw@mail.gmail.com>

On Tue, Dec 11, 2012 at 9:11 PM, Brian Ray <brianhray at gmail.com> wrote:
> we will be in Excelerate Labs.

What does that mean?

-- 
Carl K

From emperorcezar at gmail.com  Wed Dec 12 12:36:08 2012
From: emperorcezar at gmail.com (Cezar Jenkins)
Date: Wed, 12 Dec 2012 05:36:08 -0600
Subject: [Chicago] RSVP for Thursday's meeting
In-Reply-To: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>
References: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>
Message-ID: <D47C7C7E-2C31-4E53-950B-26DB488DD887@gmail.com>

Well, if you're using the RSVP to count buying beer, you should count me at two. <3

On Dec 11, 2012, at 9:11 PM, Brian Ray <brianhray at gmail.com> wrote:

> If you think you might attend:
> 
> RSVP -> http://chipy.org/
> 
> The location is 1871 and we will be in Excelerate Labs. 
> 
> This will help us order enough food/drink.
> 
> See you there!
> 
> -- 
> Brian Ray 
> @brianray
> (773) 669-7717
> 
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago

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From brian at python.org  Wed Dec 12 16:46:07 2012
From: brian at python.org (Brian Curtin)
Date: Wed, 12 Dec 2012 09:46:07 -0600
Subject: [Chicago] RSVP for Thursday's meeting
In-Reply-To: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>
References: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>
Message-ID: <CAD+XWwqihu_6Ss1rc_rNTtTwVp-A4ac9EVja6BDKAft97zJOng@mail.gmail.com>

On Tue, Dec 11, 2012 at 9:11 PM, Brian Ray <brianhray at gmail.com> wrote:
> If you think you might attend:
>
> RSVP -> http://chipy.org/
>
> The location is 1871 and we will be in Excelerate Labs.
>
> This will help us order enough food/drink.
>
> See you there!

Is the schedule up to date on the site?

From brianhray at gmail.com  Wed Dec 12 17:02:49 2012
From: brianhray at gmail.com (Brian Ray)
Date: Wed, 12 Dec 2012 10:02:49 -0600
Subject: [Chicago] RSVP for Thursday's meeting
In-Reply-To: <CADmzSSg8ZuWRncEaxT1OvAWMFcge=YB-Oik34kdje+m1ry3jTw@mail.gmail.com>
References: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>
	<CADmzSSg8ZuWRncEaxT1OvAWMFcge=YB-Oik34kdje+m1ry3jTw@mail.gmail.com>
Message-ID: <69369239-F1A7-4CE3-9A13-0A47F4404BBC@gmail.com>



On Dec 12, 2012, at 2:24 AM, Carl Karsten <carl at personnelware.com> wrote:

> On Tue, Dec 11, 2012 at 9:11 PM, Brian Ray <brianhray at gmail.com> wrote:
>> we will be in Excelerate Labs.
> 
> What does that mean?
> 

It in a different room, I will get you in touch with the host. 

From brianhray at gmail.com  Wed Dec 12 17:04:34 2012
From: brianhray at gmail.com (Brian Ray)
Date: Wed, 12 Dec 2012 10:04:34 -0600
Subject: [Chicago] RSVP for Thursday's meeting
In-Reply-To: <CAD+XWwqihu_6Ss1rc_rNTtTwVp-A4ac9EVja6BDKAft97zJOng@mail.gmail.com>
References: <CANKg38v=CF=ROJEOET9gU8Ks3LKWT7ZZAwUJkE1MQ1QFiOmoLA@mail.gmail.com>
	<CAD+XWwqihu_6Ss1rc_rNTtTwVp-A4ac9EVja6BDKAft97zJOng@mail.gmail.com>
Message-ID: <031064DB-175D-4D21-9559-AC8ED7D90201@gmail.com>



On Dec 12, 2012, at 9:46 AM, Brian Curtin <brian at python.org> wrote:

> On Tue, Dec 11, 2012 at 9:11 PM, Brian Ray <brianhray at gmail.com> wrote:
>> If you think you might attend:
>> 
>> RSVP -> http://chipy.org/
>> 
>> The location is 1871 and we will be in Excelerate Labs.
>> 
>> This will help us order enough food/drink.
>> 
>> See you there!
> 
> Is the schedule up to date on the site?
> 

I have been talking with one member about an imaging (PIL alternative) talk.

You got something, Brian?

