From brianhray at gmail.com  Mon Apr  6 17:22:17 2015
From: brianhray at gmail.com (Brian Ray)
Date: Mon, 6 Apr 2015 10:22:17 -0500
Subject: [Chicago] Paid Mentorship
Message-ID: <CANKg38sbWNyMKRGy9nkijwSCmWNN4MbD7dB9F-SfTMCSxZ8W0Q@mail.gmail.com>

Hi ChiPy:

I'm looking for a developer (or two) to be mentored by me for about 20hrs a
week starting ASAP - June (And then maybe a Jun-August session TBD). We
will meet 2x a week for 1hr and once in person every two weeks--in Chicago.
There will be some pay (small) involved and ChiPy will be compensated a
referral, so the whole group benefits.

Ideally, this is someone who wants a published widely available example
project to use a background for future engagements. I also promise I can
help that person find a job doing what they love after the engagement.

I am looking for (1) someone more front end (web UI UX...) and (2) someone
more back end (Django admin?) with some interest in data science. It would
really be nice if you have *something* to show even if it is small.

If you are already in the mentorship program, please clear your involvement
with T and/or your mentor/mentee(s) so there are no conflicts.

Please send me your name and what you want to do to brianhray at gmail.com.


-- 
Brian Ray
@brianray
(773) 669-7717
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From brianhray at gmail.com  Mon Apr  6 17:32:07 2015
From: brianhray at gmail.com (Brian Ray)
Date: Mon, 6 Apr 2015 10:32:07 -0500
Subject: [Chicago] Chicago Django Study Group
In-Reply-To: <CADQXWrVgSm8cKvuh9bo2CkXQc-jCAD38CbUJ2QY77FifZAp6=Q@mail.gmail.com>
References: <CADQXWrVgSm8cKvuh9bo2CkXQc-jCAD38CbUJ2QY77FifZAp6=Q@mail.gmail.com>
Message-ID: <CANKg38tpoDMQn=ayF2B4+XiaZsEACuFZst7g6wmL-j_OAPphvw@mail.gmail.com>

This too should consider becomming a ChiPy SIG. We can discuss ways to help.

Your thoughts, Lane?

On Monday, March 30, 2015, Lane Campbell <lane at strapr.com> wrote:

> Hello All,
>
> I wanted to share an update and link to the next meeting for all those who
> couldn't attend the first Chicago Django Study Group that was held
> Yesterday.
>
> *Background*: As a student learning Django I have been attending Chipy
> events, the Chicago Pythonistas events, and the Friendly Django 101 course
> by Richard Cornish.  The Chicago Django Study Group is here to help busy
> people dedicate a few hours a week to furthering our skills by learning or
> teaching Django.
>
> *Event Update*: Big thanks to all who came out and my apologies to those
> who have been emailing me about the problems getting into the building.  It
> was my first time trying to host something and I learned a lot.  I hope you
> haven't given up and are willing to try again in the future.
>
> *Attendance Issues*: We had about 15 people sign up for last weekends
> event but some folks ended up being turned away by building security.  I
> forgot to mention in my initial posting to tell building security that you
> are here to visit Lane Campbell when you show up.  If you have any issues
> my phone number is in my signature and now in the event information, feel
> free to call or text me.
>
> *Can you help*:  Why Sunday? I polled a select set of people who were
> interested in doing study groups and they agreed Sunday was the best day
> for them.  If you or anyone you know has room for a weekly event on Sunday
> and wants to host a group of students and mentors while we learn together
> please don't hesitate to reach out.
>
> *Meanwhile*: We will continue to host these once a week on Sunday's at
> noon since there seems to be decent interest.  If you want to join us for
> the next one please visit:
> http://www.eventbrite.com/e/chicago-django-study-group-april-5th-2015-tickets-16386027048
>
> I also created an open Google Group so we can discuss some of the stuff we
> talk about as we collaborate:
> https://groups.google.com/forum/#!forum/chicago-django-study-group
>
> *Become a Mentor*: A big shout out to Julian Eden who showed up and
> offered to help others!  Thank you for all your help!  We are could
> certainly use more mentors so if you or anyone you know might have some
> time please feel free to stop in and help.  To that end I am bcc'ing some
> people I know personally along with people that Shuvankar Halder put me in
> touch with.  I have bcc'ed you in case you are interested in helping with a
> location or stopping by and mentoring new developers.  Either way let me
> know if you want to help!
>
> Regards,
> Lane Campbell
> (312) 775-2632
>


