is it bad convention to call sys.argv from somewhere besides main function in python -

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I am writing a script and I have a function, call it f () , Which needs one of the command line arguments (a filename that needs to be opened) However, in the main code f () is not directly called

I'm thinking Was it bad coding conference to call sys.argv [1] directly to f () ? If I do not, then I have to give it all the work in the form of an argument which ultimately call f () .

It would be a bad practice to always believe that the needs of your function are available on the command-line- What if this code was implemented in any other way?

A function should declare the input parameter for the data that it needs.

Logic in f () instead of accessing the required sys.argv at the very least, f () Helps make more reusable.


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