From nludban at columbus.rr.com  Tue Jan  3 13:41:40 2017
From: nludban at columbus.rr.com (Neil Ludban)
Date: Tue, 3 Jan 2017 13:41:40 -0500
Subject: [CentralOH] micropython
Message-ID: <20170103134140.7b2b102d7561e1948880a4d6@columbus.rr.com>

Just found both of these at MicroCenter and brought them home:

https://www.amazon.com/Python-Microcontrollers-Getting-Started-MicroPython/dp/1259644537

http://linksprite.com/wiki/index.php5?title=LinkNode_D1

From winningham at gmail.com  Tue Jan  3 20:56:19 2017
From: winningham at gmail.com (Thomas Winningham)
Date: Tue, 3 Jan 2017 20:56:19 -0500
Subject: [CentralOH] micropython
In-Reply-To: <20170103134140.7b2b102d7561e1948880a4d6@columbus.rr.com>
References: <20170103134140.7b2b102d7561e1948880a4d6@columbus.rr.com>
Message-ID: <CAJShLf-dk6bk2B5sADTG_w6C0KTBzTr1ksV-rhX2VOjxuBpN7A@mail.gmail.com>

So I messed with MicroPython a ton on a NodeMCU board (also an ESP8266) ...
It was an absolute blast. Unfortunately, after much head scratching I think
I ultimately had memory fragmentation errors from trying simply to do too
much dynamically in Python... or at least I *think* that was the issue. It
would simply reset after 10 minutes of working? I since then rewrote
everything I was doing (two servos and two steppers) in Arduino code using
PlatformIO to manage the project, and everything works a lot better. I'm
still using a lot of Python to interact with the thing though.

I do think that the MicroPython project is insanely cool, and the code runs
so quickly. Even the Unix port is fun to play with for sure. I think they
list their ESP8266 support as experimental at the moment, so I just wanted
to chime in with a heads up if you find yourself beating your head against
the wall, it may not be your fault.

On Tue, Jan 3, 2017 at 1:41 PM, Neil Ludban <nludban at columbus.rr.com> wrote:

> Just found both of these at MicroCenter and brought them home:
>
> https://www.amazon.com/Python-Microcontrollers-Getting-
> Started-MicroPython/dp/1259644537
>
> http://linksprite.com/wiki/index.php5?title=LinkNode_D1
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
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From eric at intellovations.com  Fri Jan  6 15:04:33 2017
From: eric at intellovations.com (Eric Floehr)
Date: Fri, 6 Jan 2017 15:04:33 -0500
Subject: [CentralOH] Tcikets to PyTennessee (February 4-5, 2017)
Message-ID: <CAJzarMM0B09GkZxpaCOyUarcgtNbn=rjSnZG=c0N95FdwzDzoQ@mail.gmail.com>

All,

I have two tickets to PyTennessee available. They are currently a $102
value.

If you are a student, or have a financial hardship, but still would like to
go, please contact me.

PyTennessee, like PyOhio, struggles at the edge of paying the bills to put
on the conference, so if you are able to pay for the ticket, please do. But
if the cost of the ticket would make a difference, I'd love to see you go
versus not going.

Please let me know,
Eric
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From jep200404 at columbus.rr.com  Sat Jan  7 13:58:13 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Sat, 7 Jan 2017 13:58:13 -0500
Subject: [CentralOH] PyTN Accomodations
Message-ID: <20170107135813.69c71497.jep200404@columbus.rr.com>

I am going to PyTN next month.
It is time to look for accomodations.
Who would like to split a room?

From joskra42.list at gmail.com  Sun Jan  8 14:54:49 2017
From: joskra42.list at gmail.com (Joshua Kramer)
Date: Sun, 8 Jan 2017 14:54:49 -0500
Subject: [CentralOH] Critiques Requested for new app
Message-ID: <CAMPA5gcOtyUxWU7VCJyR+Dr-gLWG1ncYn5KmX0qBJQHNxZKhiA@mail.gmail.com>

Hey Everyone...

I've been working on a simple document management app.  Basically I
just needed something to handle the mountains of papers I've collected
over the years.  I wanted a simple program that would met me scan the
documents and attach tags and effective dates, and that's it.

So far I have the scanning app.  It is based on npyscreen (a ncurses
UI library) and the command line tools for ImageMagick and
sane-backends.  It is here:

https://github.com/JoshuaPK/SimDocMgr

Critiques are requested, and if anyone wants to help work on it,
that's good too.  :)

Thanks!
-JK

From eric at intellovations.com  Wed Jan 11 15:07:13 2017
From: eric at intellovations.com (Eric Floehr)
Date: Wed, 11 Jan 2017 15:07:13 -0500
Subject: [CentralOH] Next Pythology Event: Friday, March 10
Message-ID: <CAJzarMNu9A8GD-GacPffAP5XeU_6EOy2Q4CKL7nzM=p+feXmnw@mail.gmail.com>

IndyPy is putting on another series of one-day lecture series focused on a
specific topic. The first Pythology event of 2017 will be Friday, March 10
and focused on Automating Processes with Python.

The event will be held near Indianapolis, Indiana, at the Launch Fishers
coworking space in Fishers, Indiana.

More information and signup can be found here:

https://www.meetup.com/indypy/events/236143846/

Speakers and talks will be announced soon. Several COhPy'ers have attended
these events, and if you have an interest in the topic of discussion, are I
think all would say they are well worth the day trip.

If you have any questions, please contact Carol Ganz at carol at sixfeetup.com

Cheers,
Eric
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From eric at intellovations.com  Wed Jan 11 15:19:50 2017
From: eric at intellovations.com (Eric Floehr)
Date: Wed, 11 Jan 2017 15:19:50 -0500
Subject: [CentralOH] COhPy Talks Needed!
Message-ID: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>

All,

Happy New Year! I'm looking for speakers for both short and long talks,
walk-throughs, group coding facilitators, and refactoring exercises.


Possible 15 minute to 1 hour ideas:

1. What have you programmed in Python lately?

2. What new library or feature have you discovered that you'd like to share?

3. What code could use some refactoring?

4. What interesting programming ideas or challenge do you have?


I know that a few of you suggested topics to me last year, but I can't find
my notes! :-( If you've already let me know in the past that you'd like to
talk, send me a note please!!