-- 
Brian Ray
@brianray
(773) 669-7717
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From lane at strapr.com  Mon Apr  6 18:03:45 2015
From: lane at strapr.com (Lane Campbell)
Date: Mon, 6 Apr 2015 11:03:45 -0500
Subject: [Chicago] Chicago Django Study Group
In-Reply-To: <CANKg38tpoDMQn=ayF2B4+XiaZsEACuFZst7g6wmL-j_OAPphvw@mail.gmail.com>
References: <CADQXWrVgSm8cKvuh9bo2CkXQc-jCAD38CbUJ2QY77FifZAp6=Q@mail.gmail.com>
 <CANKg38tpoDMQn=ayF2B4+XiaZsEACuFZst7g6wmL-j_OAPphvw@mail.gmail.com>
Message-ID: <CADQXWrW2QaVYdBGnpH2tun9S8KFSeLoAHDf5W89wmmhHLF7UJg@mail.gmail.com>

Brian,

Happy to make it such.  I'll be throwing up a new event for next week on
Eventbrite.  It's going to be a recurring event at the same place, same
time for the foreseeable future.  Hopefully more folks can make it out.


Regards,
Lane Campbell
(312) 775-2632

On Mon, Apr 6, 2015 at 10:32 AM, Brian Ray <brianhray at gmail.com> wrote:

> This too should consider becomming a ChiPy SIG. We can discuss ways to
> help.
>
> Your thoughts, Lane?
>
>
> On Monday, March 30, 2015, Lane Campbell <lane at strapr.com> wrote:
>
>> Hello All,
>>
>> I wanted to share an update and link to the next meeting for all those
>> who couldn't attend the first Chicago Django Study Group that was held
>> Yesterday.
>>
>> *Background*: As a student learning Django I have been attending Chipy
>> events, the Chicago Pythonistas events, and the Friendly Django 101 course
>> by Richard Cornish.  The Chicago Django Study Group is here to help busy
>> people dedicate a few hours a week to furthering our skills by learning or
>> teaching Django.
>>
>> *Event Update*: Big thanks to all who came out and my apologies to those
>> who have been emailing me about the problems getting into the building.  It
>> was my first time trying to host something and I learned a lot.  I hope you
>> haven't given up and are willing to try again in the future.
>>
>> *Attendance Issues*: We had about 15 people sign up for last weekends
>> event but some folks ended up being turned away by building security.  I
>> forgot to mention in my initial posting to tell building security that you
>> are here to visit Lane Campbell when you show up.  If you have any issues
>> my phone number is in my signature and now in the event information, feel
>> free to call or text me.
>>
>> *Can you help*:  Why Sunday? I polled a select set of people who were
>> interested in doing study groups and they agreed Sunday was the best day
>> for them.  If you or anyone you know has room for a weekly event on Sunday
>> and wants to host a group of students and mentors while we learn together
>> please don't hesitate to reach out.
>>
>> *Meanwhile*: We will continue to host these once a week on Sunday's at
>> noon since there seems to be decent interest.  If you want to join us for
>> the next one please visit:
>> http://www.eventbrite.com/e/chicago-django-study-group-april-5th-2015-tickets-16386027048
>>
>> I also created an open Google Group so we can discuss some of the stuff
>> we talk about as we collaborate:
>> https://groups.google.com/forum/#!forum/chicago-django-study-group
>>
>> *Become a Mentor*: A big shout out to Julian Eden who showed up and
>> offered to help others!  Thank you for all your help!  We are could
>> certainly use more mentors so if you or anyone you know might have some
>> time please feel free to stop in and help.  To that end I am bcc'ing some
>> people I know personally along with people that Shuvankar Halder put me in
>> touch with.  I have bcc'ed you in case you are interested in helping with a
>> location or stopping by and mentoring new developers.  Either way let me
>> know if you want to help!
>>
>> Regards,
>> Lane Campbell
>> (312) 775-2632
>>
>
>
> --
> Brian Ray
> @brianray
> (773) 669-7717
>
>
> _______________________________________________
> Chicago mailing list
> Chicago at python.org
> https://mail.python.org/mailman/listinfo/chicago
>
>
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From doitwithdesign at gmail.com  Mon Apr  6 20:52:00 2015
From: doitwithdesign at gmail.com (Jay Kasturi)
Date: Mon, 6 Apr 2015 13:52:00 -0500
Subject: [Chicago] Paid Mentorship
In-Reply-To: <CANKg38sbWNyMKRGy9nkijwSCmWNN4MbD7dB9F-SfTMCSxZ8W0Q@mail.gmail.com>
References: <CANKg38sbWNyMKRGy9nkijwSCmWNN4MbD7dB9F-SfTMCSxZ8W0Q@mail.gmail.com>
Message-ID: <CAJxOqJCx-mMqEjDBfTpyU9N2M4YXPDk6cZ3XNc7s6cEC9WCoDg@mail.gmail.com>

