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does somebody know, why the argparse module didn't make it in python 3? it's new in python 2.7, but the 2.x branch is running out with 2.7. it makes no sense to me not to support it in the actual python 3 branch.
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asked Sep 28 '10 22:09
The Python argparse library was released as part of the standard library with Python 3.2 on February the 20th, 2011. It was introduced with Python Enhancement Proposal 389 and is now the standard way to create a CLI in Python, both in 2.7 and 3.2+ versions.
It's fine to put the import argparse within the if __name__ == '__main__' block if argparse is only referred to within that block.
The argparse module makes it easy to write user-friendly command-line interfaces. The program defines what arguments it requires, and argparse will figure out how to parse those out of sys.argv . The argparse module also automatically generates help and usage messages.
The argparse module in Python helps create a program in a command-line-environment in a way that appears not only easy to code but also improves interaction. The argparse module also automatically generates help and usage messages and issues errors when users give the program invalid arguments.
It will be in Python 3.2. It was just added in Python 2.7, which was released just this July; Python 3.2 will be the next 3.x release after that date.
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argparse is in Python 3, 3.2 to be specific. See also: http://www.python.org/dev/peps/pep-0389/
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