Thanks so much!
Eric
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From jep200404 at columbus.rr.com  Wed Jan 11 16:37:02 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Wed, 11 Jan 2017 16:37:02 -0500
Subject: [CentralOH] Critiques Requested: Come to Dojos
In-Reply-To: <CAMPA5gcOtyUxWU7VCJyR+Dr-gLWG1ncYn5KmX0qBJQHNxZKhiA@mail.gmail.com>
References: <CAMPA5gcOtyUxWU7VCJyR+Dr-gLWG1ncYn5KmX0qBJQHNxZKhiA@mail.gmail.com>
Message-ID: <20170111163702.7ddec87c.jep200404@columbus.rr.com>

On Sun, 8 Jan 2017 14:54:49 -0500, Joshua Kramer <joskra42.list at gmail.com> wrote:

> https://github.com/JoshuaPK/SimDocMgr
> 
> Critiques are requested, and if anyone wants to help work on it,
> that's good too.  :)

Come to the dojos[1] to find and explore various ways of coding.

[1] https://www.meetup.com/Central-Ohio-Python-Users-Group/

From jep200404 at columbus.rr.com  Wed Jan 11 16:44:47 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Wed, 11 Jan 2017 16:44:47 -0500
Subject: [CentralOH] Critiques Requested: Live Refactoring
In-Reply-To: <CAMPA5gcOtyUxWU7VCJyR+Dr-gLWG1ncYn5KmX0qBJQHNxZKhiA@mail.gmail.com>
References: <CAMPA5gcOtyUxWU7VCJyR+Dr-gLWG1ncYn5KmX0qBJQHNxZKhiA@mail.gmail.com>
Message-ID: <20170111164447.1a0568ca.jep200404@columbus.rr.com>

On Sun, 8 Jan 2017 14:54:49 -0500, Joshua Kramer <joskra42.list at gmail.com> wrote:

> Critiques are requested, and if anyone wants to help work on it,
> that's good too.  :)

Consider showing your code at the monthly meeting[1]
for live refactoring. Eric is actively look for speakers:

On Wed, 11 Jan 2017 15:19:50 -0500, Eric Floehr <eric at intellovations.com> wrote:

> Happy New Year! I'm looking for speakers for both short and long talks,
> walk-throughs, group coding facilitators, and refactoring exercises.

> Possible 15 minute to 1 hour ideas:

> 3. What code could use some refactoring?

[1] 2017-01-30 January Monthly Meeting
    https://www.meetup.com/Central-Ohio-Python-Users-Group/events/236712398/

From jep200404 at columbus.rr.com  Wed Jan 11 17:05:56 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Wed, 11 Jan 2017 17:05:56 -0500
Subject: [CentralOH] Critiques Requested: UNIX Philosophy
In-Reply-To: <CAMPA5gcOtyUxWU7VCJyR+Dr-gLWG1ncYn5KmX0qBJQHNxZKhiA@mail.gmail.com>
References: <CAMPA5gcOtyUxWU7VCJyR+Dr-gLWG1ncYn5KmX0qBJQHNxZKhiA@mail.gmail.com>
Message-ID: <20170111170556.1a659155.jep200404@columbus.rr.com>

On Sun, 8 Jan 2017 14:54:49 -0500, Joshua Kramer <joskra42.list at gmail.com> wrote:

> It is based on npyscreen (a ncurses UI library)...

Consider following the unix philosophy[1], including:

1. Make each program do one thing well.

   Instead of one big program,
   have multiple smaller programs,

2. Write programs to handle text streams,
   because that is a universal interface.

   This makes it easy to use your little programs
   above with other programs and
   unix friends such as grep, sed, and awk.

3. Avoid captive user interfaces.

   (So make the ncurses interface a separate program.)

[1] https://en.wikipedia.org/wiki/Unix_philosophy

From jep200404 at columbus.rr.com  Wed Jan 11 18:50:42 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Wed, 11 Jan 2017 18:50:42 -0500
Subject: [CentralOH] COhPy Talks Needed!: Work Forum
In-Reply-To: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
References: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
Message-ID: <20170111185042.1e1e59dc.jep200404@columbus.rr.com>

On Wed, 11 Jan 2017 15:19:50 -0500, Eric Floehr <eric at intellovations.com> wrote:

> I'm looking for speakers for both short and long ...

Something we have done on an occasional ad-hoc basis
that would be good to do on a official regular basis
is to let folks who are looking for workers and folks
who are looking for work say so to the whole group.
Ten minutes would probably be plenty.

We have a hard stop for the meeting at 8:30pm.
Consider a hard stop for the presentations at 8:20pm
then work forum with overall hard stop at 8:30pm.

From kedlav at gmail.com  Wed Jan 11 22:33:53 2017
From: kedlav at gmail.com (Max)
Date: Wed, 11 Jan 2017 22:33:53 -0500
Subject: [CentralOH] COhPy Talks Needed!
In-Reply-To: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
References: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
Message-ID: <CAJ0ZZVwTw1MxJfspdfOQwYWRMcTKXY8mnnr51SzZXaAiDtV_LA@mail.gmail.com>

Hi Eric,

    I recently moved back to Columbus from Austin where I've been plying my
trade for the last 7 years.  I'd be happy to give talks on the following
topics:

* Web Security (1hr) - understanding common vulnerabilities and how to
prevent them with practical python examples
* Web Security and Design (30m): Using good design and great tools to
influence positive user behavior with practical python examples
* Test Automation: Learnings from 0 tests to zero defects (1hr) - How I
went about booting test automation in two organizations from single digit
tests on multimillion line codebases to zero defects, again with practical
python examples
* Memory Leaks Troubleshooting (15m): How to fight memory leaks on linux
with python
* Stretching the Django ORM (1hr): How to best use the django orm to have
great reusability, thorough testing, and scale to hundreds of millions of
record tables with no DBA.
* Introduction to monitoring Python apps from the inside (30m): How to use
tools like basic tools like pghero and opbeat/sentry to get ahead of the
game, statsd+graphite and ELK to troubleshoot complex issues at scale
* Dealing with clibs to get to pythonic code (1hr): Practical walkthrough
of how you can take a horrific to use c library like tesseract and build
testable, elegant pythonic code for the rest of the dev team to interact
with.

I've never presented on that last topic, but having recently dealt with
this a few times for processing scans and PDF's, I have a lot of good
examples in source control.  Having just given the memory leaks
troubleshooting presentation to my own team, I'd be happy to share that at
this upcoming or the next session.