Hi Brian! My name is Janani Kasturi (I go by Jay for short) and I believe
I'd be a perfect fit. My background is in front-end design/development,
with some Django experience, and have been taking online courses for data
science/statistics through Coursera to finish the certification course for
myself.

I'm originally from Austin, TX (definitely more of a Python town compared
to Chicago's Ruby), and have been freelancing on my own for a few years
now. I worked with a couple of people in your Ballers crew there at Chicon
Collective, Michael Henderson told me to ping him for an intro to you once
I got settled in:) I've been in and out of Chicago for the past couple of
years for contracting//family, and find myself at a point in my self-taught
path that I am in tremendous need of more guidance to pull together the
disparate tools that I've managed to learn on my own, especially in more
structured development environments and larger teams. A project like this
with mentorship built in would be the perfect grounding. I went to school
for history/linguistics (the Python/data science connection) but worked in
design/dev to help pay for things, and that's the hustle that stuck.

In Austin I also helped organize with PyLadies to put on workshops and and
Intro to Python classes using online course materials and exercises.
Unfortunately I barely missed the mentorship program cut-off here when I
moved.

Some work I've done in the recent past:

1) hackathon.iotwf.com - helped Cisco throw their huge hackathon here in
Chicago last fall for their IoT World Forum. I was in charge of building
the website, working with Cisco employees to provide various technical
resources for the teams, and contracted with Monkeybars
<http://monkeybars.io> to help coordinate and manage the project and event.

2) lightscamerahelp.org - a great organization in Austin that focuses on
documentary film driving social good.

If I sound like a good fit please do reach out to me! I'm a very motivated
learner, a thoughtful writer and am a student of my craft - given a chance
would absolutely jump at this opportunity to learn more.

thanks :)
~Jay

*c:* 704-236-5432
*e:* jay at doitwithdesign.com
    doitwithdesign at gmail.com
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From doitwithdesign at gmail.com  Mon Apr  6 20:52:38 2015
From: doitwithdesign at gmail.com (Jay Kasturi)
Date: Mon, 6 Apr 2015 13:52:38 -0500
Subject: [Chicago] Paid Mentorship
In-Reply-To: <CAJxOqJCx-mMqEjDBfTpyU9N2M4YXPDk6cZ3XNc7s6cEC9WCoDg@mail.gmail.com>
References: <CANKg38sbWNyMKRGy9nkijwSCmWNN4MbD7dB9F-SfTMCSxZ8W0Q@mail.gmail.com>
 <CAJxOqJCx-mMqEjDBfTpyU9N2M4YXPDk6cZ3XNc7s6cEC9WCoDg@mail.gmail.com>
Message-ID: <CAJxOqJCbhzL9eJ_d5fUN4o3rUMDZqtEM0SXG7aeFf2Wi6a1XjQ@mail.gmail.com>

Argh really sorry guys ><, Brian I'll just send this to your email.

On Mon, Apr 6, 2015 at 1:52 PM, Jay Kasturi <doitwithdesign at gmail.com>
wrote:

