Modules§
- requirement_
specifier - 解析(requirement specifier)[https://pip.pypa.io/en/stable/reference/requirement-specifiers] refer to https://peps.python.org/pep-0508/ for the complete parsley grammar. -> pythonExpression 是表示解析’->’前面的一串语法, 对应的python返回值是什么
- version
- refer to https://github.com/pypa/packaging/blob/main/src/packaging/version.py 正则忽略大小写 this is version scheme, 与requirement_specifier中用的version string不同, 在specifier中还能用通配符*