Can pip (or setuptools, distribute etc…) list the license used by each installed package?

Question

I\'m trying to audit a Python project with a large number of dependencies and while I can manually look up each project\'s homepage/license terms, it seems like most OSS pac

Answer 1

A slightly better version for those running jupyter - uses Anaconda defaults - no install needed

import pkg_resources
import pandas as pd

def get_pkg_license(pkg):
    try:
        lines = pkg.get_metadata_lines('METADATA')
    except:
        lines = pkg.get_metadata_lines('PKG-INFO')

    for line in lines:
        if line.startswith('License:'):
            return line[9:]
    return '(Licence not found)'

def print_packages_and_licenses():
    table = []
    for pkg in sorted(pkg_resources.working_set, key=lambda x: str(x).lower()):
        table.append([str(pkg).split(' ',1)[0], str(pkg).split(' ',1)[1], get_pkg_license(pkg)])
    df = pd.DataFrame(table, columns=['Package',  'Version', 'License'])
    return df

print_packages_and_licenses()