venv/lib/python3.11/site-packages/pip/_internal/commands/check.py

   1 import logging
   2 from optparse import Values
   3 from typing import List
   4
   5 from pip._internal.cli.base_command import Command
   6 from pip._internal.cli.status_codes import ERROR, SUCCESS
   7 from pip._internal.operations.check import (
   8     check_package_set,
   9     create_package_set_from_installed,
  10     warn_legacy_versions_and_specifiers,
  11 )
  12 from pip._internal.utils.misc import write_output
  13
  14 logger = logging.getLogger(__name__)
  15
  16
  17 class CheckCommand(Command):
  18     """Verify installed packages have compatible dependencies."""
  19
  20     usage = """
  21       %prog [options]"""
  22
  23     def run(self, options: Values, args: List[str]) -> int:
  24         package_set, parsing_probs = create_package_set_from_installed()
  25         warn_legacy_versions_and_specifiers(package_set)
  26         missing, conflicting = check_package_set(package_set)
  27
  28         for project_name in missing:
  29             version = package_set[project_name].version
  30             for dependency in missing[project_name]:
  31                 write_output(
  32                     "%s %s requires %s, which is not installed.",
  33                     project_name,
  34                     version,
  35                     dependency[0],
  36                 )
  37
  38         for project_name in conflicting:
  39             version = package_set[project_name].version
  40             for dep_name, dep_version, req in conflicting[project_name]:
  41                 write_output(
  42                     "%s %s has requirement %s, but you have %s %s.",
  43                     project_name,
  44                     version,
  45                     req,
  46                     dep_name,
  47                     dep_version,
  48                 )
  49
  50         if missing or conflicting or parsing_probs:
  51             return ERROR
  52         else:
  53             write_output("No broken requirements found.")
  54             return SUCCESS