Python-idioms-2014-01-16.pdf

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Python Idioms
Safe Hammad
Python Northwest
16 th January 2014
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What is an idiom?
“The speciic grammatical, syntactic, and
structural character of a given language.”
“A commonly used and understood way of
expressing an fact, idea or intention.”
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Why care about Python idioms?
"Programs must be written for people to read, and
only incidentally for machines to execute."
- Abelson & Sussman, SICP
“There should be one - and preferably only one -
obvious way to do it.”
- Tim Peters, The Zen of Python (PEP 20)
● The use of commonly understood syntax or coding
constructs can aid readability and clarity.
● Some idioms can be faster or use less memory than
their “non-idiomatic” counterparts.
● Python's idioms can make your code Pythonic!
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Ten idioms
(In no particular order)
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1. Make a script both
importable and executable
if __name__ == '__main__':
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