From jep200404 at columbus.rr.com  Fri Sep  1 16:21:33 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Fri, 1 Sep 2017 16:21:33 -0400
Subject: [CentralOH] Captions for Pyvideo Videos from IBM speech to text
 transcription
In-Reply-To: <alpine.LRH.2.03.1708301549370.17101@bjyevire.pbz>
References: <alpine.LRH.2.03.1708301549370.17101@bjyevire.pbz>
Message-ID: <20170901162133.67c74899.jep200404@columbus.rr.com>

On Wed, 30 Aug 2017 15:54:12 -0400 (EDT), R P Herrold <herrold at owlriver.com> wrote:

> speech to text

> https://console.bluemix.net/docs/openwhisk/openwhisk_watson_speechtotext.html#converting-speech-to-text

Imagine this used to create captions for videos on pyvideo.org.

From jep200404 at columbus.rr.com  Fri Sep  1 23:12:44 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Fri, 1 Sep 2017 23:12:44 -0400
Subject: [CentralOH] =?utf-8?q?2017-08-31_=E9=81=93=E5=A0=B4_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz8gcHlyYW1pZCBzbGlkaW5nIHYgZXVsZXIgIzE4OyBi?=
 =?utf-8?q?ugs?=
Message-ID: <20170901231244.47dc0a56.jep200404@columbus.rr.com>

8 folks tonight

ubuntu.com is good distro for beginners

wp:VirtualBox
wp:Hyper-V

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

freecoders.com???
    
openhash.org

    https://www.edureka.co/
https://www.reddit.com/r/dailyprogrammer/

Compare:

    https://www.reddit.com/r/dailyprogrammer/comments/6vi9ro/170823_challenge_328_intermediate_pyramid_sliding/
    http://nbviewer.jupyter.org/github/james-prior/euler/blob/master/euler-018-maximum-path-sum-i-20161225.ipynb

        i wonder about other ways of doing cell 7

            consolidating body of loop into one ugly long statement

            recursion

    http://nbviewer.jupyter.org/github/james-prior/euler/blob/master/euler-015-lattice-paths-20130726.ipynb

Compare:

    Children multiplication tables practice test with Bash script on Linux
    https://linuxconfig.org/children-multiplication-tables-practice-test-with-bash-script-on-linux

    http://nbviewer.jupyter.org/github/james-prior/cohpy/blob/master/20170810-dojo-parsing-input-file.ipynb

        This has multiple bugs, especially cell #3.

Today is a Good Day to Learn Python
https://www.linux.com/learn/intro-to-Linux/2017/8/today-good-day-learn-python

Astroplan Python library makes astronomy research planning easier
https://opensource.com/article/17/8/astroplan

DeepSPADE (alias DeepSmokey): A Machine-Learning System That Collects Spam from the Internet
https://www.linux.com/blog/event/open-source-summit-la/2017/8/deepspade-alias-deepsmokey-machine-learning-system-collects-spam-internet

Gab Launches Legal Fund to Take on Silicon Valley Censorship
http://www.breitbart.com/tech/2017/08/22/gab-launches-legal-fund-to-take-on-silicon-valley-censorship/

react.js can be used with django

    Apache Foundation and Facebook in Standoff Over React.js License
    http://windowsitpro.com/open-source/apache-foundation-and-facebook-standoff-over-reactjs-license

3 open source Python GUI frameworks
https://opensource.com/resources/python/gui-frameworks

Python articles at opensource.com
https://opensource.com/tags/python?src=programming_resource_menu1

Mentoring: Your path to immortality
https://opensource.com/article/17/8/mentoring-your-path-immortality

From jep200404 at columbus.rr.com  Sun Sep 10 21:46:23 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Sun, 10 Sep 2017 21:46:23 -0400
Subject: [CentralOH] =?utf-8?q?2017-09-07_=E9=81=93=E5=A0=B4_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz8gcHl2ZW52IHZlcnN1cyB2ZW52IHZlcnN1cyB2aXJ0?=
 =?utf-8?q?ualenv=3B_github_backups=3B_brandon=27s_adventure=3B_check_writ?=
 =?utf-8?q?ing?=
Message-ID: <20170910214623.63e7b172.jep200404@columbus.rr.com>

pyvenv versus venv

    I have been so confused about pyvenv versus venv for virtual environments
    for Python3 that I shunned both of them.
    Also, pyvenv but not venv would work on one distro,
    and venv but not pyvenv would work on another distro.
    Now venv works on both distros.
    Also, "28.3. venv ? Creation of virtual environments"[1] says:

        Note The pyvenv script has been deprecated as of Python 3.6 in favor of
        using python3 -m venv ...

    So "python3 -m venv /path/to/new/virtual/environment"
    is the way preferred by the Python Software Foundation.

    Unfortunately, venv is not happy on a Centos 7 installation:

        [doj at sbc ~]$ python3
        Python 3.4.5 (default, Nov  9 2016, 16:24:59) 
        [GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux
        Type "help", "copyright", "credits" or "license" for more information.
        >>> 
        [doj at sbc ~]$ python3 -m venv mobyvenv
        Error: Command '['/home/doj/mobyvenv/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1
        [doj at sbc ~]$ 

    so I resort to something like:

        virtualenv env -p `which python3`

systemd is the best example of Suck.
http://suckless.org/sucks/systemd
https://twitter.com/systemdsucks

not http://systemdsucks.com/

other examples of suck

    http://newromesucks.com/
    Thanks again to Jamie Mueller for his efforts in ending New Rome.
    wp:New Rome, Ohio
        http://www.newromesucks.com/topten.html
    wp:Brice, Ohio
        http://www.dispatch.com/content/stories/editorials/2015/11/28/1-brice-finds-another-way.html
        http://abc6onyourside.com/news/local/on-your-side-speed-camera-inside-orange-barrel-gets-attention-but-its-legal

backing up github issues

    How to Download GitHub Issues from the Command Line
    https://adriansieber.com/download-github-issues-from-command-line/

    doj at sbc:~$ for i in `seq 124 -1 1`; do echo $i;if wget -x -a log https://github.com/james-prior/cohpy/pull/$i; then :; else wget -x -a log https://github.com/james-prior/cohpy/issue/$i;fi;sleep 180;done

