Initial commit

venv/Lib/site-packages/sqlalchemy/util/_has_cy.py

@@ -0,0 +1,40 @@
+# util/_has_cy.py
+# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+# mypy: ignore-errors
+
+import os
+import typing
+
+
+def _import_cy_extensions():
+    # all cython extension extension modules are treated as optional by the
+    # setup, so to ensure that all are compiled, all should be imported here
+    from ..cyextension import collections
+    from ..cyextension import immutabledict
+    from ..cyextension import processors
+    from ..cyextension import resultproxy
+    from ..cyextension import util
+
+    return (collections, immutabledict, processors, resultproxy, util)
+
+
+_CYEXTENSION_MSG: str
+if not typing.TYPE_CHECKING:
+    if os.environ.get("DISABLE_SQLALCHEMY_CEXT_RUNTIME"):
+        HAS_CYEXTENSION = False
+        _CYEXTENSION_MSG = "DISABLE_SQLALCHEMY_CEXT_RUNTIME is set"
+    else:
+        try:
+            _import_cy_extensions()
+        except ImportError as err:
+            HAS_CYEXTENSION = False
+            _CYEXTENSION_MSG = str(err)
+        else:
+            _CYEXTENSION_MSG = "Loaded"
+            HAS_CYEXTENSION = True
+else:
+    HAS_CYEXTENSION = False