From p.wallenberg at gmail.com  Wed Dec 19 23:02:46 2012
From: p.wallenberg at gmail.com (Paul Wallenberg)
Date: Wed, 19 Dec 2012 16:02:46 -0600
Subject: [Chicago] Java with some Python
Message-ID: <CAKLJN151tEp22xPkg_k8HDouCqXbt1EYj9riPSumRmc8H2uU=A@mail.gmail.com>

Hi ChiPy,
I am working with an association that is running into some problems with
extensions they have built on top of their Association Management System
(AMS). Their developer built a number of different web service extensions
in Python, Java, and PHP. Unfortunately, he has run into some work visa
issues and is not able to work until things get resolved. Thus, they need a
developer to step in to fill the void. There are numerous new development
initatives on the horizon, but a critical component of the job will be
supporting and enhancing already existing extensions. Documentation does
exist - however, the CTO is brand new and he wasn't able to give me a clear
indication of how reliable it is in its current state. The developer will
be available for any questions/issues that arise, but can't physically
perform any of the work. Their AMS is Personify which is .NET and sits
on MS SQL.

There's no firm end date or timeframe for the position, but they are
looking for someone to start as soon as possible (the new year would be
okay). The CTO also expressed interest in bringing someone on board that
would want to evaluate the position permanently. Therefore, this could work
for any freelance developers/consultants or someone looking to make a
career move. On contract, it would pay $45/hr and permanently, the salary
would be $80,000 per year.

If you're interested, feel free to reply to this email.

Happy holidays!

All my best,

Paul Wallenberg
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From danieltpeters at gmail.com  Fri Dec 21 23:05:03 2012
From: danieltpeters at gmail.com (Daniel Peters)
Date: Fri, 21 Dec 2012 16:05:03 -0600
Subject: [Chicago] any advice is appreciated
Message-ID: <CAHzLg+aoAwL4LdA0E6Q+HohMSADEeRxAcF3WeWLVjv2QVZCAmw@mail.gmail.com>

I'm at my wits end here.  This is a seemingly functional question


I've got two lists
 list1 is a list of compiled regular expression match objects *and possibly
*None values, culled from the text of an elementtree element
 list2 is a list of ElementTree elements  (each of which happens to be a
sibling to the element the regexs were taken from)
The length and order of the lists mirror each other, meaning, each are X
long and have the same ordering, since they both come from the same parent.

So, theoretically I should be able to conditionalize some kind of map-like
operation such that for each index of list2 i can stuff the corresponding
index from list1 into
the elements .text method *or* if the value is None (no regexs found), the
operation continues on maintaining order, simply skipping the None values
since that node was ill formed anyway.

I've tried list comprehensions, map itself and simply stacking for loops.
When I can get anything to work at all, i get the last item of the regex
list (list1) in *all* of the positions of list2.

Any help would be deeply appreciated.

also, thanks jeremy mcmillian.  Clearly I did *not* double down and write a
parser.  The sysadmin decided to install 2.6 for me, so I have elementtree
now.  Thanks again.
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From tal.liron at threecrickets.com  Fri Dec 21 23:08:56 2012
From: tal.liron at threecrickets.com (Tal Liron)
Date: Fri, 21 Dec 2012 16:08:56 -0600
Subject: [Chicago] Genie presentation coming up
Message-ID: <50D4DDF8.9060803@threecrickets.com>

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From thatmattbone at gmail.com  Fri Dec 21 23:13:58 2012
From: thatmattbone at gmail.com (Matt Bone)
Date: Fri, 21 Dec 2012 16:13:58 -0600
Subject: [Chicago] any advice is appreciated
In-Reply-To: <CAHzLg+aoAwL4LdA0E6Q+HohMSADEeRxAcF3WeWLVjv2QVZCAmw@mail.gmail.com>
References: <CAHzLg+aoAwL4LdA0E6Q+HohMSADEeRxAcF3WeWLVjv2QVZCAmw@mail.gmail.com>
Message-ID: <CAG0VBHunTAxL89HaZKG6_fXpX6tHFp_ZTpQWx5gLFhqg1QbUaA@mail.gmail.com>

You might be looking for zip().

for regex_thing, element in zip(list1, list2):
    if regex_thing is None:
        pass
    else:
        do_the_stuff_you_wanna_do()

--matt


On Fri, Dec 21, 2012 at 4:05 PM, Daniel Peters <danieltpeters at gmail.com>wrote:

> I'm at my wits end here.  This is a seemingly functional question
>
>
> I've got two lists
>  list1 is a list of compiled regular expression match objects *and
> possibly *None values, culled from the text of an elementtree element
>  list2 is a list of ElementTree elements  (each of which happens to be a
> sibling to the element the regexs were taken from)
> The length and order of the lists mirror each other, meaning, each are X
> long and have the same ordering, since they both come from the same parent.
>
> So, theoretically I should be able to conditionalize some kind of map-like
> operation such that for each index of list2 i can stuff the corresponding
> index from list1 into
> the elements .text method *or* if the value is None (no regexs found),
> the operation continues on maintaining order, simply skipping the None
> values since that node was ill formed anyway.
>
> I've tried list comprehensions, map itself and simply stacking for loops.
> When I can get anything to work at all, i get the last item of the regex
> list (list1) in *all* of the positions of list2.
>
> Any help would be deeply appreciated.
>
> also, thanks jeremy mcmillian.  Clearly I did *not* double down and write
> a parser.  The sysadmin decided to install 2.6 for me, so I have
> elementtree now.  Thanks again.
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>
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From danieltpeters at gmail.com  Fri Dec 21 23:21:17 2012
From: danieltpeters at gmail.com (Daniel Peters)
Date: Fri, 21 Dec 2012 16:21:17 -0600
Subject: [Chicago] any advice is appreciated
In-Reply-To: <CAG0VBHunTAxL89HaZKG6_fXpX6tHFp_ZTpQWx5gLFhqg1QbUaA@mail.gmail.com>
References: <CAHzLg+aoAwL4LdA0E6Q+HohMSADEeRxAcF3WeWLVjv2QVZCAmw@mail.gmail.com>
	<CAG0VBHunTAxL89HaZKG6_fXpX6tHFp_ZTpQWx5gLFhqg1QbUaA@mail.gmail.com>
Message-ID: <CAHzLg+ZMaEt8ZVxcgENvy6CEXr8Uwwng-g-pz9MT_XBVapNz2w@mail.gmail.com>

Matt Bone you a freaking a saint. that was exactly what i wanted.  holy
shit man.  I can't believe how long i spent trying to get that to work.

On Fri, Dec 21, 2012 at 4:13 PM, Matt Bone <thatmattbone at gmail.com> wrote:

> You might be looking for zip().
>
> for regex_thing, element in zip(list1, list2):
>     if regex_thing is None:
>         pass
>     else:
>         do_the_stuff_you_wanna_do()
>
> --matt
>
>
> On Fri, Dec 21, 2012 at 4:05 PM, Daniel Peters <danieltpeters at gmail.com>wrote:
>
>> I'm at my wits end here.  This is a seemingly functional question
>>
>>
>> I've got two lists
>>  list1 is a list of compiled regular expression match objects *and
>> possibly *None values, culled from the text of an elementtree element
>>  list2 is a list of ElementTree elements  (each of which happens to be a
>> sibling to the element the regexs were taken from)
>> The length and order of the lists mirror each other, meaning, each are X
>> long and have the same ordering, since they both come from the same parent.
>>
>> So, theoretically I should be able to conditionalize some kind of
>> map-like operation such that for each index of list2 i can stuff the
>> corresponding index from list1 into
>> the elements .text method *or* if the value is None (no regexs found),
>> the operation continues on maintaining order, simply skipping the None
>> values since that node was ill formed anyway.
>>
>> I've tried list comprehensions, map itself and simply stacking for
>> loops.  When I can get anything to work at all, i get the last item of the
>> regex list (list1) in *all* of the positions of list2.
>>
>> Any help would be deeply appreciated.
>>
>> also, thanks jeremy mcmillian.  Clearly I did *not* double down and
>> write a parser.  The sysadmin decided to install 2.6 for me, so I have
>> elementtree now.  Thanks again.
>>
>> _______________________________________________
>> Chicago mailing list
>> Chicago at python.org
>> http://mail.python.org/mailman/listinfo/chicago
>>
>>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>
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From livne at uchicago.edu  Fri Dec 21 23:36:23 2012
From: livne at uchicago.edu (Oren Livne)
Date: Fri, 21 Dec 2012 16:36:23 -0600
Subject: [Chicago] Segments in binary array
Message-ID: <50D4E467.4040709@uchicago.edu>

Dear All,

I have a binary numpy array A. I would like to find all ranges of 
consecutive 0's of length >= L in A. What would be an efficient 
implementation?

