Check that a requirements.txt file is fully satisfied (including its dependencies) by the current environment. Useful for verifying installs done with `pip install --no-deps`

check-deps

#!/usr/bin/env python
from argparse import ArgumentParser
import pkg_resources


def main():
    parser = ArgumentParser('Check that a requirements.txt file is satisifed '
                            'by the current environment.')
    parser.add_argument('filename')

    args = parser.parse_args()

    with open(args.filename) as f:
        reqs = [line.strip() for line in f if not line.strip().startswith(('#', '--'))]

    pkg_resources.require(reqs)


if __name__ == '__main__':
    main()