> Hi Brian! My name is Janani Kasturi (I go by Jay for short) and I believe
> I'd be a perfect fit. My background is in front-end design/development,
> with some Django experience, and have been taking online courses for data
> science/statistics through Coursera to finish the certification course for
> myself.
>
> I'm originally from Austin, TX (definitely more of a Python town compared
> to Chicago's Ruby), and have been freelancing on my own for a few years
> now. I worked with a couple of people in your Ballers crew there at Chicon
> Collective, Michael Henderson told me to ping him for an intro to you once
> I got settled in:) I've been in and out of Chicago for the past couple of
> years for contracting//family, and find myself at a point in my self-taught
> path that I am in tremendous need of more guidance to pull together the
> disparate tools that I've managed to learn on my own, especially in more
> structured development environments and larger teams. A project like this
> with mentorship built in would be the perfect grounding. I went to school
> for history/linguistics (the Python/data science connection) but worked in
> design/dev to help pay for things, and that's the hustle that stuck.
>
> In Austin I also helped organize with PyLadies to put on workshops and and
> Intro to Python classes using online course materials and exercises.
> Unfortunately I barely missed the mentorship program cut-off here when I
> moved.
>
> Some work I've done in the recent past:
>
> 1) hackathon.iotwf.com - helped Cisco throw their huge hackathon here in
> Chicago last fall for their IoT World Forum. I was in charge of building
> the website, working with Cisco employees to provide various technical
> resources for the teams, and contracted with Monkeybars
> <http://monkeybars.io> to help coordinate and manage the project and
> event.
>
> 2) lightscamerahelp.org - a great organization in Austin that focuses on
> documentary film driving social good.
>
> If I sound like a good fit please do reach out to me! I'm a very motivated
> learner, a thoughtful writer and am a student of my craft - given a chance
> would absolutely jump at this opportunity to learn more.
>
> thanks :)
> ~Jay
>
> *c:* 704-236-5432
> *e:* jay at doitwithdesign.com
>     doitwithdesign at gmail.com
>



-- 

~Jay

*w:* doitwithdesign.com
*c:* 704-236-5432
*e:* jay at doitwithdesign.com
    doitwithdesign at gmail.com
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From lane at strapr.com  Tue Apr  7 20:47:02 2015
From: lane at strapr.com (Lane Campbell)
Date: Tue, 7 Apr 2015 13:47:02 -0500
Subject: [Chicago] Chicago Django Study Group
In-Reply-To: <CADQXWrVgSm8cKvuh9bo2CkXQc-jCAD38CbUJ2QY77FifZAp6=Q@mail.gmail.com>
References: <CADQXWrVgSm8cKvuh9bo2CkXQc-jCAD38CbUJ2QY77FifZAp6=Q@mail.gmail.com>
Message-ID: <CADQXWrXC3j+YtMb0aucdp-s_00hpm+7xn2vfAtHtaDYzDgKNWQ@mail.gmail.com>

Hello All,

I really appreciate everyone who reached out to me following the first
email I sent out.  We had a small showing last weekend of people who could
make it (happens when its a holiday).  We are planning to do it again this
weekend.

If you are interested please take a moment and RSVP for the event so we
have a better idea on who will be attending:
https://www.eventbrite.com/e/chicago-django-study-group-tickets-16487108385


Regards,
Lane Campbell
(312) 775-2632

On Mon, Mar 30, 2015 at 4:35 PM, Lane Campbell <lane at strapr.com> wrote:

> Hello All,
>
> I wanted to share an update and link to the next meeting for all those who
> couldn't attend the first Chicago Django Study Group that was held
> Yesterday.
>
> *Background*: As a student learning Django I have been attending Chipy
> events, the Chicago Pythonistas events, and the Friendly Django 101 course
> by Richard Cornish.  The Chicago Django Study Group is here to help busy
> people dedicate a few hours a week to furthering our skills by learning or
> teaching Django.
>
> *Event Update*: Big thanks to all who came out and my apologies to those
> who have been emailing me about the problems getting into the building.  It
> was my first time trying to host something and I learned a lot.  I hope you
> haven't given up and are willing to try again in the future.
>
> *Attendance Issues*: We had about 15 people sign up for last weekends
> event but some folks ended up being turned away by building security.  I
> forgot to mention in my initial posting to tell building security that you
> are here to visit Lane Campbell when you show up.  If you have any issues
> my phone number is in my signature and now in the event information, feel
> free to call or text me.
>
> *Can you help*:  Why Sunday? I polled a select set of people who were
> interested in doing study groups and they agreed Sunday was the best day
> for them.  If you or anyone you know has room for a weekly event on Sunday
> and wants to host a group of students and mentors while we learn together
> please don't hesitate to reach out.
>
> *Meanwhile*: We will continue to host these once a week on Sunday's at
> noon since there seems to be decent interest.  If you want to join us for
> the next one please visit:
> http://www.eventbrite.com/e/chicago-django-study-group-april-5th-2015-tickets-16386027048
>
> I also created an open Google Group so we can discuss some of the stuff we
> talk about as we collaborate:
> https://groups.google.com/forum/#!forum/chicago-django-study-group
>
> *Become a Mentor*: A big shout out to Julian Eden who showed up and
> offered to help others!  Thank you for all your help!  We are could
> certainly use more mentors so if you or anyone you know might have some
> time please feel free to stop in and help.  To that end I am bcc'ing some
> people I know personally along with people that Shuvankar Halder put me in
> touch with.  I have bcc'ed you in case you are interested in helping with a
> location or stopping by and mentoring new developers.  Either way let me
> know if you want to help!
>
> Regards,
> Lane Campbell
> (312) 775-2632
>
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From adam at adamforsyth.net  Tue Apr  7 20:52:29 2015
From: adam at adamforsyth.net (Adam Forsyth)
Date: Tue, 7 Apr 2015 14:52:29 -0400
Subject: [Chicago] April Meeting Canceled for PyCon & Mailing List for
 PyCon Attendees from Chicago
In-Reply-To: <CABrs+N8zVYvXV7fi=QS3HaYEfYWc8SArzGC9xUcvxqea0V5shA@mail.gmail.com>
References: <CABrs+N8zVYvXV7fi=QS3HaYEfYWc8SArzGC9xUcvxqea0V5shA@mail.gmail.com>
Message-ID: <CABrs+N-iiNoQVGq+Ui3mQB4a0CG7uBbj=GvJFc_VAJ=1dKw5_Q@mail.gmail.com>