3 consequences of coding in the open
https://opensource.com/open-organization/17/8/transparency-at-reaction

A programmer?s cleaning guide for messy sensor data
https://opensource.com/article/17/9/messy-sensor-data

a rival language

    Must go faster, must go faster! Oracle lobs Java EE into GitHub, vows rapid Java SE releases
    http://www.theregister.co.uk/2017/09/06/oracle_java_ee_java_se_github/

[2017-09-06] Challenge #330 [Intermediate] Check Writer
https://www.reddit.com/r/dailyprogrammer/comments/6yep7x/20170906_challenge_330_intermediate_check_writer/

Heirloom Software: the Past as Adventure
http://www.linuxjournal.com/content/heirloom-software-past-adventure

    Brandon Rhodes' Adventure in Python3
    http://pyvideo.org/pyohio-2011/pyohio-2011--sunday-lightning-talks.html
    http://rhodesmill.org/brandon/2012/adventure/
    https://github.com/brandon-rhodes/python-adventure/tree/master/adventure

[1] 28.3. venv ? Creation of virtual environments
    https://docs.python.org/3/library/venv.html

From miller.eric.t at gmail.com  Fri Sep 15 16:06:49 2017
From: miller.eric.t at gmail.com (Eric Miller)
Date: Fri, 15 Sep 2017 16:06:49 -0400
Subject: [CentralOH] PyPI security issue
Message-ID: <CAN67YM7N5gy7XUdQtYVGtiyv7jFd-aKU7soQPOncpwAErOTVoA@mail.gmail.com>

SK-CSIRT identified malicious software libraries PyPI, posing as well known
libraries.

https://news.ycombinator.com/item?id=15256121
http://www.nbu.gov.sk/skcsirt-sa-20170909-pypi/
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From eric at intellovations.com  Mon Sep 18 19:44:53 2017
From: eric at intellovations.com (Eric Floehr)
Date: Mon, 18 Sep 2017 19:44:53 -0400
Subject: [CentralOH] September Monthly Meeting
Message-ID: <CAJzarMMu3t1+W-x7kTMJMk9MPb24yamMHKqeFhk8ycXf0Govdg@mail.gmail.com>

RSVP Here:

https://www.meetup.com/Central-Ohio-Python-Users-Group/events/236712516/

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.

This month we welcome Erik Welch, Senior Software Developer at Continuum
Analytics to talk about how IPython and Jupyter Notebooks have changed the
way we develop, interact with, and share code in Python.  He will talk
about recent advances in the Jupyter ecosystem, and explore ways to enhance
your Jupyter experience.  Some specific examples of possible topics covered
include Jupyter Notebooks, JupyterLab, JupyterHub, kernels, plugins,
extensions, ipywidgets, bqplots, bokeh, dask, and more. Expect plenty of
live examples and hacking!

Afterwards we'll be heading to Brazenhead on 5th.
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From jep200404 at columbus.rr.com  Tue Sep 19 16:26:13 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Tue, 19 Sep 2017 16:26:13 -0400
Subject: [CentralOH] =?utf-8?q?2017-09-14_=E9=81=93=E5=A0=B4_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz8gUG9wdWxhcml0eSwgTG9nZ2luZywgUGFuZGFz?=
Message-ID: <20170919162613.7f37faa8.jep200404@columbus.rr.com>

wifi was not good tonight

Everyone loves programming in Python!
You disagree? But it's the fastest growing, says Stack Overflow
https://www.theregister.co.uk/2017/09/09/python_is_an_expander_not_a_constrictor/

Oracle prepares to spin off Java EE to Eclipse Foundation
http://www.zdnet.com/article/oracle-prepares-to-spin-off-java-ee-to-eclipse-foundation/#ftag=RSSbaffb68

A guide to logging in Python
https://opensource.com/article/17/9/python-logging

Irma @ CMH: .42 inch total; 9 mph wind

equifax
    apache something exploit?
argentine
    admin admin
krebs on security
http://www.krebsonsecurity.com/
wp:Brian Krebs

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

Python explosion blamed on pandas
Data science fad just won't die
https://www.theregister.co.uk/2017/09/14/python_explosion_blamed_on_pandas/
Python "Nightmare"
http://news.nationalgeographic.com/news/2009/09/090911-pythons-florida-giant-snakes_2.html

Linux fmt command - usage and examples
https://www.howtoforge.com/linux-fmt-command/

wp:less (Unix)
wp:more (command)
wp:MOST Bus
wp:CAN bus

From pybokeh at gmail.com  Thu Sep 21 23:14:10 2017
From: pybokeh at gmail.com (pybokeh)
Date: Thu, 21 Sep 2017 23:14:10 -0400
Subject: [CentralOH] Pandas Cheat Sheet
Message-ID: <CAOoMBVgKdTSz0Yo9U6-KvG5Lox9wRuQD+rHo7G1w203G03ZLXQ@mail.gmail.com>

Travis at the Python DoJo suggested that I share my Pandas cheat sheet.
I've shared it a some years ago, but thought I share it again.

nbviewer.jupyter.org/github/pybokeh/jupyter_notebooks/blob/master/pandas/PandasCheatSheet.ipynb

- Daniel
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From miller.eric.t at gmail.com  Fri Sep 22 08:09:57 2017
From: miller.eric.t at gmail.com (Eric Miller)
Date: Fri, 22 Sep 2017 08:09:57 -0400
Subject: [CentralOH] Pandas Cheat Sheet
In-Reply-To: <CAOoMBVgKdTSz0Yo9U6-KvG5Lox9wRuQD+rHo7G1w203G03ZLXQ@mail.gmail.com>
References: <CAOoMBVgKdTSz0Yo9U6-KvG5Lox9wRuQD+rHo7G1w203G03ZLXQ@mail.gmail.com>
Message-ID: <CAN67YM58yNMbb5Mtn33iZ3dfDVMF1wF5CQHgqi6JvYDe9mMuiw@mail.gmail.com>

this is awesome, and timely for me as I'm in the middle of the pandas
section of Python for Data Science and Machine Learning Bootcamp.

