README & gcloudignore tweaks, minor memory usage fix in Mod9

Author: wescpy

README.md

@@ -246,24 +246,23 @@ If your original app users does *not* have a user interface, i.e., mobile backen
 - This repo, along with corresponding codelabs & videos are complementary to the official docs & code samples.
     - The [official Python 2 to 3 migration documentation](https://cloud.google.com/appengine/docs/standard/python/migrate-to-python3)
     - [Canonical migration code samples repo](https://github.com/GoogleCloudPlatform/python-docs-samples/tree/master/appengine/standard/migration)
-        - Example: [GAE `ndb` to Cloud NDB](https://github.com/GoogleCloudPlatform/python-docs-samples/tree/master/appengine/standard/migration/ndb/overview)
-        - Example: [GAE `taskqueue` to Cloud Tasks](https://github.com/GoogleCloudPlatform/python-docs-samples/tree/master/appengine/standard/migration/taskqueue)
+        - *Example:* [GAE `ndb` to Cloud NDB](https://github.com/GoogleCloudPlatform/python-docs-samples/tree/master/appengine/standard/migration/ndb/overview) (similar to Module 2)
+        - *Example:* [GAE `taskqueue` to Cloud Tasks](https://github.com/GoogleCloudPlatform/python-docs-samples/tree/master/appengine/standard/migration/taskqueue) (similar to Module 8)
 
 
 ## References
 
 - App Engine Migration
     - [Migrate from Python 2 to 3](http://cloud.google.com/appengine/docs/standard/python/migrate-to-python3)
     - [Migrate from App Engine `ndb` to Cloud NDB](http://cloud.google.com/appengine/docs/standard/python/migrate-to-python3/migrate-to-cloud-ndb) (Module 2)
-    - [App Engine `ndb` to Cloud NDB official sample app](https://github.com/GoogleCloudPlatform/python-docs-samples/tree/master/appengine/standard/migration/ndb/overview) (Module 2)
     - [Migrate from App Engine `taskqueue` to Cloud Tasks](http://cloud.google.com/appengine/docs/standard/python/migrate-to-python3/migrate-to-cloud-ndb) (Modules 7-9)
-    - [App Engine `app.yaml` to Cloud Run `service.yaml` tool](http://googlecloudplatform.github.io/app-engine-cloud-run-converter) (Modules 4 and 5)
     - [Migrate from App Engine `db` to `ndb`](http://cloud.google.com/appengine/docs/standard/python/ndb/db_to_ndb) ("Module -1"; only for reviving "dead" Python 2.5 apps for 2.7)
     - [Community contributed migration samples](https://github.com/GoogleCloudPlatform/appengine-python2-3-migration)
 
 - Python App Engine
-    - [Python 2 App Engine (Standard)](https://cloud.google.com/appengine/docs/standard/python/runtime)
-    - [Python 3 App Engine (Standard)](https://cloud.google.com/appengine/docs/standard/python3/runtime)
+    - [App Engine 1st vs. 2nd generation runtimes](https://cloud.google.com/appengine/docs/standard/runtimes)
+    - [Python 2 App Engine (Standard) runtime](https://cloud.google.com/appengine/docs/standard/python/runtime)
+    - [Python 3 App Engine (Standard) runtime](https://cloud.google.com/appengine/docs/standard/python3/runtime)
     - [Python App Engine (Flexible)](https://cloud.google.com/appengine/docs/flexible/python)
 
 - Google Cloud Platform (GCP)

mod0-baseline/.gcloudignore

@@ -9,14 +9,13 @@
 .gcloudignore
 
 # Ignore source code control maintenance files
-.git
+.git/
 .gitignore
 .hgignore
 .hg/
 
 # Python files
-*.pyc
-*.pyo
+*.py[cod]
 __pycache__/
 /setup.cfg
 

mod9-py3fstasks/main.py

@@ -37,7 +37,7 @@ def store_visit(remote_addr, user_agent):
         'visitor': '{}: {}'.format(remote_addr, user_agent),
     })
 
-def create_queue_if():
+def _create_queue_if():
     'app-internal function creating default queue if it does not exist'
     try:
         ts_client.get_queue(name=QUEUE_PATH)
@@ -64,7 +64,7 @@ def fetch_visits(limit):
             },
         }
     }
-    if create_queue_if():
+    if _create_queue_if():
         ts_client.create_task(parent=QUEUE_PATH, task=task)
     return visits, oldest_str
 
@@ -79,12 +79,11 @@ def trim():
     '(push) task queue handler to delete oldest visits'
     oldest = float(request.get_json().get('oldest'))
     query = fs_client.collection('Visit')
-    visits = list(query.where('timestamp', '<',
-            datetime.fromtimestamp(oldest)).stream())
-    nvisits = len(visits)
-    if nvisits:
-        print('Deleting %d entities: ' % nvisits, end='')
-        print(', '.join(str(v_id) for v_id in _delete_docs(visits)))
+    visits = query.where('timestamp', '<',
+            datetime.fromtimestamp(oldest)).stream()
+    dlist = ', '.join(str(v_id) for v_id in _delete_docs(visits))
+    if dlist:
+        print('Deleting %d entities: %s' % (dlist.count(',')+1, dlist))
     else:
         print('No entities older than: %s' % time.ctime(oldest))
     return ''   # need to return SOME string w/200