Thanks,
Max Morlocke


On Wed, Jan 11, 2017 at 3:19 PM, Eric Floehr <eric at intellovations.com>
wrote:

> All,
>
> Happy New Year! I'm looking for speakers for both short and long talks,
> walk-throughs, group coding facilitators, and refactoring exercises.
>
>
> Possible 15 minute to 1 hour ideas:
>
> 1. What have you programmed in Python lately?
>
> 2. What new library or feature have you discovered that you'd like to
> share?
>
> 3. What code could use some refactoring?
>
> 4. What interesting programming ideas or challenge do you have?
>
>
> I know that a few of you suggested topics to me last year, but I can't
> find my notes! :-( If you've already let me know in the past that you'd
> like to talk, send me a note please!!
>
> Thanks so much!
> Eric
>
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
>
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From bim at digitalbim.com  Thu Jan 12 20:32:52 2017
From: bim at digitalbim.com (Bim Walker)
Date: Thu, 12 Jan 2017 20:32:52 -0500
Subject: [CentralOH] COhPy Talks Needed!
In-Reply-To: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
References: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
Message-ID: <3C3CECAC-186C-4A23-AF8E-F346E4FF6D6C@digitalbim.com>

Hi Eric, I could probably do a talk on xlwings (dynamic Python/Excel communication).


Bim


On Jan 11, 2017, at 3:19 PM, Eric Floehr <eric at intellovations.com> wrote:

> All,
> 
> Happy New Year! I'm looking for speakers for both short and long talks, walk-throughs, group coding facilitators, and refactoring exercises.
> 
> 
> Possible 15 minute to 1 hour ideas:
> 
> 1. What have you programmed in Python lately?
> 
> 2. What new library or feature have you discovered that you'd like to share?
> 
> 3. What code could use some refactoring?
> 
> 4. What interesting programming ideas or challenge do you have?
> 
> 
> I know that a few of you suggested topics to me last year, but I can't find my notes! :-( If you've already let me know in the past that you'd like to talk, send me a note please!!
> 
> Thanks so much!
> Eric
> 
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh


From pybokeh at gmail.com  Thu Jan 12 21:18:47 2017
From: pybokeh at gmail.com (pybokeh)
Date: Thu, 12 Jan 2017 21:18:47 -0500
Subject: [CentralOH] COhPy Talks Needed!
In-Reply-To: <3C3CECAC-186C-4A23-AF8E-F346E4FF6D6C@digitalbim.com>
References: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
 <3C3CECAC-186C-4A23-AF8E-F346E4FF6D6C@digitalbim.com>
Message-ID: <CAOoMBVhx-c6UjV_fXBDQvFaEPX3Xj9N-NbW6oPEWYsSL3FZPcA@mail.gmail.com>

Hi Bim,
Please do!  I haven't used xlwings for a while and would love to have an
excuse to update my xlwings cheat sheet found here:
http://nbviewer.jupyter.org/github/pybokeh/jupyter_notebooks/blob/master/xlwings/Excel_Formatting.ipynb

- Daniel

On Jan 12, 2017 9:04 PM, "Bim Walker" <bim at digitalbim.com> wrote:

> Hi Eric, I could probably do a talk on xlwings (dynamic Python/Excel
> communication).
>
>
> Bim
>
>
> On Jan 11, 2017, at 3:19 PM, Eric Floehr <eric at intellovations.com> wrote:
>
> > All,
> >
> > Happy New Year! I'm looking for speakers for both short and long talks,
> walk-throughs, group coding facilitators, and refactoring exercises.
> >
> >
> > Possible 15 minute to 1 hour ideas:
> >
> > 1. What have you programmed in Python lately?
> >
> > 2. What new library or feature have you discovered that you'd like to
> share?
> >
> > 3. What code could use some refactoring?
> >
> > 4. What interesting programming ideas or challenge do you have?
> >
> >
> > I know that a few of you suggested topics to me last year, but I can't
> find my notes! :-( If you've already let me know in the past that you'd
> like to talk, send me a note please!!
> >
> > Thanks so much!
> > Eric
> >
> > _______________________________________________
> > CentralOH mailing list
> > CentralOH at python.org
> > https://mail.python.org/mailman/listinfo/centraloh
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
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From bim at digitalbim.com  Thu Jan 12 21:33:21 2017
From: bim at digitalbim.com (Bim Walker)
Date: Thu, 12 Jan 2017 21:33:21 -0500
Subject: [CentralOH] COhPy Talks Needed!
In-Reply-To: <CAOoMBVhx-c6UjV_fXBDQvFaEPX3Xj9N-NbW6oPEWYsSL3FZPcA@mail.gmail.com>
References: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
 <3C3CECAC-186C-4A23-AF8E-F346E4FF6D6C@digitalbim.com>
 <CAOoMBVhx-c6UjV_fXBDQvFaEPX3Xj9N-NbW6oPEWYsSL3FZPcA@mail.gmail.com>
Message-ID: <F5D6A5AA-ECC2-4554-B31F-BAE3628BD9AD@digitalbim.com>


Thanks - that?s a great resource.  I didn?t know that you could freeze rows via xlwings!



Bim



On Jan 12, 2017, at 9:18 PM, pybokeh <pybokeh at gmail.com> wrote:

> Hi Bim,
> Please do!  I haven't used xlwings for a while and would love to have an excuse to update my xlwings cheat sheet found here:
> http://nbviewer.jupyter.org/github/pybokeh/jupyter_notebooks/blob/master/xlwings/Excel_Formatting.ipynb
> 
> - Daniel
> 
> On Jan 12, 2017 9:04 PM, "Bim Walker" <bim at digitalbim.com> wrote:
> Hi Eric, I could probably do a talk on xlwings (dynamic Python/Excel communication).
> 
> 
> Bim
> 
> 
> On Jan 11, 2017, at 3:19 PM, Eric Floehr <eric at intellovations.com> wrote:
> 
> > All,
> >
> > Happy New Year! I'm looking for speakers for both short and long talks, walk-throughs, group coding facilitators, and refactoring exercises.
> >
> >
> > Possible 15 minute to 1 hour ideas:
> >
> > 1. What have you programmed in Python lately?
> >
> > 2. What new library or feature have you discovered that you'd like to share?
> >
> > 3. What code could use some refactoring?
> >
> > 4. What interesting programming ideas or challenge do you have?
> >
> >
> > I know that a few of you suggested topics to me last year, but I can't find my notes! :-( If you've already let me know in the past that you'd like to talk, send me a note please!!
> >
> > Thanks so much!
> > Eric
> >
> > _______________________________________________
> > CentralOH mailing list
> > CentralOH at python.org
> > https://mail.python.org/mailman/listinfo/centraloh
> 
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh

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From pybokeh at gmail.com  Fri Jan 13 20:01:59 2017
From: pybokeh at gmail.com (pybokeh)
Date: Fri, 13 Jan 2017 20:01:59 -0500
Subject: [CentralOH] Installing Python on Linux from Source?
Message-ID: <CAOoMBVhvkWRMAcMhYchLP76+RnghvSbEGUm1rdFpHya=LaTP+Q@mail.gmail.com>

Just curious if there is a better way to install a Python version from
source on Linux and then make virtual environment using that new Python
version.

