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.venv/Lib/site-packages/psycopg/_compat.py

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+"""
+compatibility functions for different Python versions
+"""
+
+# Copyright (C) 2021 The Psycopg Team
+
+from __future__ import annotations
+
+import sys
+from typing import Any, Iterator
+
+if sys.version_info >= (3, 11):
+    from typing import LiteralString, Self
+else:
+    from typing_extensions import LiteralString, Self
+
+if sys.version_info >= (3, 12):
+    _asyncio_run_snippet = (
+        "running 'asyncio.run(...,"
+        " loop_factory=asyncio.SelectorEventLoop(selectors.SelectSelector()))'"
+    )
+
+else:
+    _asyncio_run_snippet = (
+        "setting 'asyncio.set_event_loop_policy(WindowsSelectorEventLoopPolicy())'"
+    )
+
+if sys.version_info >= (3, 13):
+    from typing import TypeVar
+else:
+    from typing_extensions import TypeVar
+
+if sys.version_info >= (3, 14):
+    from string.templatelib import Interpolation, Template
+else:
+    from typing import Generic, Literal
+    from dataclasses import dataclass
+
+    T = TypeVar("T")
+
+    class Template:
+        strings: tuple[str]
+        interpolations: tuple[Interpolation[Any]]
+
+        def __new__(cls, *args: str | Interpolation[Any]) -> Self:
+            return cls()
+
+        def __iter__(self) -> Iterator[str | Interpolation[Any]]:
+            return
+            yield
+
+    @dataclass
+    class Interpolation(Generic[T]):
+        value: T
+        expression: str
+        conversion: Literal["a", "r", "s"] | None
+        format_spec: str
+
+
+__all__ = [
+    "Interpolation",
+    "LiteralString",
+    "Self",
+    "Template",
+    "TypeVar",
+]