Thank you!

On Thu, Sep 21, 2017 at 11:14 PM, pybokeh <pybokeh at gmail.com> wrote:

> Travis at the Python DoJo suggested that I share my Pandas cheat sheet.
> I've shared it a some years ago, but thought I share it again.
>
> nbviewer.jupyter.org/github/pybokeh/jupyter_notebooks/blob/master/pandas/
> PandasCheatSheet.ipynb
>
> - Daniel
>
> _______________________________________________
> CentralOH mailing list
> CentralOH at python.org
> https://mail.python.org/mailman/listinfo/centraloh
>
>
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From pybokeh at gmail.com  Fri Sep 22 08:43:20 2017
From: pybokeh at gmail.com (pybokeh)
Date: Fri, 22 Sep 2017 08:43:20 -0400
Subject: [CentralOH] Pandas Cheat Sheet
In-Reply-To: <CAN67YM58yNMbb5Mtn33iZ3dfDVMF1wF5CQHgqi6JvYDe9mMuiw@mail.gmail.com>
References: <CAOoMBVgKdTSz0Yo9U6-KvG5Lox9wRuQD+rHo7G1w203G03ZLXQ@mail.gmail.com>
 <CAN67YM58yNMbb5Mtn33iZ3dfDVMF1wF5CQHgqi6JvYDe9mMuiw@mail.gmail.com>
Message-ID: <CAOoMBVjgsu8Ed8kXbAr9haWgAmUO2Gyp6BWwcrcZs53B3cEH7w@mail.gmail.com>

Glad you like.

You may also be interested in Tom Augsperger's blog series on modern
pandas.  He is major contributor to pandas.

https://tomaugspurger.github.io/

On Sep 22, 2017 8:13 AM, "Eric Miller" <miller.eric.t at gmail.com> wrote:

> this is awesome, and timely for me as I'm in the middle of the pandas
> section of Python for Data Science and Machine Learning Bootcamp.
>
> Thank you!
>
> On Thu, Sep 21, 2017 at 11:14 PM, pybokeh <pybokeh at gmail.com> wrote:
>
>> Travis at the Python DoJo suggested that I share my Pandas cheat sheet.
>> I've shared it a some years ago, but thought I share it again.
>>
>> nbviewer.jupyter.org/github/pybokeh/jupyter_notebooks/blob/
>> master/pandas/PandasCheatSheet.ipynb
>>
>> - Daniel
>>
>> _______________________________________________
>> 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 jep200404 at columbus.rr.com  Sat Sep 23 15:59:00 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Sat, 23 Sep 2017 15:59:00 -0400
Subject: [CentralOH] =?utf-8?q?2017-09-21_=E9=81=93=E5=A0=B4_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz8gT2RvcmFtYTsgc3BhY2VkIHJlcGV0aXRpb24gZmxh?=
 =?utf-8?q?sh_cards=3B_emergent_design=3B_embedding_C++=3B_why_can=27t_joh?=
 =?utf-8?q?nny_read?=
Message-ID: <20170923155900.5a99467a.jep200404@columbus.rr.com>

Refactoring fun:

    How would you write Scheduler._dynOrder() in the following?
    https://github.com/dae/anki/blob/bd414595de971ac29b54d521d734140eee7d80ee/anki/sched.py

>From "The Mirror Pool"
    Largo
    Sanvean

wp:Django (web framework)
wp:Gypsy jazz

wp:Hawthorne effect
wp:Elton Mayo

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

Someone is uncomfortable with tdd doing away with design,
that emergent design will not always lead to optimal results.
Some things just can not be done by committees (or pairs).

wp:Emergent_Design#Emergent_design_in_agile_software_development

Is Design Dead?
https://martinfowler.com/articles/designDead.html

I remembered that there was an article about using C++ in embedded
applications. It talked about using the things that cause no trouble,
and avoiding the things that do cause trouble. I thought it was in
Embedded Systems Journal in the mid 2000s and was by Dan Saks. Since he
gave a presentation at Columbus Code Camp a few years about about
measuring readability of coding styles, I have been looking for that
article. I have not found it, but I have found something similar.

    C++ for Embedded C Programmers
    Dan Saks
    http://www.dansaks.com/talks/ESC-205.pdf

http://info.pillartechnology.com/kata

flash card
wp:Anki (software)
damien elmes
wp:Spaced repetition
https://github.com/dae/anki
turnoffs:
    strong code smell:
        for example, study Finder._order() in
        https://github.com/dae/anki/blob/bd414595de971ac29b54d521d734140eee7d80ee/anki/find.py
    yet refactoring not welcome:
        See https://github.com/dae/anki/blob/bd414595de971ac29b54d521d734140eee7d80ee/README.contributing
    licensing:
        contributors must license changes with BSD license,
        even though code is GNU AGPL, version 3 or later
            is that for dual licensing for private benefit of Damien?

I wonder how Mnemosyne and OpenCards compare.
wp:Mnemosyne (software)
    Python!
    open source! (hopefully only open source)
wp:OpenCards

PEP 8 -- Style Guide for Python Code
https://www.python.org/dev/peps/pep-0008/
pylint
    how to have it automatically re-evaluate code
    when a file changes? (like py.test -f .)

Definitive regular expression dox for Python
6.2. re ? Regular expression operations
https://docs.python.org/3/library/re.htm
learn by reading and experimenting
Jupyter notebooks are great for that.

