diff options
Diffstat (limited to 'src/setuptools_scm/_entrypoints.py')
| -rw-r--r-- | src/setuptools_scm/_entrypoints.py | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/setuptools_scm/_entrypoints.py b/src/setuptools_scm/_entrypoints.py index 0b86b90..2efb9f8 100644 --- a/src/setuptools_scm/_entrypoints.py +++ b/src/setuptools_scm/_entrypoints.py @@ -6,18 +6,20 @@ from typing import Iterator from typing import overload from typing import TYPE_CHECKING -from typing_extensions import Protocol - -from . import _types as _t from .utils import function_has_arg from .utils import trace from .version import ScmVersion if TYPE_CHECKING: from .config import Configuration + from typing_extensions import Protocol + from . import _types as _t else: Configuration = Any + class Protocol: + pass + class MaybeConfigFunction(Protocol): __name__: str @@ -71,7 +73,17 @@ def _version_from_entrypoints( try: from importlib.metadata import entry_points # type: ignore except ImportError: - from importlib_metadata import entry_points + try: + from importlib_metadata import entry_points + except ImportError: + from collections import defaultdict + + def entry_points() -> dict[str, list[_t.EntrypointProtocol]]: + warnings.warn( + "importlib metadata missing, " + "this may happen at build time for python3.7" + ) + return defaultdict(list) def iter_entry_points( |