Here are my steps / procedure:
# Install necessary dependencies
sudo apt-get install build-essential libsqlite3-dev sqlite3 bzip2 libbz2-dev
sudo apt-get install libreadline-dev libncursesw5-dev libncurses5-dev
zlib1g-dev libssl-dev tk-dev

# Download source:
wget https://www.python.org/ftp/python/3.5.1/Python-3.5.1.tar.xz

# Extract, configure, make, and make install
tar xf Python-3.5.1.tar.xz
cd Python-3.5.1
./configure --prefix=/opt/python3.5.1
make && sudo make install

# Find location of Python installation:
whereis python

# Create folder to contain your virtual environments:
mkdir ~/envs
cd ~/envs

# create bottle virtual environment using Python 3.5's venv
/opt/python3.5.1/bin/python3.5 -m venv bottle

# Activate bottle environment:
cd bottle
source bin/activate
pip --version           # confirm pip/python version

# Install packages:
pip install <package_name>

# deactivate virtual environment:
deactivate

- Daniel
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From kedlav at gmail.com  Fri Jan 13 23:09:40 2017
From: kedlav at gmail.com (Max)
Date: Fri, 13 Jan 2017 23:09:40 -0500
Subject: [CentralOH] Installing Python on Linux from Source?
In-Reply-To: <CAOoMBVhvkWRMAcMhYchLP76+RnghvSbEGUm1rdFpHya=LaTP+Q@mail.gmail.com>
References: <CAOoMBVhvkWRMAcMhYchLP76+RnghvSbEGUm1rdFpHya=LaTP+Q@mail.gmail.com>
Message-ID: <CAJ0ZZVwZdCRZ2Ebh8=fQ43h56Yx1VMdnPBib81mncWthhh0k=A@mail.gmail.com>

For Enterprise Linux distros, you can generally find packages using
rpmfind.net.  Some are put together by less well known packagers, so please
be careful.  The IUS repo is probably your best bet if you're not on fedora
to get the latest upstream packages from a reliable team and not breaking
namespaces.

For ubuntu, 16.10 and above have python3.6 packaged and ready.  If you're
on an older version (which is a reasonable guess), you can get all versions
through 3.5.1 from this repo:
https://launchpad.net/~fkrull/+archive/ubuntu/deadsnakes.  Alas, the
maintainer ran out of time to be able to support this.  As I tend to run a
lot more on enterprise linux... I really can't recommend much else.

An alternative is to switch to using anaconda (once they upgrade, they are
slower as they have a *lot* of stuff to maintain and test).  This works
cross-platform (windows, mac, most varieties of linux) and is highly
recommended if your sysadmin skills aren't strong.

-Max

On Fri, Jan 13, 2017 at 8:01 PM, pybokeh <pybokeh at gmail.com> wrote:

> Just curious if there is a better way to install a Python version from
> source on Linux and then make virtual environment using that new Python
> version.
>
> Here are my steps / procedure:
> # Install necessary dependencies
> sudo apt-get install build-essential libsqlite3-dev sqlite3 bzip2
> libbz2-dev
> sudo apt-get install libreadline-dev libncursesw5-dev libncurses5-dev
> zlib1g-dev libssl-dev tk-dev
>
> # Download source:
> wget https://www.python.org/ftp/python/3.5.1/Python-3.5.1.tar.xz
>
> # Extract, configure, make, and make install
> tar xf Python-3.5.1.tar.xz
> cd Python-3.5.1
> ./configure --prefix=/opt/python3.5.1
> make && sudo make install
>
> # Find location of Python installation:
> whereis python
>
> # Create folder to contain your virtual environments:
> mkdir ~/envs
> cd ~/envs
>
> # create bottle virtual environment using Python 3.5's venv
> /opt/python3.5.1/bin/python3.5 -m venv bottle
>
> # Activate bottle environment:
> cd bottle
> source bin/activate
> pip --version           # confirm pip/python version
>
> # Install packages:
> pip install <package_name>
>
> # deactivate virtual environment:
> deactivate
>
> - Daniel
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
>
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From jep200404 at columbus.rr.com  Sat Jan 14 15:38:44 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Sat, 14 Jan 2017 15:38:44 -0500
Subject: [CentralOH] =?utf-8?q?2017-01-13_=E9=81=93=E5=A0=B4_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz8gY2hlbWlzdCBsYW5ndWFnZTsgc3ludGFjdGljIHN1?=
 =?utf-8?q?gar=3B_cloud=3B_gitlab=3B_snippets=3B_right-legend=3B_f-strings?=
 =?utf-8?q?=3B_closure=3B_function_decorator=3B_deep_learning=3B_skyfield?=
 =?utf-8?q?=3B_fibonacci=3B_synchrony=3B_GOTO?=
Message-ID: <20170114153844.7fef1d6e.jep200404@columbus.rr.com>

What programming language should a chemist learn first?
How prosperous can a chemist be without learning how to program?

virtualenv env3 -p `which python3`
works on Ubuntu 14.04.5 LTS

nextcloud forked from owncloud
wp:Telegram (software)

wp:gitlab

wp: prefix means Wikipedia
To get good answers, consider following the advice in the links below.
http://catb.org/~esr/faqs/smart-questions.html
http://web.archive.org/web/20090627155454/www.greenend.org.uk/rjk/2000/06/14/quoting.html

What is URL for Jupyter extension snippets?
https://github.com/captainsafia/notebook-snippet-manager???
    allows one to mess with Jupyter menu

    copy and paste between different notebooks?
        if so, great! This has long been needed.

http://maxberggren.se/2016/11/21/right-labels/
https://github.com/maxberggren/legend-right
    was python 2 only, and there were problems for traces that were not
    complete
    ported to Python 3
    and put legends to right of ends of traces,
    wherever they are
https://github.com/pybokeh/jupyter_notebooks/blob/master/matplotlib/Aligning_Legend_Labels_To_Lines.ipynb
http://nbviewer.jupyter.org/github/pybokeh/jupyter_notebooks/blob/master/matplotlib/Aligning_Legend_Labels_To_Lines.ipynb

syntactic sugar

    syntactic sugar is not _necessary_

    "syntactic sugar" can be a pejorative dismissive term

    readability is the benefit of syntactic sugar

        Readability counts.