Mastering Regular Expressions
Third Edition
http://regex.info/book.html
http://shop.oreilly.com/product/9780596528126.do

https://github.com/james-prior/euler
https://github.com/james-prior/cohpy
https://github.com/cohpy

https://www.reddit.com/r/dailyprogrammer/wiki/challenges

Why Can't Programmers.. Program?
https://blog.codinghorror.com/why-cant-programmers-program/

Separating Programming Sheep from Non-Programming Goats
https://blog.codinghorror.com/separating-programming-sheep-from-non-programming-goats/

From jep200404 at columbus.rr.com  Tue Sep 26 11:45:56 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Tue, 26 Sep 2017 11:45:56 -0400
Subject: [CentralOH] Robot Meeting Tonight; Autonomous Python Car
Message-ID: <20170926114556.21d3eacc.jep200404@columbus.rr.com>

robots meeting tonight
unescorted soul bags welcome

    Joint Meetup with VR Columbus: VR demo and robotics racing in the works
    https://www.meetup.com/AutonomyHub/events/243521906/

DIY autonomous car (that uses Python)

    Donkey Car
    http://www.donkeycar.com/

I don't know that a donkey car will be at tonight's meeting.
We should have a demo at a Python meeting!

Meeting at the Murphy Building reminds me of an eponymous law.

From jep200404 at columbus.rr.com  Thu Sep 28 16:21:57 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Thu, 28 Sep 2017 16:21:57 -0400
Subject: [CentralOH] =?utf-8?q?2017-09-25_=E6=9C=83=E8=AD=B0_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz86IEVyaWsgV2VsY2ggSnVweXRlciBMYWIgRGFzaw==?=
Message-ID: <20170928162157.40404fd2.jep200404@columbus.rr.com>

Thanks to Christoph Baker and Pillar for their generous prosperity.
They gave us plenty of pizza, salad, cookies, and beverages.
There was also hummus for the first time.

techelevator

data analysis

has been coming for about a year and a half
likes doing everything in python

terminal size

    zach at cohpy:~$ echo $LINES $COLUMNS
    26 100
    zach at cohpy:~$ grep 'LINES\|COLUMNS' ~/.bashrc
    # update the values of LINES and COLUMNS.
    export LINES
    export COLUMNS
    zach at cohpy:~$ python3
    Python 3.5.2 (default, Nov 17 2016, 17:05:23) 
    [GCC 5.4.0 20160609] on linux
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import os
    >>> os.environ['LINES']
    '26'
    >>> os.environ['COLUMNS']
    '100'
    >>> 
    zach at cohpy:~$ 

    xdpyinfo | less

one of last years challenges (the graphical one) had discussion of
portable way of determining screen size in pixels

has background in physics
work in dublin now
python for ai and neat little projects
want something done quickly and don't know how to do it in bash

about 32 folks tonight

python booth at ohio linux festival 2017-09-30

    need to have collection of python books at olf

2017-10-30 monthly meeting:

    Michael Handler and Leonard
    embedded train track sensor
    and did real-time analysis

2017-10-14 columbuscodecamp.com

Christoph Baker
folks should apply to pillar job interview process

Erik Welch

https://github.com/eriknw
    cytoolz
    dask-patternsearch
    eqpy
    benchtoolz
    metafunc
https://twitter.com/eriknwelch
works on pytoolz and cytoolz (faster)
dask https://dask.pydata.org/en/latest/

dask
python3
python2
django
pandas
jupyter notebook

conda
dask
numba
bokeh
anaconda
holoviews

came for the language; stayed for the community

JupyterLab

    human-centered interactive 
    much coolness

has a bias for making things fast

holoviews

jupytercon (was last month in nyc)
https://github.com/OpenGeoscience/geonotebook
    A Jupyter notebook extension for geospatial visualization and analysis

nbextensions

    ExecuteTime
    zenmode
        pretty background
        more full screen
        hides header
    code pretty
        little hammer icon
    hide header
    variable inspector
    ExecuteTime
        automatically shows execution time for each cell
    localhost:8888/tree?#nbextensions_configurator

%qtconsole
    partially works for me
    have to restart kernel after qt window exists

    https://jupyter.org/qtconsole/stable/

core jupyter team uses conda to build and share packages

!conda list
!conda install -c conda-forge jupyter jupyter_contrib_nbextensions

jupyter-contrib-nbextensions.readthedocs.io/en/latest/

import seaborn as sns
df = sns.load_dataset('iris')
df  # show prettier dataframe

# cool two-dimensional plots
sns.jointplot(df.sepal_length, df.sepal_width)
sns.jointplot(df.sepal_length, df.petal_length)
sns.jointplot(df.sepal_length, df.petal_length, kind='kde')

from __future__ import print_function, division
from sympy import *
init_printing()
ell_min, ell, ell_max = symbols('ell_min,ell,ell_max', integer=True)
summ = summation((2*ell * 1), (ell, ell_min, ell_max))
summ
ell_min

github.com/OpenGeoscience/geonotebook
    scroll down for eye candy

jupyterhub
    a "thing explainer" overview

EM GeoSci
    electromagnetics
https://em.geosci.xyz/index.html

erik likes gnuplot
%gnuplot
https://github.com/has2k1/gnuplot_kernel/blob/master/examples/gnuplot-kernel.ipynb
http://nbviewer.jupyter.org/github/has2k1/gnuplot_kernel/blob/master/examples/gnuplot-kernel.ipynb

https://github.com/Calysto/notebook-extensions
    notebook widgets

from ipyleaflet import Map

Map(center=[39.975, -82.998], zoom=11)

from pythreejs import *
Renderer(camera=c, scene=scene, control=[OrbitControls(controlling=c)])

%time funky_func()

%timeit funky_func()

%%time
%%timeit
funky_func()

%%prun -s cumulative -l 5
funky_func()

%load_ext snakeviz

%snakeviz funky_func()

    sunburst versus icicle

%load_ext line_profiler

%lprun -f funky_func funky_func()

    sunburst versus icicle

%load_ext memory_profiler

%memit?