Final reminder, there will be no meeting this month because of PyCon.

Details about the Chicago / PyCon mailing list are below if you're here in
Montreal.

On Thu, Mar 19, 2015 at 8:45 PM, Adam Forsyth <adam at adamforsyth.net> wrote:

> Hi Everyone! The April meeting is canceled because it falls during PyCon
> again this year, and so may of us are attending.
>
> I've started a mailing list for people going to ChiPy from Chicago. To
> sign up, visit https://groups.google.com/forum/#!forum/pycon-2015-chicago
> or email pycon-2015-chicago+subscribe at googlegroups.com.
> To send an email to the group, it's pycon-2015-chicago at googlegroups.com.
>
> If you've got any questions, don't hesitate to ask!
>
> See you in Montreal,
> Adam & The ChiPy Organizers
>
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From brianhray at gmail.com  Wed Apr  8 19:19:40 2015
From: brianhray at gmail.com (Brian Ray)
Date: Wed, 8 Apr 2015 12:19:40 -0500
Subject: [Chicago] Paid Mentorship
In-Reply-To: <CANKg38sbWNyMKRGy9nkijwSCmWNN4MbD7dB9F-SfTMCSxZ8W0Q@mail.gmail.com>
References: <CANKg38sbWNyMKRGy9nkijwSCmWNN4MbD7dB9F-SfTMCSxZ8W0Q@mail.gmail.com>
Message-ID: <CANKg38vU+BAU+80LOP_kTzqa5qGmUphsg4E+029nu7je44f2zw@mail.gmail.com>

Hey all:

I reviewed all responders in order of response and picked first 3 who were
best fits. Let's do this again very soon.

Meanwhile, i tip my hat to T's very successful mentorship program that
remains in full swing. Keep your eyes/ears open for the next batch a
few months away.

Brian


On Monday, April 6, 2015, Brian Ray <brianhray at gmail.com> wrote:

> Hi ChiPy:
>
> I'm looking for a developer (or two) to be mentored by me for about 20hrs
> a week starting ASAP - June (And then maybe a Jun-August session TBD). We
> will meet 2x a week for 1hr and once in person every two weeks--in Chicago.
> There will be some pay (small) involved and ChiPy will be compensated a
> referral, so the whole group benefits.
>
> Ideally, this is someone who wants a published widely available example
> project to use a background for future engagements. I also promise I can
> help that person find a job doing what they love after the engagement.
>
> I am looking for (1) someone more front end (web UI UX...) and (2) someone
> more back end (Django admin?) with some interest in data science. It would
> really be nice if you have *something* to show even if it is small.
>
> If you are already in the mentorship program, please clear your
> involvement with T and/or your mentor/mentee(s) so there are no conflicts.
>
> Please send me your name and what you want to do to brianhray at gmail.com
> <javascript:_e(%7B%7D,'cvml','brianhray at gmail.com');>.
>
>
> --
> Brian Ray
> @brianray
> (773) 669-7717
>


-- 
Brian Ray
@brianray
(773) 669-7717
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From d-lewit at neiu.edu  Wed Apr  8 19:21:11 2015
From: d-lewit at neiu.edu (Lewit, Douglas)
Date: Wed, 8 Apr 2015 12:21:11 -0500
Subject: [Chicago] Can't make it this evening.
Message-ID: <CAPdZZGw-9HqZE1Q8QmJCqP50mGhwOBPgNkAimEKZc50mGQOSCQ@mail.gmail.com>

Hi guys,

I'm signed up for the meeting tonight (Wednesday the 8th of April) at the
Pumping Station, but can't make it because of illness in the family.
Sorry, but I'll do my best to attend one of the meetings very soon.  I'm
sure it's a great way to meet others who are interested in Python.  Between
work, school and family I just don't always have the time for extra stuff.
I hope you guys have a great meeting this evening.

