| Viewing file:  check.py (1.65 KB)      -rw-r--r-- Select action/file-type:
 
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import loggingfrom optparse import Values
 from typing import List
 
 from pip._internal.cli.base_command import Command
 from pip._internal.cli.status_codes import ERROR, SUCCESS
 from pip._internal.operations.check import (
 check_package_set,
 create_package_set_from_installed,
 )
 from pip._internal.utils.misc import write_output
 
 logger = logging.getLogger(__name__)
 
 
 class CheckCommand(Command):
 """Verify installed packages have compatible dependencies."""
 
 usage = """
 %prog [options]"""
 
 def run(self, options: Values, args: List[str]) -> int:
 
 package_set, parsing_probs = create_package_set_from_installed()
 missing, conflicting = check_package_set(package_set)
 
 for project_name in missing:
 version = package_set[project_name].version
 for dependency in missing[project_name]:
 write_output(
 "%s %s requires %s, which is not installed.",
 project_name,
 version,
 dependency[0],
 )
 
 for project_name in conflicting:
 version = package_set[project_name].version
 for dep_name, dep_version, req in conflicting[project_name]:
 write_output(
 "%s %s has requirement %s, but you have %s %s.",
 project_name,
 version,
 req,
 dep_name,
 dep_version,
 )
 
 if missing or conflicting or parsing_probs:
 return ERROR
 else:
 write_output("No broken requirements found.")
 return SUCCESS
 
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