[@wescpy] make GAE Quickstart samples consistent (GoogleCloudPlatform#6710)

* make GAE Quickstart samples consistent

* make GAE Quickstart samples consistent

* Update main.py

fix copyright

* Update main.py

Co-authored-by: Leah E. Cole <[email protected]>

Author: wescpy

appengine/flexible/hello_world/main.py

@@ -13,8 +13,6 @@
 # limitations under the License.
 
 # [START gae_flex_quickstart]
-import logging
-
 from flask import Flask
 
 
@@ -27,17 +25,8 @@ def hello():
     return 'Hello World!'
 
 
-@app.errorhandler(500)
-def server_error(e):
-    logging.exception('An error occurred during a request.')
-    return """
-    An internal error occurred: <pre>{}</pre>
-    See logs for full stacktrace.
-    """.format(e), 500
-
-
 if __name__ == '__main__':
-    # This is used when running locally. Gunicorn is used to run the
-    # application on Google App Engine. See entrypoint in app.yaml.
+    # This is used when running locally only. When deploying to Google App
+    # Engine, a webserver process such as Gunicorn will serve the app.
     app.run(host='127.0.0.1', port=8080, debug=True)
 # [END gae_flex_quickstart]

appengine/standard_python3/hello_world/main.py

@@ -30,8 +30,8 @@ def hello():
 
 if __name__ == '__main__':
     # This is used when running locally only. When deploying to Google App
-    # Engine, a webserver process such as Gunicorn will serve the app. This
-    # can be configured by adding an `entrypoint` to app.yaml.
+    # Engine, a webserver process such as Gunicorn will serve the app. You
+    # can configure startup instructions by adding `entrypoint` to app.yaml.
     app.run(host='127.0.0.1', port=8080, debug=True)
 # [END gae_python3_app]
 # [END gae_python38_app]