%memit funky_func

# %mprun -f funky_func funcy_func()  # needs to be from a file

github.com/has2k1/gnuplot_kernel/blob/master/examples/gnuplotkernel/ipynb
Unofficial Jupyter Notebook Extensions
https://jupyter-contrib-nbextensions.readthedocs.io/en/latest/

jupyter.org/widgets.html

folium python data

webgl works on his machine now

%time funky_func()
%timeit funky_func()
%%time
%%timeit
funky_func()

%%prun -s cumulative -a 5
funky_func()

%load_ext snakeviz

%snakeviz funky_func()

%load_ext line_profiler

%lprun -f funky_func funky_func()

%load_ext emory_profiler

%memit funky_func()

%memit?

view -> cell toolbar -> edit metadata

tag cells (named cells)

scroll to tag in n seconds
goto('bottom', time=10)

goto('one', then-{'tags': 'two', 'then': {'tags': 'three}})

class GotoException(Exception):

run cell magic (with javascript code)

goto('x', 'y')

can break loop across multiple cells

    # another cell
    it = range(10)
    val = next(it)

    # another cell
    loop_begin tag

    # another cell
    try:
        val = next(it)
    except Exception:
        goto('loopend')
    else:
        goto('loopbegin')

    # another cell
    loopend tag

goto(tagname)

$ jupyter lab

next generation of jupyter notebook
    alpha

new user interface for jupyter notebook
allowing users to arrange multiple jupyter notebooks,
text editors, terminals, output areas, etc.
on a single page with multiple panels and tabs
in one integrated application.

    tiled panes
    a pane can have multiple tabs

various jupyter notebooks
various python 
various terminal windows (bash)
various text editor windows

run code interactively outside of a notebook in a "Code Console"
and connect one to a text file

right click on a markdown file and "open with..." a live markdown viewer
    very handy!!!

double click on csv files to view them as a nicely formatted table

drag and drop notebook cells within a notebook or between notebooks

multicursor support (apple)

large rewrite

    flexibility and speed

sns.kdeplot?
sns.plotting_context

inspector in another tab: cool!

does not bog down when viewing large amount of data

    lazy loading huge table
    https://phosphorusjs.github.io/examples/datagrid/

all done over a single connection with ssh forwarding

xonsh (pronounced konsh)

editor -> key map -> vim (or default, emacs, or subline text)

openwith -> markdown preview

live rendering of markdown
how about for rst?

editor language support: only those beginning with a-c fit on screen

can rebind just about anything

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

dask: parallel python

multiprocessing
concurrent

import dask
import dask.array as da

a = da.random.random((2000, 2000), chunks=1000)

a.visualize()
(a + a.T).vizualize()
(a + (a.T + 1)).vizualize()
dask.visualize(
    (a + (a.T + 1)).sum(axis=0),
    (a + (a.T + 1)).sum(axis=1),
    (a + (a.T + 1)).sum(),
)
dask.compute(
    (a + (a.T + 1)).sum(axis=0),
    (a + (a.T + 1)).sum(axis=1),
    (a + (a.T + 1)).sum(),
)

from dask.diagnostics import Profiler, ProgressBar

ProgressBar().register()

with Profiler() as prof:
    dask.compute(
        (a + (a.T + 1)).sum(axis=0),
        (a + (a.T + 1)).sum(axis=1),
        (a + (a.T + 1)).sum(),
    )

prof.visualize()

bokeh is a plotting library
bokeh is pronounced like bo-kay
wp:Bokeh

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

bokeh.pydata.org/en/latest/

from dask.distributed import Client
client = Client()
client

    compare to celery with rabbitmq

127.0.0.1:88787/profile
    dask stuff

ref = dask.compute(
    (a + (a.T + 1)).sum(axis=0),
    (a + (a.T + 1)).sum(axis=1),
    (a + (a.T + 1)).sum()
)

MacBook Pro (Retina, 15-inch, Mid 2014)
2.5 GHz intel core i7
16GB 1600MHz DDR3
nvidia geforce gt 750M 2048 MB
intel iris pro 1536 MB

from concurrent import futures

ex = futures.ThreadPoolExecturo()

import time
def slow_inc(x):
    time.sleep(1)
    return x + 1

future = ex.submit(slow_inc, 1)
future.result()
results = ex.map(slow_inc, range(100))
# rvs = [x.result() for x in results]
results = ex.map(slow_inc, range(100))
list(results)
f = client.submit(slow_inc, 1)
f.done()
g = client.submit(slow_inc, f)
g
g.result()
client.map

python is growing

    https://stackoverflow.blog/2017/09/06/incredible-growth-python/
    https://stackoverflow.blog/2017/09/14/python-growing-quickly/

python's scientific stack

    astropy
    boipython
    dipy
    nipy
    sunpy
    scikit learn
    statsmodel
    sympy
    networkx
    scikit-image
    pymc3
    xarray
    bokeh
    matplotlib
    pandas
    scipy
    dask
    ipython
    numpy
    jupyter
    cython
    numba
    python

python still limited by gil and harder to scale

    limited to a single thread
    limited to in-memory data

dask

    designed to parallelize the python ecosystem
        handles complex algorithms
        co-developed with pandas/sklearn/juptyer teams
        familiar apis for python users
    scales
        scales from multicore to 1000-node clusters
        resilience, responsive, and real-time

    parallelizes numpy, pandas, sklearn
        satisfies subset of these apis
        uses these libraries internally
        co-developed with these teams

    task scheduler supports custom algorithms
        parallelize existing code
        build novel real-time systems
        arbitrary task graphs with data dependencies
        same scalability

    demo

        high level: scaling pandas
            same pandas look and feel
            uses pandas under the hood
            scales nicely onto many machines
        low level: arbitrary task scheduling
            parallelize normal python code
            build custom algorithms
            react real-time

        demo developed with
            dask-kubernetes
            google compute engine
            github.com/dask/dask-kubernetes

        Standard Dask Demo
        https://youtube.com/watch?v=ods97a5Pzw0

    why do people choose dask

        familiar with python
            drop-in numpy/pandas/sklearn apis
            native memory environment
            easy debugging and diagnostics
        have complex problems
            parallelize existing code without extension rewrites
            sophisticated algorithms and systems
            real-time response to small-daa
        scales up and down
            scales to 1000-node clusters
            also runs cheaply on a laptop

import pandas as pd
import dask.dataframe as dd

http://thefaradayproject.com/

continuum analytics changed their name to anaconda

negative decimal (radix is -10)

From betsy at python.org  Thu Sep 28 17:06:07 2017
From: betsy at python.org (Betsy Waliszewski)
Date: Thu, 28 Sep 2017 14:06:07 -0700
Subject: [CentralOH] PyCon 2018 CFP is Open!
Message-ID: <CAKMnukqUhE3PE7yhKp7u=nok=CnWScTo0HcVuqUa1+bSS4P4XA@mail.gmail.com>

Hi,

Woohoo! The PyCon 2018 CFP is open!

