Great post about what to do in Python module scope

Chris McDonough clearly explains what code is appropriate at the module level. In the spirit of "importing code shouldn't have weird side effects", here's his list:

• An import of another module or global.
• Assignment of a variable name in the module to some constant value.
• The addition of a function via a def statement.
• The addition of a class via a class statement.
• Control flow which may handles conditionals for platform-specific handling or failure handling of the above.

And then this great quote: Any other sort of logic inside the top level execution path of a Python module (any code that would be executed during "import") should be regarded with great suspicion and perhaps even loathing.

Here here Chris! Perhaps you should start a Foundation, Crusaders against Suspicious (Python) code.

(I guess this is sort of a retweet, since I didn't want to login to comment)

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