Thanks,
Oren

From kenschutte at gmail.com  Sat Dec 22 01:41:06 2012
From: kenschutte at gmail.com (Ken Schutte)
Date: Fri, 21 Dec 2012 18:41:06 -0600
Subject: [Chicago] Segments in binary array
In-Reply-To: <50D4E467.4040709@uchicago.edu>
References: <50D4E467.4040709@uchicago.edu>
Message-ID: <CAG=8SLpXBD7Z2e9q2uz8mUybiGnDw=sJHvNVRfNHJ9gLNSCs+g@mail.gmail.com>

I'm not sure if it's most efficient, but for something that doesn't
use a Python for-loop, you can do this:

WARNING: doesn't handle edge cases!  need to add a couple checks if
zero ranges go to first or last index.

import numpy as np

A = np.array([1,0,0,1,0,0,0,1,1,0,0,0,0,1,1,1])
L = 3

changes = np.where(np.diff(A == 0))[0]

starts   = changes[::2] + 1
lengths = changes[1::2] - changes[::2]

idx = np.where(lengths >= L)[0]   # ranges that are long enough

print "Ranges (start,len): ", zip(starts[idx], lengths[idx])





On Fri, Dec 21, 2012 at 4:36 PM, Oren Livne <livne at uchicago.edu> wrote:
> Dear All,
>
> I have a binary numpy array A. I would like to find all ranges of
> consecutive 0's of length >= L in A. What would be an efficient
> implementation?
>
> Thanks,
> Oren
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago

From carl at personnelware.com  Sat Dec 22 03:03:04 2012
From: carl at personnelware.com (Carl Karsten)
Date: Fri, 21 Dec 2012 20:03:04 -0600
Subject: [Chicago] Segments in binary array
In-Reply-To: <50D4E467.4040709@uchicago.edu>
References: <50D4E467.4040709@uchicago.edu>
Message-ID: <CADmzSSiTeYxVtHnbMNEFO6+e6PU=dnm7NiCWE2Dyo0=AhXNEDg@mail.gmail.com>

for L = 3, how many ranges are in:
0,0,0,0 ?

I can find 3:
1,2,3
1,2,3,4
  2,3,4

But if you are not allowed to reuse, then just the 1234 one is all there is.

but that still leaves 0,0,0,0,0,0
123 and 456 give you 2 ranges with no reuse.  Is that better than one long one?

On Fri, Dec 21, 2012 at 4:36 PM, Oren Livne <livne at uchicago.edu> wrote:
> Dear All,
>
> I have a binary numpy array A. I would like to find all ranges of
> consecutive 0's of length >= L in A. What would be an efficient
> implementation?
>
> Thanks,
> Oren
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago



-- 
Carl K

From maney at two14.net  Sat Dec 22 05:43:47 2012
From: maney at two14.net (Martin Maney)
Date: Fri, 21 Dec 2012 22:43:47 -0600
Subject: [Chicago] any advice is appreciated
In-Reply-To: <CAHzLg+ZMaEt8ZVxcgENvy6CEXr8Uwwng-g-pz9MT_XBVapNz2w@mail.gmail.com>
References: <CAHzLg+aoAwL4LdA0E6Q+HohMSADEeRxAcF3WeWLVjv2QVZCAmw@mail.gmail.com>
	<CAG0VBHunTAxL89HaZKG6_fXpX6tHFp_ZTpQWx5gLFhqg1QbUaA@mail.gmail.com>
	<CAHzLg+ZMaEt8ZVxcgENvy6CEXr8Uwwng-g-pz9MT_XBVapNz2w@mail.gmail.com>
Message-ID: <20121222044347.GB12807@furrr.two14.net>

On Fri, Dec 21, 2012 at 04:21:17PM -0600, Daniel Peters wrote:
> Matt Bone you a freaking a saint. that was exactly what i wanted.  holy
> shit man.  I can't believe how long i spent trying to get that to work.

Don't want to steal Matt's saintly thunder at all, but I have to admit
that where I, too, would have immediately thought of using zip back
when Python's functional aspect was new and exciting, today I'd just
write an old-fashioned index loop - for i in range(len(list1)). 

The wonderfullest thing about Python is that it doesn't force one way
of thinking about things - it's multiparadigmatic!

-- 
People make secure systems insecure because
insecure systems do what people want and
secure systems don't.  -- James Grimmelmann


From livne at uchicago.edu  Sun Dec 23 15:39:30 2012
From: livne at uchicago.edu (Oren Livne)
Date: Sun, 23 Dec 2012 08:39:30 -0600
Subject: [Chicago] Segments in binary array
In-Reply-To: <CADmzSSiTeYxVtHnbMNEFO6+e6PU=dnm7NiCWE2Dyo0=AhXNEDg@mail.gmail.com>
References: <50D4E467.4040709@uchicago.edu>
	<CADmzSSiTeYxVtHnbMNEFO6+e6PU=dnm7NiCWE2Dyo0=AhXNEDg@mail.gmail.com>
Message-ID: <50D717A2.6020904@uchicago.edu>

Dear Ken and Carl,

Thank you so much! I always get quality responses from this group!
I referred to maximal ranges. So there's a single range in both 0,0,0,0 
and 0,0,0,0,0,0.
Ken's solution, with boundary cases treatment, will work for me.