    Python has much syntactic sugar.

        I have come to realize Python's syntactic sugar allows one to write
        code that is more readable. So that unnecessary syntactic sugar is a
        good thing. Python's syntactic sugar is part of what makes Python a
        higher level language than many other languages.

How would one refactor the Javaesque code in
"Beyond PEP 8 -- Best practices for beautiful intelligible code",
for Go, Ruby, C++, or C#?
http://pyvideo.org/pycon-us-2015/beyond-pep-8-best-practices-for-beautiful-inte.html

ken m v miss sweetie poo

f-strings

    I like f-strings

    Someone else
    really really really likes f-strings

    https://www.python.org/dev/peps/pep-0498/

    something that I am wrapping my head around is that f-strings are
    dynamic expressions even though they _look_ like static strings.

closure
function decorator
http://nbviewer.ipython.org/url/colug.net/python/cohpy/20150223/cohpy-20150223-memoization.ipynb
http://www.python-course.eu/python3_memoization.php
memoize is cute for learning closures and function decorator,
but mediocre for production.
For production, I recommend functools.lru_cache over memoize.

wp:Deep learning
    automates aspects of machine learning,
    but at cost of using more computer

    For serious stuff,
    need experts to narrow focus of classic machine learning

-------------------------------------------------------------------------------

>From the "All your base are belong to us" department:
consider getting additional email account to back up all github notifications

    but not all notifications are emailed

gitlab? used by:
    IBM
    Redhat
    stackexchange
    O'Reilly
    NASA
    CERN
    Bayer
    nasdaq
    vmware
    intel
    macy's
    uber
    lockheed martin

You have one second extra tonight!
http://www.leitrimobserver.ie/news/lifestyle/229304/you-have-one-second-extra-tonight.html
https://docs.python.org/3/library/datetime.html

Getting started with Machine learning on Linux with Python 3 and Scikit-learn
https://techarena51.com/index.php/getting-started-machine-learning-linux-python-3-scikit-learn/?utm_source=lxer

Skyfield and 15 Years of Bad APIs
http://pyvideo.org/pycon-ca-2013/skyfield-and-15-years-of-bad-apis.html

https://github.com/skyfielders/python-skyfield
https://github.com/skyfielders/astronomy-notebooks
    need to update INSTALL-xubuntu-12.10

Easycoder
    https://en.wikipedia.org/wiki/Honeywell_200#Software

Scratch Programming Playground
https://www.nostarch.com/scratchplayground

Introduction to Machine Learning with Python
http://shop.oreilly.com/product/0636920030515.do

Did the mechanic really discern the problem,
or did he just tinker until the symptoms vanished?

fibs:

    http://nbviewer.jupyter.org/github/james-prior/euler/blob/master/euler-002-even-fibonacci-numbers-20130729.ipynb
    http://nbviewer.ipython.org/url/colug.net/python/cohpy/20150223/cohpy-20150223-memoization.ipynb

    The Great Math Mystery (PBS Nova)
        fibonacci numbers and botany

    read knuth

curious coordination

    shepherd moons
    pendulum clocks on a wall

Latest Cinnamon Release Lands in Antergos, but Read This Before Updating Python
http://news.softpedia.com/news/antergos-users-urged-not-to-update-python-until-latest-cinnamon-release-lands-511634.shtml

What engineers and marketers can learn from each other
https://opensource.com/open-organization/17/1/engineers-marketers-can-learn

GOTO considered awesome
http://www.rasterman.com/post/goto-is-awesome-2-to-3x-faster
https://www.xkcd.com/292/

Duff's device
interleaving the switch cases and do/while loop is stunning.

    send(to, from, count)
    register short *to, *from;
    register count;
    {
        register n = (count + 7) / 8;
        switch (count % 8) {
        case 0: do { *to = *from++;
        case 7:      *to = *from++;
        case 6:      *to = *from++;
        case 5:      *to = *from++;
        case 4:      *to = *from++;
        case 3:      *to = *from++;
        case 2:      *to = *from++;
        case 1:      *to = *from++;
                } while (--n > 0);
        }
    }

wp:The Two Cultures
back to GEB

Gradual Collapse of Microsoft?s Extensive (and External) Patent Trolling Operations
http://techrights.org/2017/01/11/psyhogeos-and-detkin/

Explore climate data with open source tools
https://opensource.com/article/17/1/apache-open-climate-workbench

From eric at intellovations.com  Sun Jan 15 16:42:17 2017
From: eric at intellovations.com (Eric Floehr)
Date: Sun, 15 Jan 2017 16:42:17 -0500
Subject: [CentralOH] Comments and pull-requests welcome
Message-ID: <CAJzarMOfBCf+N9P_-xOjB6KuaQJN4DeEhstK+qPHZ1yKBpu+aQ@mail.gmail.com>

I was intrigued by this Mathologer video:

https://www.youtube.com/watch?v=qhbuKbxJsk8

titled "Times Tables, Mandelbrot and the Heart of Mathematics", and I
wanted to create the circles and lines shown in the video, so I wrote a
Python program to do so.

Check out the program I wrote, it's a total of less than 200 lines,
including blank lines and comments:

https://github.com/efloehr/circlemult

It requires Python 3 and PyQt5.

I'd be interested in your comments, improvements, pull-requests, etc.

Thanks!
Eric
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From nludban at columbus.rr.com  Mon Jan 16 00:18:05 2017
From: nludban at columbus.rr.com (Neil Ludban)
Date: Mon, 16 Jan 2017 00:18:05 -0500
Subject: [CentralOH] Comments and pull-requests welcome
In-Reply-To: <CAJzarMOfBCf+N9P_-xOjB6KuaQJN4DeEhstK+qPHZ1yKBpu+aQ@mail.gmail.com>
References: <CAJzarMOfBCf+N9P_-xOjB6KuaQJN4DeEhstK+qPHZ1yKBpu+aQ@mail.gmail.com>
Message-ID: <20170116001805.ed6e1d5fff869f47757e0b71@columbus.rr.com>

On Sun, 15 Jan 2017 16:42:17 -0500
Eric Floehr <eric at intellovations.com> wrote:
> I was intrigued by this Mathologer video:
> 
> https://www.youtube.com/watch?v=qhbuKbxJsk8
> 
> titled "Times Tables, Mandelbrot and the Heart of Mathematics", and I
> wanted to create the circles and lines shown in the video, so I wrote a
> Python program to do so.
> 
> Check out the program I wrote, it's a total of less than 200 lines,
> including blank lines and comments:
> 
> https://github.com/efloehr/circlemult
> 
> It requires Python 3 and PyQt5.
> 
> I'd be interested in your comments, improvements, pull-requests, etc.
> 
> Thanks!
> Eric


I was going to suggest numpy, then recognized the underlying equations,
and it turned into a project...


