It is a new selection of tips and tricks about Python and programming from my Telegram-channel @pythonetc.
The order of except blocks matter: if exceptions can be caught by more than one block, the higher block applies. The following code doesn’t work as intended:
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It is a new selection of tips and tricks about Python and programming from my Telegram-channel @pythonetc.
Different asyncio tasks obviously have different stacks. You can view at all of them at any moment using asyncio.all_tasks() to get all currently running tasks and task.get_stack() to get a stack for each task.
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Tips and tricks from my Telegram-channel @pythonetc, November 2019
It is a new selection of tips and tricks about Python and programming from my Telegram-channel @pythonetc.
PATH is an environment variable that stores paths where executables are looked for. When you ask your shell to run ls, the shell looks for the ls executable file across all paths that are presented in PATH.
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It is a new selection of tips and tricks about Python and programming from my Telegram-channel @pythonetc.
If you want to iterate over several iterables at once, you can use the zip function (it has nothing to do with ZIP file format):
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It is a new selection of tips and tricks about Python and programming from my Telegram-channel @pythonetc.
If an instance of a class doesn’t have an attribute with the given name, it tries to access the class attribute with the same name.
>>> class A:
... x = 2
...
>>> A.x
2
>>> A().x
2
It is a new selection of tips and tricks about Python and programming from my Telegram-channel @pythonetc.
You can’t mutate closure variables by simply assigning them. Python treats assignment as a definition inside a function body and doesn’t make closure at all.
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It is a new selection of tips and tricks about Python and programming from my Telegram-channel @pythonetc.