from __future__ import annotations
import io
import os
import sys
import typing
from typing import Sequence
from sqlalchemy.util import inspect_getfullargspec # noqa
from sqlalchemy.util.compat import inspect_formatargspec # noqa
is_posix = os.name == "posix"
py311 = sys.version_info >= (3, 11)
py39 = sys.version_info >= (3, 9)
py38 = sys.version_info >= (3, 8)
# produce a wrapper that allows encoded text to stream
# into a given buffer, but doesn't close it.
# not sure of a more idiomatic approach to this.
class EncodedIO(io.TextIOWrapper):
def close(self) -> None:
pass
if py39:
from importlib import resources as importlib_resources
from importlib import metadata as importlib_metadata
from importlib.metadata import EntryPoint
else:
import importlib_resources # type:ignore # noqa
import importlib_metadata # type:ignore # noqa
from importlib_metadata import EntryPoint # type:ignore # noqa
def importlib_metadata_get(group: str) -> Sequence[EntryPoint]:
ep = importlib_metadata.entry_points()
if hasattr(ep, "select"):
return ep.select(group=group) # type: ignore
else:
return ep.get(group, ()) # type: ignore
def formatannotation_fwdref(annotation, base_module=None):
"""vendored from python 3.7"""
# copied over _formatannotation from sqlalchemy 2.0
if isinstance(annotation, str):
return annotation
if getattr(annotation, "__module__", None) == "typing":
return repr(annotation).replace("typing.", "").replace("~", "")
if isinstance(annotation, type):
if annotation.__module__ in ("builtins", base_module):
return repr(annotation.__qualname__)
return annotation.__module__ + "." + annotation.__qualname__
elif isinstance(annotation, typing.TypeVar):
return repr(annotation).replace("~", "")
return repr(annotation).replace("~", "")
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