$ ./npcirclemult.py -h
usage: npcirclemult.py [-h] [-f F1] [-m N] [-c COLOR] [-r RADIUS] [-e F0]
                       [-p PHASE] [-w LINEWIDTH]

NumPy powered circlemult.

optional arguments:
  -h, --help            show this help message and exit
  -f F1, --freq-1 F1
  -m N, --modulus N
  -c COLOR, --color COLOR
  -r RADIUS, --radius RADIUS
  -e F0, --freq-0 F0
  -p PHASE, --phase PHASE
  -w LINEWIDTH, --linewidth LINEWIDTH


$ ./npcirclemult.py -m 200 -e -17 -f 53 -c '#db7093'
$ ./npcirclemult.py -m 2048 -w 0.1 -f 42


#!/usr/local/bin/python2.7

from __future__ import division

import argparse
import sys

import matplotlib
import matplotlib.colors
import matplotlib.pyplot
import numpy

TWO_PI_J = 2j * numpy.pi

ap = argparse.ArgumentParser(
    description='NumPy powered circlemult.',
    add_help=True)
ap.add_argument('-f', '--freq-1', dest='F1', type=float, default=2.0)
ap.add_argument('-m', '--modulus', dest='N', type=int, default=100)
ap.add_argument('-c', '--color', type=str, default='MediumSeaGreen')
ap.add_argument('-r', '--radius', type=float, default=10)
ap.add_argument('-e', '--freq-0', dest='F0', type=float, default=1.0)
ap.add_argument('-p', '--phase', type=float, default=0.5)
ap.add_argument('-w', '--linewidth', type=float, default=1)

opts = ap.parse_args(sys.argv[1:])

t = numpy.arange(opts.N)
sp = opts.radius * numpy.exp(TWO_PI_J * (opts.phase + (opts.F0 / opts.N) * t))
ep = opts.radius * numpy.exp(TWO_PI_J * (0.5 + (opts.F1 / opts.N) * t))

mix = sp.conj() * ep

amp = numpy.abs(ep - sp)

fig = matplotlib.pyplot.figure(1, figsize=(8, 8))
gs = matplotlib.gridspec.GridSpec(3, 1, height_ratios=[6, 1, 1])

x1, y1 = sp.real, sp.imag
x2, y2 = ep.real, ep.imag
ax = fig.add_subplot(gs[0])
ax.set_title('Multiplication Circle')
#ax.axhline(0, color='lightgray')
#ax.axvline(0, color='lightgray')
lc = matplotlib.collections.LineCollection(
    zip(zip(x1, y1), zip(x2, y2)),
    colors=matplotlib.colors.colorConverter.to_rgba(opts.color),
    linewidths=opts.linewidth)
ax.add_collection(lc)
ax.set_aspect('equal', 'datalim')
ax.margins(0.1)

ax = fig.add_subplot(gs[1])
ax.axhline(0, color='gray')
ax.plot(t, amp, 'b-')
ax.set_ylabel('seglen')

ax = fig.add_subplot(gs[2])
ax.axhline(0, color='gray')
ax.plot(t, mix.real, 'r-')
ax.plot(t, mix.imag, 'g-')
ax.set_ylabel('mixer')

matplotlib.pyplot.show()

#--#

From jocassid at gmail.com  Mon Jan 16 22:04:15 2017
From: jocassid at gmail.com (John Cassidy)
Date: Mon, 16 Jan 2017 22:04:15 -0500
Subject: [CentralOH] COhPy Talks Needed!
In-Reply-To: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
References: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
Message-ID: <CAGt6GbeMxwjFOwUr7yqPoJpZdR1knh95omB2a7VbG-Bi6Q90KA@mail.gmail.com>

In my 9-to-5 job been doing some testing of a web application using
Selenium and pytest.  On the side I've been tinkering with some pandas
stuff.  I could give a short (15-minutes or so) talk on either of those
topics.

On Wed, Jan 11, 2017 at 3:19 PM, Eric Floehr <eric at intellovations.com>
wrote:

> All,
>
> Happy New Year! I'm looking for speakers for both short and long talks,
> walk-throughs, group coding facilitators, and refactoring exercises.
>
>
> Possible 15 minute to 1 hour ideas:
>
> 1. What have you programmed in Python lately?
>
> 2. What new library or feature have you discovered that you'd like to
> share?
>
> 3. What code could use some refactoring?
>
> 4. What interesting programming ideas or challenge do you have?
>
>
> I know that a few of you suggested topics to me last year, but I can't
> find my notes! :-( If you've already let me know in the past that you'd
> like to talk, send me a note please!!
>
> Thanks so much!
> Eric
>
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
>
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From bim at digitalbim.com  Tue Jan 17 07:46:56 2017
From: bim at digitalbim.com (Bim Walker)
Date: Tue, 17 Jan 2017 07:46:56 -0500
Subject: [CentralOH] COhPy Talks Needed!
In-Reply-To: <CAGt6GbeMxwjFOwUr7yqPoJpZdR1knh95omB2a7VbG-Bi6Q90KA@mail.gmail.com>
References: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
 <CAGt6GbeMxwjFOwUr7yqPoJpZdR1knh95omB2a7VbG-Bi6Q90KA@mail.gmail.com>
Message-ID: <D7DC1D4F-ED57-42F6-992D-40075794DB36@digitalbim.com>


I would be interested in seeing some Selenium demos.


