您可以使用pkg_resources：
import pkg_resources
def get_pkg_license(pkgname):
"""
Given a package reference (as from requirements.txt),
return license listed in package Metadata.
NOTE: This function does no error checking and is for
demonstration purposes only.
"""
pkgs = pkg_resources.require(pkgname)
pkg = pkgs[0]
for line in pkg.get_Metadata_lines('PKG-INFO'):
(k, v) = line.split(': ', 1)
if k == "License":
return v
return None
使用示例：
>>> get_pkg_license('mercurial')
'GNU GPLv2+'
>>> get_pkg_license('pytz')
'MIT'
>>> get_pkg_license('django')
'UNKNowN'
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