List dependencies of Python wheel file

As previously mentioned, .whl files are just ZIP archives. You can just open them and poke around in the METADATA file.

There is a tool, however, that can make this manual process a bit easier. You can use pkginfo, which can be installed with pip.

CLI usage:

$ pip install pkginfo$ pkginfo -f requires_dist psutil-5.4.5-cp27-none-win32.whlrequires_dist: ["enum34; extra == 'enum'"]

API usage:

>>> import pkginfo>>> wheel_fname = "psutil-5.4.5-cp27-none-win32.whl">>> metadata = pkginfo.get_metadata(wheel_fname)>>> metadata.requires_dist[u"enum34 ; extra == 'enum'"]

I just tried to unzip (not gunzip) a wheel package I had lying around. The packagename-version.dist-info/METADATA file contains a list of Requires-Dist: entries that contain the compiled requirements from setup.py.

Here's a minimal snippet that doesn't require you to have any external tool (unzip, gzip or similars), so it should work in both *nix/windows:

wheeldeps.py:

import argparsefrom zipfile import ZipFileparser = argparse.ArgumentParser()parser.add_argument('filename')args = parser.parse_args()archive = ZipFile(args.filename)for f in archive.namelist():    if f.endswith("METADATA"):        for l in archive.open(f).read().decode("utf-8").split("\n"):            if 'requires-dist' in l.lower():                print(l)

Example:

> python wheeldeps.py psutil-5.4.5-cp27-cp27m-win_amd64.whlRequires-Dist: enum34; extra == 'enum'