Bim


On Jan 16, 2017, at 10:04 PM, John Cassidy <jocassid at gmail.com> wrote:

> In my 9-to-5 job been doing some testing of a web application using Selenium and pytest.  On the side I've been tinkering with some pandas stuff.  I could give a short (15-minutes or so) talk on either of those topics.
> 
> On Wed, Jan 11, 2017 at 3:19 PM, Eric Floehr <eric at intellovations.com> wrote:
> All,
> 
> Happy New Year! I'm looking for speakers for both short and long talks, walk-throughs, group coding facilitators, and refactoring exercises.
> 
> 
> Possible 15 minute to 1 hour ideas:
> 
> 1. What have you programmed in Python lately?
> 
> 2. What new library or feature have you discovered that you'd like to share?
> 
> 3. What code could use some refactoring?
> 
> 4. What interesting programming ideas or challenge do you have?
> 
> 
> I know that a few of you suggested topics to me last year, but I can't find my notes! :-( If you've already let me know in the past that you'd like to talk, send me a note please!!
> 
> Thanks so much!
> Eric
> 
> 
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
> 
> 
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh

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From cwandrews.oh at gmail.com  Tue Jan 17 08:22:01 2017
From: cwandrews.oh at gmail.com (C.W. Andrews)
Date: Tue, 17 Jan 2017 13:22:01 +0000
Subject: [CentralOH] COhPy Talks Needed!
In-Reply-To: <D7DC1D4F-ED57-42F6-992D-40075794DB36@digitalbim.com>
References: <CAJzarMOkxvZx4S44ov99jPKbA5HkR=HV0oHBiD1MzF6HGxWM_A@mail.gmail.com>
 <CAGt6GbeMxwjFOwUr7yqPoJpZdR1knh95omB2a7VbG-Bi6Q90KA@mail.gmail.com>
 <D7DC1D4F-ED57-42F6-992D-40075794DB36@digitalbim.com>
Message-ID: <CANGwrax+-eQKp-QJ3jcM1WvFLtwz-pBTkh5Yk9PQq=JxdxAcFA@mail.gmail.com>

Me too, and I love me some pytest.
On Tue, Jan 17, 2017 at 8:17 AM Bim Walker <bim at digitalbim.com> wrote:

>
> I would be interested in seeing some Selenium demos.
>
>
> Bim
>
>
> On Jan 16, 2017, at 10:04 PM, John Cassidy <jocassid at gmail.com> wrote:
>
> In my 9-to-5 job been doing some testing of a web application using
> Selenium and pytest.  On the side I've been tinkering with some pandas
> stuff.  I could give a short (15-minutes or so) talk on either of those
> topics.
>
> On Wed, Jan 11, 2017 at 3:19 PM, Eric Floehr <eric at intellovations.com>
> wrote:
>
> All,
>
> Happy New Year! I'm looking for speakers for both short and long talks,
> walk-throughs, group coding facilitators, and refactoring exercises.
>
>
> Possible 15 minute to 1 hour ideas:
>
> 1. What have you programmed in Python lately?
>
> 2. What new library or feature have you discovered that you'd like to
> share?
>
> 3. What code could use some refactoring?
>
> 4. What interesting programming ideas or challenge do you have?
>
>
> I know that a few of you suggested topics to me last year, but I can't
> find my notes! :-( If you've already let me know in the past that you'd
> like to talk, send me a note please!!
>
> Thanks so much!
> Eric
>
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
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From eric at intellovations.com  Sat Jan 21 14:06:05 2017
From: eric at intellovations.com (Eric Floehr)
Date: Sat, 21 Jan 2017 14:06:05 -0500
Subject: [CentralOH] Next Monthly Meeting: Monday, January 30, 2017
Message-ID: <CAJzarMPqojci3t3Y4F5Qz-ziXRJUwLzJ92LVgZeT656ufXUP3g@mail.gmail.com>

All,

Our first monthly meeting of the year is coming up soon. It will be Monday,
January 30, 2017 at 6pm at Pillar in the Smith's Brothers Building (where
we have met for a while now).

This month, John Cassidy will be speaking on testing of a web application
using Selenium and PyTest.

In addition to the main talk by John, we will have several smaller
recurring monthly sections:

? Job announcements, both jobs wanted and jobs open

? Interesting things we learned about Python this month

? Python Question and Answer

Come and learn, share, grow, meet new people, and visit old friends at our
monthly meeting! We'll be talking about the Python programming language and
anything that intersects it, and the cool stuff you can do with it.

Afterwards we'll be heading to Brazenhead on 5th.

Cheers,
Eric
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From eric at intellovations.com  Sat Jan 21 14:18:54 2017
From: eric at intellovations.com (Eric Floehr)
Date: Sat, 21 Jan 2017 14:18:54 -0500
Subject: [CentralOH] Next Monthly Meeting: Monday, January 30, 2017
In-Reply-To: <CAJzarMPqojci3t3Y4F5Qz-ziXRJUwLzJ92LVgZeT656ufXUP3g@mail.gmail.com>
References: <CAJzarMPqojci3t3Y4F5Qz-ziXRJUwLzJ92LVgZeT656ufXUP3g@mail.gmail.com>
Message-ID: <CAJzarMN2US3Sw4Oz2LvV7ixxS5nmyzBG8o_YiNtuRbScZ1U5CQ@mail.gmail.com>

I forgot to put the link to RSVP :-/

https://www.meetup.com/Central-Ohio-Python-Users-Group/events/236712398/



On Sat, Jan 21, 2017 at 2:06 PM, Eric Floehr <eric at intellovations.com>
wrote:

> All,
>
> Our first monthly meeting of the year is coming up soon. It will be
> Monday, January 30, 2017 at 6pm at Pillar in the Smith's Brothers Building
> (where we have met for a while now).
>
> This month, John Cassidy will be speaking on testing of a web application
> using Selenium and PyTest.
>
> In addition to the main talk by John, we will have several smaller
> recurring monthly sections:
>
> ? Job announcements, both jobs wanted and jobs open
>
> ? Interesting things we learned about Python this month
>
> ? Python Question and Answer
>
> Come and learn, share, grow, meet new people, and visit old friends at our
> monthly meeting! We'll be talking about the Python programming language and
> anything that intersects it, and the cool stuff you can do with it.
>
> Afterwards we'll be heading to Brazenhead on 5th.
>
> Cheers,
> Eric
>
>
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From jep200404 at columbus.rr.com  Tue Jan 24 13:54:26 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Tue, 24 Jan 2017 13:54:26 -0500
Subject: [CentralOH] Friday Night at PyTN
Message-ID: <20170124135426.5737669f.jep200404@columbus.rr.com>

Is there anything going on at PyTN on Friday night (2017-02-03)?

From jep200404 at columbus.rr.com  Wed Jan 25 00:15:34 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Wed, 25 Jan 2017 00:15:34 -0500
Subject: [CentralOH] 2017-01-25 11:30 Wednesday Python Lunch at Grandview
 Aladdin's
Message-ID: <20170125001534.292b8ca9.jep200404@columbus.rr.com>

Wednesday Python Lunch at Grandview Aladdin's
January 25, 2017, 11:30 a.m.

Aladdin's Eatery[1]
1425 Grandview Ave[2]
Columbus, OH 43212

We'll be meeting for good food and good company.
Join us to talk Python, programming, or anything else!

