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Python

Python from your first script to code you can maintain. Start here if you have never programmed.

Any category Programming2 Python 2
Any topics Automation and Scripting 3 Data Structures and Algorithms 1 Object-Oriented Programming 1 Packaging and Dependencies 4 Performance Optimization 1 Programming Patterns 2 Testing and Debugging 3
Any level Intermediate 2 Advanced 5
Python Programming Patterns Intermediate Clear filters 2 results
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Python Dictionary Comprehensions: When They Help and When They Hurt

A dictionary comprehension builds a dictionary in one line. Good for transforming, filtering and building lookups. Bad for nested logic, side effects and anything that needs error handling. Shorter code is not always better code.

5 min read
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Python if __name__ == "__main__": What It Does and When You Need It

Importing a file runs it. if __name__ == "__main__" keeps a file's script part from running when another file imports it. Use it with a main() function, and know the cases where you don't need it.

4 min read