python filename to module syntax

as_module

#!/usr/bin/env python
import sys

def main():
    try:
        filename = sys.argv[1]
    except IndexError:
        filename = ''

    if filename.startswith('src/'):
        filename = filename[4:]
    print(filename.replace('.py', '').replace('/', '.'))


if __name__ == '__main__':
    main()