Here is a link to all the information: https://us.pycon.org/2018/speaking/

   - Tutorial proposals ? deadline is 24 November 2017 AoE.
   - Talk, Poster, and Education Summit proposals ? deadline is 3 January
   2018 AoE.

If you know of a company who might be interested in sponsoring, feel free
to share our prospectus: https://us.pycon.org/2018/sponsors/prospectus/. An
email intro to me would be wonderful.

Cheers,

Betsy
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From jep200404 at columbus.rr.com  Fri Sep 29 17:23:36 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Fri, 29 Sep 2017 17:23:36 -0400
Subject: [CentralOH] =?utf-8?q?2017-09-28_=E9=81=93=E5=A0=B4_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz8gcmVjdXJzaXZlIHByaW1lIHNlYXJjaDsgd2F0Y2hp?=
 =?utf-8?q?ng_refactoring=3B_coming_events?=
Message-ID: <20170929172336.038a6643.jep200404@columbus.rr.com>

https://github.com/joseph-albrecht/Project-Euler
https://github.com/joseph-albrecht/Project-Euler/blob/master/Problem%203%20-%20Largest%20Prime%20Factor.ipynb

doj at sbc:~$ cat .gitconfig
...

[alias]
        co = checkout
        ci = commit
        st = status
        br = branch
        hist = log --pretty=format:\"%h %ad %s%d [%an]%n%P parents%n%T tree%n\" --graph --date=iso
        hist = log --pretty=format:\"%h %ad %s%d [%an]%n\" --graph --date=short
        hist = log --pretty=format:\"%h %ad %cd %s%d [%an]%n\" --graph --date=iso-local
        hist = log --pretty=format:\"%h %ad %s%d [%an]\" --graph --date=iso-local
        hist = log --pretty=format:\"%h %ad %s%d [%an]\" --graph --date=raw
        hist = log --pretty=format:\"%h %ad %cd %s%d [%an]\" --graph --date=format-local:'%Y-%m-%d %H:%M:%S'
        hist = log --pretty=format:\"%h %ad %s%d [%an]\" --graph --date=format-local:'%Y-%m-%d %H:%M:%S'
        type = cat-file -t
        dump = cat-file -p
        df = diff --color
        dw = diff --color --word-diff
        dm = difftool -t meld
        dy = difftool -t meld -y
doj at sbc:~$ 

git clone https://github.com/james-prior/kraftur-math-game.git
cd kraftur-math-game
git co jep-dev
git hist --color=always | grep --color=always '([^)].*)\|$'
git hist | tac | awk 'NR > 1 {print $2}' | while read h; do git difftool -t meld -y "$h"^ "$h" simpleMathGame.py;done

recent notebooks: (not all are posted yet)

    http://nbviewer.jupyter.org/github/james-prior/cohpy/blob/master/20170927-dojo-qtconsole-not-happy.ipynb
    http://nbviewer.jupyter.org/github/james-prior/cohpy/blob/master/20170928-dojo-iterating-over-dictionary-gets-keys.ipynb
    http://nbviewer.jupyter.org/github/james-prior/cohpy/blob/master/20170928-dojo-iter-sentinel-else.ipynb
    http://nbviewer.jupyter.org/github/james-prior/cohpy/blob/master/20170928-dojo-refactoring-kraftur-math-game.ipynb
    http://nbviewer.jupyter.org/github/james-prior/cohpy/blob/master/20170928-dojo-references-map-zip_longest-fstrings.ipynb

wp:The Unix Programming Environment

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

V. Anton Spraul's Think Like a Programmer, Python Edition
http://www.linuxjournal.com/content/v-anton-sprauls-think-programmer-python-edition

Open source-based business lessons from a seasoned CEO
https://opensource.com/article/17/9/qa-evan-powell

http://thefaradayproject.com/concept/

xdpyinfo | less

Facebook Relents on React.js License Issue
http://windowsitpro.com/open-source/facebook-relents-reactjs-license-issue

autonomous car uses Python

    Donkey Car
    http://www.donkeycar.com/

    Joint Meetup with VR Columbus: VR demo and robotics racing in the works
    https://www.meetup.com/AutonomyHub/events/243521906/

Ohio Linuxfest 2017
2017-09-29 to 2017-09-30

Columbus Code Camp
2017-10-14
http://columbuscodecamp.com/

DevOps Days
https://www.devopsdays.org/events/2017-ohio/
Wednesday, Nov 8, 2017 - Thursday, Nov 9, 2017
The Bluestone

Machine Vision with Python
    openmv (open machine vision)
    https://openmv.io/
    https://github.com/openmv/openmv
    (opencv is too slow)

What are the 7 stages of becoming a Python programmer?
The 7 stages of becoming a Go programmer
https://opensource.com/article/17/9/seven-stages-becoming-go-programmer

Microsoft is Doing to ?Open Source? (OSI) What it Did to W3C
http://techrights.org/2017/09/28/osi-and-microsoft/

https://www.reddit.com/r/dailyprogrammer/comments/6zvjre/20170913_challenge_331_intermediate_sum_of_digits/

From jep200404 at columbus.rr.com  Fri Sep 29 18:21:53 2017
From: jep200404 at columbus.rr.com (jep200404 at columbus.rr.com)
Date: Fri, 29 Sep 2017 18:21:53 -0400
Subject: [CentralOH] =?utf-8?q?2017-08-28_=E6=9C=83=E8=AD=B0_Scribbles_?=
 =?utf-8?b?76SY5pu4L+aDoeaWhz86IE5laWwgTHVkYmFuIFB5dGhvbiB2cyB0aGUgSGFy?=
 =?utf-8?q?dware=3B_freebsd_raspberry_pi2_cnc_real_I/O?=
Message-ID: <20170929182153.0013ceed.jep200404@columbus.rr.com>

