#!/usr/bin/env python3
import sys
from typing import List


def prof_main(argv: List[str]) -> int:
    import hotshot.stats  # type: ignore[import]

    def usage() -> int:
        print('usage: %s module.function [args ...]' % argv[0])
        return 100
    args = argv[1:]
    if len(args) < 1:
        return usage()
    name = args.pop(0)
    prof = name+'.prof'
    i = name.rindex('.')
    (modname, funcname) = (name[:i], name[i+1:])

    # Type error: fromlist expects sequence of strings; presumably the intent
    # is to retrieve the named module rather than a top-level package (as in
    # "when a non-empty fromlist argument is given...").
    module = __import__(modname, fromlist=1)  # type: ignore[arg-type]

    func = getattr(module, funcname)
    if args:
        args.insert(0, argv[0])
        profile = hotshot.Profile(prof)
        profile.runcall(lambda: func(args))
        profile.close()
    else:
        stats = hotshot.stats.load(prof)
        stats.strip_dirs()
        stats.sort_stats('time', 'calls')
        stats.print_stats(1000)
    return 0


if __name__ == '__main__':
    sys.exit(prof_main(sys.argv))