utils.py 文件源码

def _enable_backend_case(cls, backend):
        "helper for create_backend_cases(); returns reason to skip backend, or None"
        handler = cls.handler
        if not is_default_backend(handler, backend) and not TEST_MODE("full"):
            return "only default backend is being tested"
        if handler.has_backend(backend):
            return None
        if handler.name == "bcrypt" and backend == "builtin" and TEST_MODE("full"):
            # this will be auto-enabled under TEST_MODE 'full'.
            return None
        from passlib.utils import has_crypt
        if backend == "os_crypt" and has_crypt:
            if TEST_MODE("full") and cls.find_crypt_replacement():
                # in this case, HandlerCase will monkeypatch os_crypt
                # to use another backend, just so we can test os_crypt fully.
                return None
            else:
                return "hash not supported by os crypt()"
        return "backend not available"