Happy Holidays,
Oren

On 12/21/2012 8:03 PM, Carl Karsten wrote:
> for L = 3, how many ranges are in:
> 0,0,0,0 ?
>
> I can find 3:
> 1,2,3
> 1,2,3,4
>    2,3,4
>
> But if you are not allowed to reuse, then just the 1234 one is all there is.
>
> but that still leaves 0,0,0,0,0,0
> 123 and 456 give you 2 ranges with no reuse.  Is that better than one long one?
>
> On Fri, Dec 21, 2012 at 4:36 PM, Oren Livne <livne at uchicago.edu> wrote:
>> Dear All,
>>
>> I have a binary numpy array A. I would like to find all ranges of
>> consecutive 0's of length >= L in A. What would be an efficient
>> implementation?
>>
>> Thanks,
>> Oren
>> _______________________________________________
>> Chicago mailing list
>> Chicago at python.org
>> http://mail.python.org/mailman/listinfo/chicago
>
>


-- 
A person is just about as big as the things that make him angry.


From randy7771026 at gmail.com  Sat Dec 22 21:49:33 2012
From: randy7771026 at gmail.com (Randy Baxley)
Date: Sat, 22 Dec 2012 14:49:33 -0600
Subject: [Chicago] Dr Chuck MOOC
Message-ID: <CAMqL=ihqG1Xyz29A=H+Nmt6r9mx0CixmrVRzV7ibuXKHrB4qZQ@mail.gmail.com>

http://online.dr-chuck.com/index.php

Dr. Chuck is a fun professor and I have already worked through his
pythonlearn.com basics so this should be fun.

Randy
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From randy7771026 at gmail.com  Wed Dec 26 00:43:32 2012
From: randy7771026 at gmail.com (Randy Baxley)
Date: Tue, 25 Dec 2012 17:43:32 -0600
Subject: [Chicago] Segments in binary array
In-Reply-To: <50D717A2.6020904@uchicago.edu>
References: <50D4E467.4040709@uchicago.edu>
	<CADmzSSiTeYxVtHnbMNEFO6+e6PU=dnm7NiCWE2Dyo0=AhXNEDg@mail.gmail.com>
	<50D717A2.6020904@uchicago.edu>
Message-ID: <CAMqL=iiWSQg-zNgVTrK9DjzRkcU-jo3oM=t8MqyegCbztih3tQ@mail.gmail.com>

Someday I will get to understand numpy, scipy, maximal, single range and
boundary cases.

Today though I am just hoping we can figure out why my emails are not
getting through to chipy.

Here is my latest fun with the Rice course for folks to try and crash or to
make comments on towards better programming practices.

http://www.codeskulptor.org/#user8-ffQ0VDPc4LqtZuS-3.py


On Sun, Dec 23, 2012 at 8:39 AM, Oren Livne <livne at uchicago.edu> wrote:

> Dear Ken and Carl,
>
> Thank you so much! I always get quality responses from this group!
> I referred to maximal ranges. So there's a single range in both 0,0,0,0
> and 0,0,0,0,0,0.
> Ken's solution, with boundary cases treatment, will work for me.
>
> Happy Holidays,
> Oren
>
> On 12/21/2012 8:03 PM, Carl Karsten wrote:
>
>> for L = 3, how many ranges are in:
>> 0,0,0,0 ?
>>
>> I can find 3:
>> 1,2,3
>> 1,2,3,4
>>    2,3,4
>>
>> But if you are not allowed to reuse, then just the 1234 one is all there
>> is.
>>
>> but that still leaves 0,0,0,0,0,0
>> 123 and 456 give you 2 ranges with no reuse.  Is that better than one
>> long one?
>>
>> On Fri, Dec 21, 2012 at 4:36 PM, Oren Livne <livne at uchicago.edu> wrote:
>>
>>> Dear All,
>>>
>>> I have a binary numpy array A. I would like to find all ranges of
>>> consecutive 0's of length >= L in A. What would be an efficient
>>> implementation?
>>>
>>> Thanks,
>>> Oren
>>> ______________________________**_________________
>>> Chicago mailing list
>>> Chicago at python.org
>>> http://mail.python.org/**mailman/listinfo/chicago<http://mail.python.org/mailman/listinfo/chicago>
>>>
>>
>>
>>
>
> --
> A person is just about as big as the things that make him angry.
>
> ______________________________**_________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/**mailman/listinfo/chicago<http://mail.python.org/mailman/listinfo/chicago>
>
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From livne at uchicago.edu  Thu Dec 27 16:35:42 2012
From: livne at uchicago.edu (Oren Livne)
Date: Thu, 27 Dec 2012 09:35:42 -0600
Subject: [Chicago] Multiple test suites in PyDev
Message-ID: <50DC6ACE.2050602@uchicago.edu>

