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How to pass arguments to main function within Python module?

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How to pass arguments to main function within Python module?

  1. How to pass arguments to main function within Python module?

    This looks correct to me, and yes if you're looking to use this as a module you would import main. Though, it would probably be better to name it in a more descriptive way.

  2. pass arguments to main function within Python module

    This looks correct to me, and yes if you're looking to use this as a module you would import main. Though, it would probably be better to name it in a more descriptive way.

Method 1

This looks correct to me, and yes if you’re looking to use this as a module you would import main. Though, it would probably be better to name it in a more descriptive way.

To clarify how __main__ and the function main() works. When you execute a module it will have a name which is stored in __name__. If you execute the module stand alone as a script it will have the name __main__. If you execute it as part of a module ie import it into another module it will have the name of the module.

The function main() can be named anything you would like, and that wouldn’t affect your program. It’s commonly named main in small scripts but it’s not a particularly good name if it’s part of a larger body of code.

In terms letting a user to input arguments when running as a script I would look into either using argparse or click

An example of how argparse would work.

if __name__ == '__main__':
    import argparse

    parser = argparse.ArgumentParser(description='Create a ArcHydro schema')
    parser.add_argument('--workspace', metavar='path', required=True,
                        help='the path to workspace')
    parser.add_argument('--schema', metavar='path', required=True,
                        help='path to schema')
    parser.add_argument('--dem', metavar='path', required=True,
                        help='path to dem')
    args = parser.parse_args()
    main(workspace=args.workspace, schema=args.schema, dem=args.dem)

Summery

It’s all About this issue. Hope all Methods helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which Method worked for you? Thank You.

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