EdmontonPy
Inspired by the Python community, we hope to foster a strong, supportive, and proficient Python community in the Edmonton area.
Edmonton.py
The Edmonton Python User Group
edmontonpy.com
@edmontonpy
edmontonpy.slack.com
Today's talks
Anatomy of an Open Source Python Project: From Idea to World Domination!
by Chris Want
Language Fundamentals - Python Types
by Dustin Grue
Python Events
-
PyCon 2018
May 9-17, Cleveland, OH -
DjangoCon 2018
October 14-19, San Diego, CA
NEXT MEETUP ON JUNE 11TH
Resources
Releases
- No Major Releases to speak of.
Jobs!
- The Organic Box is hiring a designer!
(ask me about it here or on slack) - Fujitsu is hiring devops people and .net developers!
(ask me about it here or both "Michael Dunham" on slack)
Articles
-
Pipenv: A Guide to the New Python Packaging Tool
-
Getting started with Python testing
-
How to have a great first Pycon
-
Python Exceptions: An Introduction
-
An Introduction to Python bytecode
-
Great Benefits of Python Type annotations
- Export Data from PDFs with Python
- Pure Python vs Numpy vs TensorFlow (Benchmarking)
-
Python Tip: Function Argument Defaults
A common Mistake in python is defining the default of an optional argument in the function declaration.
def all_kitten_names(names=[]):
names.append("Ghost")
return names>>> all_kitten_names()
['Ghost']
>>> all_kitten_names()
['Ghost', 'Ghost']
>>> all_kitten_names()
['Ghost', 'Ghost', 'Ghost']
def all_kitten_names(names=None):
if names is None:
names = []
names.append("Gambit")
return names>>> all_kitten_names()
['Gambit']
>>> all_kitten_names()
['Gambit']
>>> all_kitten_names()
['Gambit']
Wrong Way
Right Way
output:
output:
The Reason this happens is that the default value for a function is only evaluated once. This problem arises when you don't give arguments, so do it the right way!
May 2018
By EdmontonPy
