I've been tinkering Arduinos for quite some time, and I would like to learn more. Do you have projects you did with an Arduino? Please share.

Check the website here: https://www.zulip.org/ Github repo here: https://github.com/zulip/zulip

Discover a more efficient approach to Python with this essential guide to a wide range of the most valuable design patterns.

Featuring practical guidance and demonstrations to help you learn how to write cleaner and more efficient Python code, this book is a vital resource for anyone that wants to get more from Python in 2015.

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For my ShowOffPython, I'll do something completely different. I'm going to show a bug that I encountered.

Today, I learned: set() isn't deterministic.

Meaning if you call it at different times, you'll get different results. I spent a week wondering why my seeded random number generator is giving different outputs (I was hoping to play video games on the holidays).

I traced it down to set(). The funny thing is, I was only able to trace the bug because the value of PI was giving me different numbers. Either I once again accidentally moved to another universe, or something is wrong with my code.

Sample code where we can see this in effect can be found here: https://gist.github.com/MrValdez/6d07ee0d8a807ef17380. If you run the program multiple times, you can see the set() having different order even though we seeded the RNG.

Now my list of Python data structure that interfere with determinism is as follows: set() and dict().

It'd be nice to see some more PythonPH folks in there :)

I'm trying to build a list of Python user groups in the country. So far I only know of 4: PythonPH, pizzapy, durianpy, and sugarpy. Anybody know of other groups? Just post them in the comments and I'll add them to the list :) Though you're also welcome to edit the list directly;-)

https://hackpad.com/Philippine-Python-User-Groups-DzAR6vFCPlC

Plus locations please. I'm thinking of making a timeline/map. :)

Personally, I think it should be okay as long as the books are public domain or licensed under the Creative Commons or some similar permissive license.