Thanks to christoph baker and pillar for their generous hospitality
there was pizza, salad, cookies, and beverages for all

devopsdays ohio in columbus 2017-11-08 and 2017-11-09
https://www.devopsdays.org/events/2017-ohio/welcome/

29 folks

columbus state
software development
python

database admin work for state of ohio
powershell
python
interested in anyone who has used ironpython
for integration with C#/.net

bioinformatics at ohio state
python is for 90% of what I do
R is for other 10%

september
erik welch will be presenting tips and tricks for jupyter notebooks

october
len and mike handler
python data analysis
temperature and humidity sensor
graph it in real time
len did back end
mike did front end
dallas one-wire interface sensor

first monday in december for social
maybe meet at smokehouse brewing company

january
travis will talk about async await and curio library
which was written by david beazley (dabeaz)

###############################################################################

Python vs the Hardware
by Neil Ludban
https://bitbucket.com/nludban/python-vs-the-hardware/
    private repo?

theme: python and embedded systems
several small python / freebsd / raspberry pi projects

He used Raspberry Pi 2, because that version is best supported by FreeBSD.

usb hid
i2c
gpio

part 1 usb hid

build cnc machine
free usb game controller
12 buttons
got it to work with python
https://pypi.python.org/pypi/libusb1

adafruit circuitpython
https://circuitpython.readthedocs.io
beta
micropython derivative
attaches as USB device
    keyboard
    mouse
    midi

feather m0 express
metro m0 express

the "right way" == the "wrong way"
supposed to
- get a device driver
  - find existing
  - modify it
  - write from scratch
- configure kernel
- one of
  - write python module to interface to kernel device
  - configure x11 to ignore device
or
  - configure x11 to enable device
  - write python module to interface to x11 device
  - application now revolves around x11

1-bit message for a button click

sudo usbhidctl -f /dev/uhid1 -a -v -l

import usb1
import libusb1

part 1

freebsd.org 11.1 july 2017
- production servers
- high end embedded systems

products based on freebsd

- mac os x
- juniper routers
- netflix
- game consoles: ps3, ps4, switch

freebsd raspbian

all i/o works on RPi2, dunno about RPi3

x11 not running yet
ARM6/7 ports confusion
no official (RPi) pre-built packages
native builds are slow

#hardware build tools

usb data capture www.saleae.com
mixed signal oscilloscope www.rigolna.com

agilent 54622D mixed signal oscilloscope
- circa 2000
- 2 analog
- 16 digital
  - some serial protocol support
  - good parallel bus support
- excellent real-time hi-res display
- https://www.youtube.com/watch?v=aVNfFewFn_Y

#part 3 - i2c for python on freebsd

found at microcenter
pimoroni four-letter-phat $12
    four 15-segment LED displays
    f007347
    pimoroni

- pure python driver from the vendor
  https://github.com/pimoroni/fourletter-phat
- uses https://github.com/pimoroni/py-smbus
  - which uses linux #include <linux/i2c-dev.h>

freebsd
- wp:SMB
- SMB is a subset of I2C

- no python i2c or smbus for freebsd
- freebsd i2c is spelled iic

man 4 iic

only did single byte reads and writes
did not need to do multi-byte reads or writes

plan #1

- python module iic.py
  - class IIC implemented with
    - file descriptor from os.open
    - I/O using os.read, os.write

- C extension module (_bsdiic.c) for ioctl
  - I2CSADDR

- dummy module (smbus.py)
  - class SMBus with methods:
    - open()
    - set_address()
    - write_i2c_block_data()

_bsdiic.c

#include <Python.h>
#includ <dev/iicbus/iic.h>

static
PyObject * foo(
    PyObject *self,
    PyObject *args
) {
    PyArg_ParseTuple(args, "ii", &fd, &addr);
    PyErr_SetFromErrno(PyExc_IOError);

    Py_INCREF(Py_None);
    return Py_None;
}

static PyMethodDef foo_methods[] = {
    {
        "set_slave_address",
        foo,
        METH_VARARGS,
        "I2CSADDR"
    }, {
        0
    }
};

static struct PyModuleDef foo_module =
{
    PyModuleDef_HEAD_INIT,
    "_bsdiic",
    NULL,
    -1,
    foo_methods,
    0
};

PyObject *
PyInit__bsdiic(void)
{
    PyObject *m = PyModule_Create(&bsdiic_module);
}

smbus.py

from iic ipmort IIC

class SMBus:

setup.py

#!/usr/bin/env python3.6

from distutils.core import setup, Extension

/usr/src/sys/arm/broadcom/bcm2835/bcm2835_bsc.c

    NOTE: Important detail uncovered by web searches:
    this kernel driver does not implement read and write.

static device_method_t bcm_bsc_methods[] = {
...
    /* iicbus interface */
    DEVMETHOD(iicbus_reset,             bcm_bsc_iicbus_reset),
    DEVMETHOD(iicbus_callback,          iicbus_null_callback),
    DEVMETHOD(iicbus_transfer,          bcm_bsc_transfer),
...

(what does my C code read talking to thermal sensor use?)

