docs(samples): Replace APPENGINE_RUNTIME with GAE_ENV (#1893)

GAE_ENV is available in gen1 and gen2 runtimes.

Signed-off-by: Andres Botero <botero@google.com>

Signed-off-by: Andres Botero <botero@google.com>
Co-authored-by: Andres Botero <botero@google.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

Author: 3 people

googleapiclient/discovery_cache/__init__.py

@@ -34,7 +34,7 @@ def autodetect():
       googleapiclient.discovery_cache.base.Cache, a cache object which
       is auto detected, or None if no cache object is available.
     """
-    if "APPENGINE_RUNTIME" in os.environ:
+    if "GAE_ENV" in os.environ:
         try:
             from . import appengine_memcache
 

tests/test_discovery.py

@@ -1205,7 +1205,7 @@ def test_single_500_then_404_retries_and_succeeds(self):
 class DiscoveryFromAppEngineCache(unittest.TestCase):
     def setUp(self):
         self.old_environ = os.environ.copy()
-        os.environ["APPENGINE_RUNTIME"] = "python27"
+        os.environ["GAE_ENV"] = "standard"
 
     def tearDown(self):
         os.environ = self.old_environ