Source code for

# Copyright(C) 2023 Romain Bignon
# This file is part of woob.
# woob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# woob is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public License
# along with woob. If not, see <>.

from __future__ import annotations

from collections import OrderedDict
from pathlib import Path

from packaging.specifiers import SpecifierSet
from packaging.requirements import Requirement, InvalidRequirement

__all__ = ['parse_requirements']

[docs]def parse_requirements(path: str | Path) -> dict[str, SpecifierSet]: requirements = OrderedDict() try: with open(path, 'r', encoding='utf-8') as fp: for line in fp.readlines(): try: r = Requirement(line.strip()) except InvalidRequirement: # ignore blank lines or comments, but we also don't # want to crash if requirements.txt contains incorrect # lines. So use only this catch-all. continue else: requirements[] = r.specifier except FileNotFoundError: # Assume this works with any version of woob. return {} return requirements