Plan #2

- Python class IIC
  - Verify data is bytes
  - remember slave_address
- C extension adds read and write functions using I2CRDWR ioctl

iic.py

_bsdiic.c

static
PyObject *
bsdiic_write(
    PyObject *self,
    PyObject *args
) {
    PyObject *obj;
    !PyArg_ParseTuple(args, "ii0", &fd, &addr, &obj))
    PyBytes_Check(obj)
    PyBytes_Size(obj)
    PyErr_SetString(PyExc_ValueError, "hello world");
    PyBytes_Size(obj);
    PyBytes_AsString(obj);
    PyErr_SetFromErrno(PyExc_OSError);
    Py_INCREF(Py_None);
}

_bsdiic.c

had to shift I2C address one bit left

PyBytes(obj)
(uint8_t *)PyBytes_AsString(Obj)

demo has pirate theme
https://github.com/pimoroni/fourletter-phat/tree/master/examples
https://github.com/pimoroni/fourletter-phat/blob/master/examples/demo.py
https://github.com/pimoroni/fourletter-phat/blob/master/examples/countdown.py

# Part 4 GPIO for Python on FreeBSD

- found pimoroni displayotron hat at microcenter for about $25
  https://shop.pimoroni.com/products/display-o-tron-hat
  https://github.com/pimoroni/displayotron

  - lcd driver (spi data; gpio select and reset)
  - capacitive touch interface (i2c data; gpio ???)
  - backlight driver (i2c data)

  - already have i2c
  - need gpio
  - can implement (slow) SPI over GPIO

existing python packages

- https://pypi.python.org/pypi/RPi.GPIO
  - Raspberry Pi and Linux specific
    - memory mapped I/O device access
    - mostly C code (~3k lines)

- https://github.com/gonzoua/freebsd-gpio
  - not maintained, suggests following:

- https://github.com/evadot/fbsd_gpio_py
  - wrapper for libgpio
  - uses CFFI (C foreign Function Interface for Python)
    https://cffi.readthedocs.io/
    looks like write by someone trying out a bunch of new things in Python
    without catching on to what one is really supposed to do
    as opposed to what one can do
    neil hopes he never sees CFFI again
  - throws exceptions while handling exceptions
  - clunky interface
    pin = getattr(controller, 'pin 42')
        (arduinoesque)
  - properties with major side effects:
    pin.name = 'foobar'

freebsd options

- search for detected devices
- kernel supplied devices
- system header files

dmesg | grep -i gpio

ls -l /dev/gpio*
/dev/gpioc0
man 8 gpioctl  ;# note wrong section
sudo gpioctl -l -v

man 3 gpio
came out of netbsd originally?

more questions

- sysctl or libgpio?
  - sysctl is low level
  - libgpio requires gpio_handle_t
- result of setting conflicting flags?
  - last takes precedence?
  - error?
- after more searching:
  - nothing gained with libgpio
    - very thin wrapper over ioctl()s
  - kernel device driver has implicit priorities
    additional cpio knobs supported through sysctl(8)

/usr/src/lib/libgpio/gpio.c
/usr/src/sys/arm/broadcom/bcm2835/bcm2835_gpio.c

sysctl -a | grep -i gpio

came from intel

so he wrote is own interface

a gpio example

    NOTE: The biggest requirement is a clean Pythonic API.
    Test first by writing a small but complete application.
    (Everything should be built top-down, except the first time.)
    ("Facade" design pattern.)

import gpio

c = gpio.open('/dev/gpioc0')
for pin in c.list_pins():
    print(pin)

bcm2 = c.get_pin(number=2)      # (i2c SDA / header pin 3)
bcm3 - c.get_pin(name='pin 3')  # (i2c SCL / header pin 5)

# bug in following?
# should write initial value before configuring for output?

with bcm2.configure() as pin_config:
    pin_config.output = True
    pin_config.initial = 0  # Why not 1?

with bcm3.configure() as pin_config:
    pin_config.output = True
    pin_config.initial = 0  # Why not 1?

while True:
   bcm2.set(1)  # 1,0
   bcm3.set(1)  # 1,1
   bcm2.set(0)  # 1,0
   bcm3.set(0)  # 0,0

# above loop ran at 10.7 kHz (four pin.set() calls)
# neil did not notice jitter

but first, some refactoring

    NOTE: Created a top-level "pybsd" package to contain iic and gpio
    sub-projects. To avoid changing application code smbus and RPi stay
    at the top level

pybsd/gpio/__init__.py

    NOTE: The package __init__ exports the public interfaces.

pybsd/gpio/constants.py

    NOTE: Copying constant definitions from C to a more convenient
    namespace. XXX import _bsdgpio.constants as ?

pybsd/gpio/controller.py

    NOTE: The GPIO Controller manages the file descriptor and
    provides access to individual pins.

pybsd/gpio/pin.py

    NOTE: The Pin class is supported by Flags, Capabilities,
    and Configuration.

    NOTES: Configuration extends the read-only Flags properties with
    setter properties.

class Flags

    @property

class Capabilities(Flags)

class Configuration(Flags)

    @Flags.input.setter
    def input(self, yes_no)

class Pin

_bsdgpio.c

    NOTE: Mostly boilerplate; abridged to highlight new techniques.

#include <Python.h>
#include <sys/gpio.h>

static
PyObject *
bsdgpio_get_pin_config(
    PyObject *self,
    PyObject *args
) {
    PyArg_ParseTuple(args, "ii", &fd, &pin_number)
    PyErr_SetFromErrno(PyExc_IOError)
    PyObject *t = PyTuple_New(3);
    PyTuple_SetItem(t, 0, PyBytes_FromString(gp.gp_name));
    PyTuple_SetItem(t, 1, PyLong_FromLong(gp.gp_caps));
    PyTuple_SetItem(t, 2, PyLong_FromLong(gp.gp_flags));
}

    PyObject *rv = (gr.gp_value ? Py_True : Py_False);
    Py_INCREF(rv);
    return rv;

PyObject *
PyInit__bsdgpio(void)
{
    PyObject *m = PyModule_Create(&bsdgpio_module);
    PyModule_AddIntConstant(m, "PIN_INPUT", GPIO_PIN_INPUT);
    PyModule_AddIntConstant(m, "PIN_OUTPUT", GPIO_PIN_OUTPUT);
    PyModule_AddIntConstant(m, "PIN_OPEN_DRAIN", GPIO_PIN_OPEN_DRAIN);
    PyModule_AddIntConstant(m, "PIN_PUSHPULL", GPIO_PIN_PUSHPULL);
    PyModule_AddIntConstant(m, "PIN_TRISTATE", GPIO_PIN_TRISTATE);
}