All my best,

Douglas.
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From d-lewit at neiu.edu  Sat Apr 11 10:44:36 2015
From: d-lewit at neiu.edu (Lewit, Douglas)
Date: Sat, 11 Apr 2015 03:44:36 -0500
Subject: [Chicago] Counting recursive calls.
Message-ID: <CAPdZZGxzA3tG92Oe8mYKC8Skgqx-J4fp0cXo49z9DfMaGy6qaQ@mail.gmail.com>

Hi everyone,

If you've got time could you run my TreeNode_Main.py script.  I think it
runs just fine, but I'm wondering about the number of recursive calls to
generate the binary tree.  That number seems rather large, especially when
you consider that Python's default recursion limit is 1000.  (Although in
my code I change the recursion limit to 2000.)  If my number of recursion
calls is correct, that means then that there's a difference between "number
of recursive calls" and "recursion depth".  But..... what's the
difference?  I thought that "recursion depth" really refers to the number
of recursive calls.....the number of times that a method is called, or.....
the number of times that a method has to call itself?  I'm a little
confused!

Thanks for the advice.

Best,

Douglas.
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From proba at allstate.com  Mon Apr 13 18:57:50 2015
From: proba at allstate.com (Robare, Phillip (Randstant))
Date: Mon, 13 Apr 2015 16:57:50 +0000
Subject: [Chicago] Counting recursive calls.
In-Reply-To: <CAPdZZGxzA3tG92Oe8mYKC8Skgqx-J4fp0cXo49z9DfMaGy6qaQ@mail.gmail.com>
References: <CAPdZZGxzA3tG92Oe8mYKC8Skgqx-J4fp0cXo49z9DfMaGy6qaQ@mail.gmail.com>
Message-ID: <50869A74BA4F07468AD797C9BFF1FE3E04303E68@A0185-XPO1026-C.ad.allstate.com>

Douglas,
Depth of recursion is the height of the stack of recursive calls.  In a tree traversal it would only be equal to the number of recursive calls only if the tree at every level has only one child.  Depth of recursion is important in a non-tail-recursive language where the local variables from the caller are kept in memory until the callee returns. (See the Wikipedia article on Tail Calls https://en.wikipedia.org/wiki/Tail_call for a more detailed discussion than you are ready for.)  If you go down one branch and return, the memory used by the calls made when you went down the branch is released when you get back.
Your tree class (called Node) mixes up structure and operations.  For instance add(), size(), and height() are good structure operations. The InOrder and preOrder functions are operations done to a particular tree and could be moved into another class with a has-a relationship to the tree structure.  That is, the TraversalTree class would be passed a Tree in its __init__() function.  In modern Python the traversal functions should be written as generators that return a node.  This would result in your addUp function collapsing down to a one liner that just is a function of a particular tree.
def addUp(traversal_tree_instance):
return sum([node.parameter for node in traversal_tree_instance.inOrder()])
This obviously adds up the entire tree instead of doing what your function does, decorating each node of the tree with the sum of its sub-tree.  I will leave it up to you to make the modifications that will visit each node and add the derived value.   Since the value is derived, and not fundamental, you should consider how you might separate this aspect from the elements of a tree that are fundamental.  (Think a bit before reading on?)

A common way to do this is have a Node class that is outside of the Tree class but has operations that the tree uses, such as left(), and right(). The terminal would be a Leaf class instance that would not have a left or right operation but instead have a value() call.  If you want to store some derived property the Node can also have a value().  Think about how you would redo your tree to store strings instead of integers.
Your FormattableInt class is unneeded, and much too Java-like. The ability to format int?s with comma grouping is already in the language.
(https://docs.python.org/2.7/library/string.html#formatspec)
Using the comma as a thousand?s separator:
>>> '{:,}'.format(1234567890)
'1,234,567,890'

Even if that didn?t exist, something more pythonic could be cobbled together with lists, generators and slicing.
>>> def by_3s(int_str):
...     a=int_str
...     while a:
...         yield(a[-3:]) # return the last 3 characters
...         a = a[:-3] # chop off the last 3 and loop again
...
>>> a=1234567890
>>> int_str = str(a)
>>> ','.join(reversed(list(by_3s(int_str))))
'1,234,567,890'

I hope you find this helpful and educational.  You have obviously worked hard on your code and the struggle is where you do your learning.