Dear All,

I work in eclipse. I have 10 projects, each of which has a main test 
suite that I can run with a PyDev PyUnit run config. How can I create a 
super-test PyDev suite/run config that runs all of them with one click?

Thanks,
Oren

-- 
A person is just about as big as the things that make him angry.


From tal.liron at threecrickets.com  Thu Dec 27 22:51:59 2012
From: tal.liron at threecrickets.com (Tal Liron)
Date: Thu, 27 Dec 2012 15:51:59 -0600
Subject: [Chicago] Multiple test suites in PyDev
In-Reply-To: <50DC6ACE.2050602@uchicago.edu>
References: <50DC6ACE.2050602@uchicago.edu>
Message-ID: <50DCC2FF.4040203@threecrickets.com>

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From livne at uchicago.edu  Thu Dec 27 22:57:46 2012
From: livne at uchicago.edu (Oren Livne)
Date: Thu, 27 Dec 2012 15:57:46 -0600
Subject: [Chicago] Multiple test suites in PyDev
In-Reply-To: <50DCC2FF.4040203@threecrickets.com>
References: <50DC6ACE.2050602@uchicago.edu>
	<50DCC2FF.4040203@threecrickets.com>
Message-ID: <50DCC45A.8040601@uchicago.edu>

Dear Tal,

Thanks. I thought of creating the Test project, but don't know how to 
use the dynamicism to import everything. Is there a good tutorial on that?

Oren

On 12/27/2012 3:51 PM, Tal Liron wrote:
> I would create a new project called "Test", which just has one test 
> that uses Python magickal dynamism to import tests from all the other 
> projects.
>
> When it works I would share this snippet online so that others may enjoy.
>
> On 12/27/2012 09:35 AM, Oren Livne wrote:
>> Dear All,
>>
>> I work in eclipse. I have 10 projects, each of which has a main test 
>> suite that I can run with a PyDev PyUnit run config. How can I create 
>> a super-test PyDev suite/run config that runs all of them with one 
>> click?
>>
>> Thanks,
>> Oren
>>
>
>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago


-- 
A person is just about as big as the things that make him angry.

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From tal.liron at threecrickets.com  Thu Dec 27 23:07:28 2012
From: tal.liron at threecrickets.com (Tal Liron)
Date: Thu, 27 Dec 2012 16:07:28 -0600
Subject: [Chicago] Multiple test suites in PyDev
In-Reply-To: <50DCC45A.8040601@uchicago.edu>
References: <50DC6ACE.2050602@uchicago.edu>
	<50DCC2FF.4040203@threecrickets.com>
	<50DCC45A.8040601@uchicago.edu>
Message-ID: <50DCC6A0.5090506@threecrickets.com>

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From tottinge at gmail.com  Thu Dec 27 23:15:17 2012
From: tottinge at gmail.com (Tim Ottinger)
Date: Thu, 27 Dec 2012 16:15:17 -0600
Subject: [Chicago] Multiple test suites in PyDev
In-Reply-To: <50DCC6A0.5090506@threecrickets.com>
References: <50DC6ACE.2050602@uchicago.edu>
	<50DCC2FF.4040203@threecrickets.com>
	<50DCC45A.8040601@uchicago.edu>
	<50DCC6A0.5090506@threecrickets.com>
Message-ID: <CAN2NStmJGfyb3FoSwY0Otz5M9cd8uYr6SRZhmFmDOvNDiXQLsA@mail.gmail.com>

I always use sniffer/nose in a separate window, even when working in pydev,
so I'm not sure what the trick is.

Sniffer is wonderful. It runs all the tests any time a file changes, so you
always know (without asking) if your tests are green or red. Sadly, it
doesn't integrate with eclipse windows (that I know of).