[1] http://www.aladdinseatery.com/
[2] http://www.openstreetmap.org/node/2323769991
_______________________________________________
CentralOH mailing list
CentralOH at python.org
https://mail.python.org/mailman/listinfo/centraloh

From herrold at owlriver.com  Wed Jan 25 10:30:03 2017
From: herrold at owlriver.com (R P Herrold)
Date: Wed, 25 Jan 2017 10:30:03 -0500 (EST)
Subject: [CentralOH] 2017-01-25 11:30 Wednesday Python Lunch at Grandview
 Aladdin's
In-Reply-To: <20170125001534.292b8ca9.jep200404@columbus.rr.com>
References: <20170125001534.292b8ca9.jep200404@columbus.rr.com>
Message-ID: <alpine.LRH.2.03.1701251029060.3693@bjyevire.pbz>

On Wed, 25 Jan 2017, jep200404 at columbus.rr.com wrote:

> Wednesday Python Lunch at Grandview Aladdin's
> January 25, 2017, 11:30 a.m.

I will be bringing a 'special appearance' piece of hardware to 
admire as well

-- Russ herrold

From eric at intellovations.com  Thu Jan 26 09:21:31 2017
From: eric at intellovations.com (Eric Floehr)
Date: Thu, 26 Jan 2017 09:21:31 -0500
Subject: [CentralOH] Friday Night at PyTN
In-Reply-To: <20170124135426.5737669f.jep200404@columbus.rr.com>
References: <20170124135426.5737669f.jep200404@columbus.rr.com>
Message-ID: <CAJzarMNB7S3p+7aLYUyDWGfB5t9CMYp3d8Nn2g0a4QQcF90DYw@mail.gmail.com>

Looks like there is a Kickoff Mixer Friday night:

https://www.eventbrite.com/e/kickoff-mixer-for-pytennessee-presented-by-nashville-lbgt-in-tech-tickets-31362369692

To kick off PyTennessee, we want to celebrate the awesome, quirky and
talented folks who make up the technology scene in Nashville and beyond.
Stop by the Google Fiber Space to meet others interested in building the
tech community, have some snacks and drinks on us, and gear up for a
weekend of Python and software development at PyTennessee.

Friends, family and allies of the LGBT+ community are encouraged to join
us. Everyone is welcome!


On Tue, Jan 24, 2017 at 1:54 PM, <jep200404 at columbus.rr.com> wrote:

> Is there anything going on at PyTN on Friday night (2017-02-03)?
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
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From janmilosh at gmail.com  Mon Jan 30 12:49:05 2017
From: janmilosh at gmail.com (Jan Milosh)
Date: Mon, 30 Jan 2017 12:49:05 -0500
Subject: [CentralOH] Upcoming Columbus Women in Technology Events
Message-ID: <CA+r__DX0_XaxZ5JrZqUEkWb=ET+okq+QtXu4fQmYTF2uQp1MXQ@mail.gmail.com>

There are a couple of events coming up in mid-February that might be of
interest:

February 15, 2017

9am - 12:30pm

Feedback:  Our Love Hate Relationship

A Half Day Seminar & Luncheon with Speaker Michelle Brown, COO Cover My Meds

February 16, 2017

9am - 5pm

Be Extraordinary: Treat Life As a Product

A Full Day Workshop with Facilitator Stephanie Ockermann

For more information, visit: http://www.cmhwit.com/events.html
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From jep200404 at columbus.rr.com  Tue Jan 31 09:36:48 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Tue, 31 Jan 2017 09:36:48 -0500
Subject: [CentralOH] =?utf-8?q?2017-01-30_=E6=9C=83=E8=AD=B0_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz86IGZzdHJpbmdzOiBBbmRyZXcncyBmYXZvcml0ZSB0?=
 =?utf-8?q?hing_in_Python?=
Message-ID: <20170131093648.0f919113.jep200404@columbus.rr.com>

Here is a notebook with Andrew's favorite thing in Python:

    fstrings!

http://nbviewer.jupyter.org/github/james-prior/cohpy/blob/master/20170130-cohpy-fstrings.ipynb
https://github.com/james-prior/cohpy/blob/master/20170130-cohpy-fstrings.ipynb

What good use can you contrive for the lambda that has no arguments
and accesses local variables?
Maybe closures are a good use for them. (Maybe not)
What else?

From jep200404 at columbus.rr.com  Tue Jan 31 14:19:30 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Tue, 31 Jan 2017 14:19:30 -0500
Subject: [CentralOH] 2017-01-25 Aladdin's Plush Paper Napkin Scribbles:
 Virginia; multicore memory; aix; regex n+1 problems
In-Reply-To: <alpine.LRH.2.03.1701251029060.3693@bjyevire.pbz>
References: <20170125001534.292b8ca9.jep200404@columbus.rr.com>
 <alpine.LRH.2.03.1701251029060.3693@bjyevire.pbz>
Message-ID: <20170131141930.5ed81d57.jep200404@columbus.rr.com>

On Wed, 25 Jan 2017 10:30:03 -0500 (EST), R P Herrold <herrold at owlriver.com> wrote:

> I will be bringing a 'special appearance' piece of hardware to 
> admire as well

He did and it was admired.

There are multi-core CPUs, multi-core solder, and multi-core memory.

    colug.net/multicore
 
aix
    standard unix stuff
    plus three layers of special sauce for storage
    wp:embrace, extend, extinguish 
    search for embrace, extend, or extinguish in following.
    http://cyber.law.harvard.edu/msdoj/transcripts/1110a.doc
 
n+1
standards are like regular expressions
    https://xkcd.com/927/
    Some people, when confronted with a problem,
    think "I know, I'll use regular expressions." Now they have two problems.[2]
    (n is 1)
 
[2] https://en.wikiquote.org/wiki/Jamie_Zawinski#Attributed
    
Regular expressions have complexity.
They are helpful when their complexity is less than not using them.
They can complicate a simple problem.
They can also greatly simplify a problem
that is complex to solve with other techniques.
 
Compare with figuring the area of a right triangle when the short sides a and b
are known. That is a trivial problem. You can solve it with calculus,
but using calculus would be rediculously overly complicated.
 
But how would you figure the area of a parabolic reflector?
If you have not figured out some geometric trick for doing so,
it might be very difficult to figure out.
Calculus can just march through that problem. 
 
Regular Expressions: Now You Have Two Problems
https://blog.codinghorror.com/regular-expressions-now-you-have-two-problems/
wp:DNA Lounge

wp: prefix means Wikipedia
To get good answers, consider following the advice in the links below.
http://catb.org/~esr/faqs/smart-questions.html
http://web.archive.org/web/20090627155454/www.greenend.org.uk/rjk/2000/06/14/quoting.html