Import libs 4 (#758)

1 files changed, 20 insertions, 0 deletions

diff --git a/contrib/python/google-auth/py3/google/auth/__init__.py b/contrib/python/google-auth/py3/google/auth/__init__.py
index 2875772b37..765bbd7058 100644
--- a/contrib/python/google-auth/py3/google/auth/__init__.py
+++ b/contrib/python/google-auth/py3/google/auth/__init__.py
@@ -15,6 +15,8 @@
 """Google Auth Library for Python."""
 
 import logging
+import sys
+import warnings
 
 from google.auth import version as google_auth_version
 from google.auth._default import (
@@ -29,5 +31,23 @@ __version__ = google_auth_version.__version__
 
 __all__ = ["default", "load_credentials_from_file", "load_credentials_from_dict"]
 
+
+class Python37DeprecationWarning(DeprecationWarning):  # pragma: NO COVER
+    """
+    Deprecation warning raised when Python 3.7 runtime is detected.
+    Python 3.7 support will be dropped after January 1, 2024.
+    """
+
+    pass
+
+
+# Checks if the current runtime is Python 3.7.
+if sys.version_info.major == 3 and sys.version_info.minor == 7:  # pragma: NO COVER
+    message = (
+        "After January 1, 2024, new releases of this library will drop support "
+        "for Python 3.7."
+    )
+    warnings.warn(message, Python37DeprecationWarning)
+
 # Set default logging handler to avoid "No handler found" warnings.
 logging.getLogger(__name__).addHandler(logging.NullHandler())