Change directory to the directory of a Python script

How do i change directory to the directory with my python script in? So far I figured out I should use os.chdir and sys.argv[0] . I'm sure there is a better way then to write my own function to parse argv[0].

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os.chdir(os.path.dirname(__file__))

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有时__file__没有定义，在这种情况下，你可以尝试sys.path[0]

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os.chdir(os.path.dirname(os.path.abspath(__file__))) should do it.

os.chdir(os.path.dirname(__file__)) would not work if the script is run from the directory in which it is present.

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