On Thu, Dec 27, 2012 at 4:07 PM, Tal Liron <tal.liron at threecrickets.com>wrote:

>  I would first crawl all directories in your Eclipse projects root looking
> for tests. You can use the os.walk API. Note that if you have non-PyDev
> Eclipse projects, you can quickly dismiss them from your crawl: PyDev
> projects have a ".pydevproject" file in their root directory.
>
> Once you've found all files with the tests, you can import them by first
> programatically using __import__.
>
>
> On 12/27/2012 03:57 PM, Oren Livne wrote:
>
> Dear Tal,
>
> Thanks. I thought of creating the Test project, but don't know how to use
> the dynamicism to import everything. Is there a good tutorial on that?
>
> Oren
>
> On 12/27/2012 3:51 PM, Tal Liron wrote:
>
> I would create a new project called "Test", which just has one test that
> uses Python magickal dynamism to import tests from all the other projects.
>
> When it works I would share this snippet online so that others may enjoy.
>
> On 12/27/2012 09:35 AM, Oren Livne wrote:
>
> Dear All,
>
> I work in eclipse. I have 10 projects, each of which has a main test suite
> that I can run with a PyDev PyUnit run config. How can I create a
> super-test PyDev suite/run config that runs all of them with one click?
>
> Thanks,
> Oren
>
>
>
>
> _______________________________________________
> Chicago mailing listChicago at python.orghttp://mail.python.org/mailman/listinfo/chicago
>
>
>
> --
> A person is just about as big as the things that make him angry.
>
>
>
> _______________________________________________
> Chicago mailing listChicago at python.orghttp://mail.python.org/mailman/listinfo/chicago
>
>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>


-- 
Tim Ottinger, Sr. Consultant, Industrial Logic
-------------------------------------
http://www.industriallogic.com/
http://agileinaflash.com/
http://agileotter.blogspot.com/
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From scott.ferguson at vokalinteractive.com  Fri Dec 28 18:21:21 2012
From: scott.ferguson at vokalinteractive.com (Scott Ferguson)
Date: Fri, 28 Dec 2012 11:21:21 -0600
Subject: [Chicago] Python/Django position at VOKAL Interactive
Message-ID: <A38574D9E9694C109DF783D167B78327@vokalinteractive.com>

Hey guys, I wanted to ping this list to see if anybody in the Chicago area is interested in joining the VOKAL Interactive team. We're primarily a mobile shop but with an increasing amount of web work (both mobile and desktop) coming in. We bill ourselves as a Django shop but we use Python pretty liberally, so any experience with the language is desired. Typical work ranges from building API's for mobile apps to building full-fledged web applications.

We're located in River North, right off of the Chicago brown line station. The culture is close-knit. We'll often end days with beer, Bomberman or Minecraft (there's ping pong too). Basically a bunch of folks that love building software.

If you're interested, or know anybody who might be interested, please feel free to get in touch with me at scott.ferguson at vokalinteractive.com.

Scott Ferguson
Director of Engineering
VOKAL INTERACTIVE

m: +1.312.324.0829
e: scott.ferguson at vokalinteractive.com
sn: http://gplus.to/scottferguson



























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From randy7771026 at gmail.com  Sat Dec 29 17:46:01 2012
From: randy7771026 at gmail.com (Randy Baxley)
Date: Sat, 29 Dec 2012 10:46:01 -0600
Subject: [Chicago] Stopwatch game
Message-ID: <CAMqL=igJ2cMc65vC1Sdwn139ez3t_xmdoE4PRXAfLpLAP3R6Cw@mail.gmail.com>

http://www.codeskulptor.org/#user8-cZGUx5xm9N-4.py

Submitted for those who might be board and either play it or tell me how to
improve my programming practices.
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From jp at zavteq.com  Sun Dec 30 01:22:24 2012
From: jp at zavteq.com (JP Bader)
Date: Sat, 29 Dec 2012 18:22:24 -0600
Subject: [Chicago] Stopwatch game
In-Reply-To: <CAMqL=igJ2cMc65vC1Sdwn139ez3t_xmdoE4PRXAfLpLAP3R6Cw@mail.gmail.com>
References: <CAMqL=igJ2cMc65vC1Sdwn139ez3t_xmdoE4PRXAfLpLAP3R6Cw@mail.gmail.com>
Message-ID: <CAOL2cRRwQczbzwBC4GfQ002G6T6a86RpOhHxnYrddfpDKT1ceg@mail.gmail.com>

Where are the directions? I go to the site and hit play, but don't know
why...
On Dec 29, 2012 10:51 AM, "Randy Baxley" <randy7771026 at gmail.com> wrote:

> http://www.codeskulptor.org/#user8-cZGUx5xm9N-4.py
>
> Submitted for those who might be board and either play it or tell me how
> to improve my programming practices.
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>
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From diomedestydeus at gmail.com  Sun Dec 30 01:34:45 2012
From: diomedestydeus at gmail.com (Philip Doctor)
Date: Sat, 29 Dec 2012 18:34:45 -0600
Subject: [Chicago] Stopwatch game
In-Reply-To: <CAOL2cRRwQczbzwBC4GfQ002G6T6a86RpOhHxnYrddfpDKT1ceg@mail.gmail.com>
References: <CAMqL=igJ2cMc65vC1Sdwn139ez3t_xmdoE4PRXAfLpLAP3R6Cw@mail.gmail.com>
	<CAOL2cRRwQczbzwBC4GfQ002G6T6a86RpOhHxnYrddfpDKT1ceg@mail.gmail.com>
Message-ID: <CAAqWh+-qybTY3COJkc4aeCmnW2aUPnCePeCp3nVhfDgN=8tUJQ@mail.gmail.com>

Judging based on the code it's something about click stop on a multiple of
5 seconds exactly


On Sat, Dec 29, 2012 at 6:22 PM, JP Bader <jp at zavteq.com> wrote:

> Where are the directions? I go to the site and hit play, but don't know
> why...
> On Dec 29, 2012 10:51 AM, "Randy Baxley" <randy7771026 at gmail.com> wrote:
>
>> http://www.codeskulptor.org/#user8-cZGUx5xm9N-4.py
>>
>> Submitted for those who might be board and either play it or tell me how
>> to improve my programming practices.
>>
>> _______________________________________________
>> Chicago mailing list
>> Chicago at python.org
>> http://mail.python.org/mailman/listinfo/chicago
>>
>>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>
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From randy7771026 at gmail.com  Sun Dec 30 12:37:49 2012
From: randy7771026 at gmail.com (Randy Baxley)
Date: Sun, 30 Dec 2012 05:37:49 -0600
Subject: [Chicago] Stopwatch game
In-Reply-To: <CAOL2cRRwQczbzwBC4GfQ002G6T6a86RpOhHxnYrddfpDKT1ceg@mail.gmail.com>
References: <CAMqL=igJ2cMc65vC1Sdwn139ez3t_xmdoE4PRXAfLpLAP3R6Cw@mail.gmail.com>
	<CAOL2cRRwQczbzwBC4GfQ002G6T6a86RpOhHxnYrddfpDKT1ceg@mail.gmail.com>
Message-ID: <CAMqL=igqckmZrrtpjV-srhiR3Hg-_wDX22vHk4J1_PbE2iYcNQ@mail.gmail.com>

You score by stopping on five second intervals.


On Sat, Dec 29, 2012 at 6:22 PM, JP Bader <jp at zavteq.com> wrote:

> Where are the directions? I go to the site and hit play, but don't know
> why...
> On Dec 29, 2012 10:51 AM, "Randy Baxley" <randy7771026 at gmail.com> wrote:
>
>> http://www.codeskulptor.org/#user8-cZGUx5xm9N-4.py
>>
>> Submitted for those who might be board and either play it or tell me how
>> to improve my programming practices.
>>
>> _______________________________________________
>> Chicago mailing list
>> Chicago at python.org
>> http://mail.python.org/mailman/listinfo/chicago
>>
>>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> http://mail.python.org/mailman/listinfo/chicago
>
>
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From randy7771026 at gmail.com  Mon Dec 31 13:55:23 2012
From: randy7771026 at gmail.com (Randy Baxley)
Date: Mon, 31 Dec 2012 06:55:23 -0600
Subject: [Chicago] Stopwatch game
In-Reply-To: <CAOL2cRRwQczbzwBC4GfQ002G6T6a86RpOhHxnYrddfpDKT1ceg@mail.gmail.com>
References: <CAMqL=igJ2cMc65vC1Sdwn139ez3t_xmdoE4PRXAfLpLAP3R6Cw@mail.gmail.com>
	<CAOL2cRRwQczbzwBC4GfQ002G6T6a86RpOhHxnYrddfpDKT1ceg@mail.gmail.com>
Message-ID: <CAMqL=ihK-KxwyYy5kqEz_o9ETULRkzEd+_VW7ZhGF1iwRYijUw@mail.gmail.com>

OK, thank you for the gentle reminder to comment a bit more.

Here is a commented to the nth version.

Thank you again.

http://www.codeskulptor.org/#user8-EeiJ18rm3k-0.py


On Sat, Dec 29, 2012 at 6:22 PM, JP Bader <jp at zavteq.com> wrote:

> Where are the directions? I go to the site and hit play, but don't know
> why...
>
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