/usr/lib/python2.7/dist-packages/pip/operations/check.py is in python-pip 9.0.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | def check_requirements(installed_dists):
missing_reqs_dict = {}
incompatible_reqs_dict = {}
for dist in installed_dists:
key = '%s==%s' % (dist.project_name, dist.version)
missing_reqs = list(get_missing_reqs(dist, installed_dists))
if missing_reqs:
missing_reqs_dict[key] = missing_reqs
incompatible_reqs = list(get_incompatible_reqs(
dist, installed_dists))
if incompatible_reqs:
incompatible_reqs_dict[key] = incompatible_reqs
return (missing_reqs_dict, incompatible_reqs_dict)
def get_missing_reqs(dist, installed_dists):
"""Return all of the requirements of `dist` that aren't present in
`installed_dists`.
"""
installed_names = set(d.project_name.lower() for d in installed_dists)
missing_requirements = set()
for requirement in dist.requires():
if requirement.project_name.lower() not in installed_names:
missing_requirements.add(requirement)
yield requirement
def get_incompatible_reqs(dist, installed_dists):
"""Return all of the requirements of `dist` that are present in
`installed_dists`, but have incompatible versions.
"""
installed_dists_by_name = {}
for installed_dist in installed_dists:
installed_dists_by_name[installed_dist.project_name] = installed_dist
for requirement in dist.requires():
present_dist = installed_dists_by_name.get(requirement.project_name)
if present_dist and present_dist not in requirement:
yield (requirement, present_dist)
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