Phil Robare
probare at rcnchicago.com

From: Chicago [mailto:chicago-bounces+proba=allstate.com at python.org] On Behalf Of Lewit, Douglas
Sent: Saturday, April 11, 2015 3:45 AM
To: The Chicago Python Users Group
Subject: [Chicago] Counting recursive calls.

Hi everyone,

If you've got time could you run my TreeNode_Main.py script.  I think it runs just fine, but I'm wondering about the number of recursive calls to generate the binary tree.  That number seems rather large, especially when you consider that Python's default recursion limit is 1000.  (Although in my code I change the recursion limit to 2000.)  If my number of recursion calls is correct, that means then that there's a difference between "number of recursive calls" and "recursion depth".  But..... what's the difference?  I thought that "recursion depth" really refers to the number of recursive calls.....the number of times that a method is called, or..... the number of times that a method has to call itself?  I'm a little confused!

Thanks for the advice.

Best,

Douglas.
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From lane at strapr.com  Sat Apr 18 20:21:28 2015
From: lane at strapr.com (Lane Campbell)
Date: Sat, 18 Apr 2015 13:21:28 -0500
Subject: [Chicago] Chicago Django Study Group
Message-ID: <CADQXWrW7LUP=yOhAbmJtt5C_LsuoWsFEhEFJt4aRmh3WjH=MHg@mail.gmail.com>

Hello All,

Just a reminder that we are meeting again tomorrow at noon.  We have one
confirmed tutor who is a professional developer stopping in.  Please
register and follow the instructions on the eventbrite page by telling
security you are here to see me if you stop in.

https://www.eventbrite.com/e/chicago-django-study-group-tickets-16488972962

Regards,
Lane Campbell
(312) 775-2632
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From joe.jasinski at gmail.com  Mon Apr 20 02:26:48 2015
From: joe.jasinski at gmail.com (Joe Jasinski)
Date: Sun, 19 Apr 2015 19:26:48 -0500
Subject: [Chicago] ChiPy May Meeting: Ultimate Language Shootout
Message-ID: <CACdfcwVR2J0KvH-s5_6PC+UGf2wkwUPzfh2VWvMfk_BpqbhZ0w@mail.gmail.com>

ChiPy May Meeting: Ultimate Language Shootout
[image: Chipy Meeting: Ultimate Language Shootout]
Pick any programming language. Present and introduce the language at the
May 14th ChiPy meeting. Do at least one comparison to Python. Talks should
be approximately 5 minutes.  Audience members will vote on their favorite
presentation and the winner takes home $100s cash, thanks to Chicago Python
User Group (http://chipy.org).
*Submit your talk proposal here:*
http://www.chipy.org/meetings/topics/propose
Put the language name in title and description.
*Want to Watch? *
Just RSVP on ChiPy's website: http://www.chipy.org  <http://www.chipy.org>
or via our Meetup group:  http://www.meetup.com/_ChiPy_/events/221954090/
It is FREE to watch. Food and drink will be provided.
*Event Summary: *
ChiPy's Ultimate Language Shootout
*When:* Thursday May 14th at 7pm
*Where: *
   The Franklin Center (Compliments of Computer Futures)
   2nd floor (follow signs)
   227 West Monroe Street
   Chicago IL 60606
If you'd like to help sponsor this Meetup, please contact us at
http://www.chipy.org/contact/ or reach out to any of the organizers.
*About ChiPy:*
Visit our website at: http://www.chipy.org/
ChiPy is Chicago's official Python Programming Language user group and is
responsible for holding well-attended monthly meetings, for running a very
successful Python mentorship program, and for driving numerous other
Python-related events.
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From brianhray at gmail.com  Tue Apr 21 22:14:15 2015
From: brianhray at gmail.com (Brian Ray)
Date: Tue, 21 Apr 2015 16:14:15 -0400
Subject: [Chicago] Site Login
Message-ID: <CANKg38usfuBDwh7ikfD5KEA1pB24C1Xp+v=BU9gFr5dh9pR7Ag@mail.gmail.com>

The site login issue (described here
https://github.com/chicagopython/chipy.org/issues/93) has been resolved.

You can now log in and propose your language talk.

