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import logging
from pip.basecommand import Command
from pip.operations.check import check_requirements
from pip.utils import get_installed_distributions
logger = logging.getLogger(__name__)
class CheckCommand(Command):
"""Verify installed packages have compatible dependencies."""
name = 'check'
usage = """
%prog [options]"""
summary = 'Verify installed packages have compatible dependencies.'
def run(self, options, args):
dists = get_installed_distributions(local_only=False, skip=())
missing_reqs_dict, incompatible_reqs_dict = check_requirements(dists)
for dist in dists:
key = '%s==%s' % (dist.project_name, dist.version)
for requirement in missing_reqs_dict.get(key, []):
logger.info(
"%s %s requires %s, which is not installed.",
dist.project_name, dist.version, requirement.project_name)
for requirement, actual in incompatible_reqs_dict.get(key, []):
logger.info(
"%s %s has requirement %s, but you have %s %s.",
dist.project_name, dist.version, requirement,
actual.project_name, actual.version)
if missing_reqs_dict or incompatible_reqs_dict:
return 1
else:
logger.info("No broken requirements found.")