This ultimate language shootout meeting will be the best meeting ever!

-- 
Brian Ray
@brianray
(773) 669-7717
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From flaniganswake at gmail.com  Thu Apr 23 19:25:35 2015
From: flaniganswake at gmail.com (Patrick Flanigan)
Date: Thu, 23 Apr 2015 12:25:35 -0500
Subject: [Chicago] contract opportunity
Message-ID: <CAHw1vTdf=oHctQsuhwmiOyT4gPQ++uLYzKYXWcATDpKxNxXWtA@mail.gmail.com>

Brian Ray recommended I post this urgent short-term contract opportunity.

It is a python/django/mysql app that I built a few years ago. There is
someone interested in adding an API to use for a trimmed down version for
mobile devices. The work is just the API - no frontend work. The existing
website is http://assess.skillbott.com/

It requires about 20-30 hours work - but I don't have the time to do it. I
would be willing to consult since I built everything originally. They want
it done by May 4th if possible.

Please let me know if anyone is interested.

Patrick
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From dinaldo at gmail.com  Tue Apr 28 19:37:49 2015
From: dinaldo at gmail.com (Don Sheu)
Date: Tue, 28 Apr 2015 10:37:49 -0700
Subject: [Chicago] A Call to Support Nepal: Earthquake Emergency Relief Fund
Message-ID: <CACvX9QCBD+niZcU-Wj75mmMJP03XoKRPOD65fmRWxnxqoU3+oQ@mail.gmail.com>

This message is from Prerak a friend of mine and a native of Nepal. He?s in
Seattle as a masters student in CS, and he is a talented Pythonista and
data nerd. Right now his nation needs everybody?s help.

Hi Everyone,

My name is Prerak Pradhan and I am an MSIM student at the University of
Washignton. I am from Nepal and as you may have heard my country has
suffered an unimaginable tragedy. The earthquake left my home town, the
capital, Kathmandu, in ruins with about 1000 estimated deaths there and
about 4700 dead throughout the country. The neighborhood that I grew up in
is now gone and my own house is at the moment unsafe for living.

As you can imagine it has been a very difficult time for me.  The past few
days for me have been nothing short of a very bad nightmare. Being helpless
as your loved ones suffer is probably the worst feeling one can have.

The Nepalese Student Association at the University of Washington is raising
funds to support the relief effort in the remote villages of Gorkha, Nepal
(near epicenter of the earthquake). Any financial help that you provide
will make an immediate difference to the lives of the survivors. The funds
will be disbursed through a local relief agency Bhume JanaKalyan Samaj, a
non-profit organization based in Kathmandu and actively working in the
highly impacted villages in Gorkha, Nepal.

*You can donate by either going to **Nepalese Student Association*
<http://t.signauxdeux.com/e1t/c/5/f18dQhb0SmZ58dDMPbW2n0x6l2B9nMJW7sM9dn7dK_MMdBzM2-04?t=http%3A%2F%2Fstudents.washington.edu%2Fnepaluw%2F&si=5881429413068800&pi=3b27ee03-258a-44ca-8d19-cb94eb66bbca>*
or
can go directly to the funding page **here
<http://t.signauxdeux.com/e1t/c/5/f18dQhb0SmZ58dDMPbW2n0x6l2B9nMJW7sM9dn7dK_MMdBzM2-04?t=http%3A%2F%2Figg.me%2Fat%2FaPgvhAH-RcM%2Fx%2F10642662&si=5881429413068800&pi=3b27ee03-258a-44ca-8d19-cb94eb66bbca>.*

Your contribution will be used to house Nepalese in tents, provide my
people warmth with space blankets, and nourish them with food that will be
distributed to the people in the affected areas. A portion of the funds
will also go towards rebuilding the region.

By donating to either of these funds you will help my nation cope with the
aftermath of this disaster. Every dollar counts and no financial support is
small.

Please feel free to contact me at prerak at uw.edu if you have any queries.

Please circulate this information to anybody who you think might offer some
help.

Thank You,

Prerak Pradhan

-- 
Don Sheu
(312) 880-9389

  *Apply to join us at www.openforcetour.org
<http://www.openforcetour.org/>*

*CONFIDENTIALITY NOTICE*: *The information contained in this message may be
protected trade secrets or protected by applicable intellectual property
laws of the United States and International agreements. If you believe that
it has been sent to you in error, do not read it. Please immediately reply
to the sender that you have received the message in error. Then delete it.
Thank you.*
?
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