add checks for mods18-19, use latest 3P built-in libs

Author: wescpy

README.md

@@ -113,7 +113,7 @@ Module | Topic | Video | Codelab | START here | FINISH here
 14|Migrate service between projects| _TBD_ | _TBD_ | _TBD_ | _TBD_
 15|Add App Engine `blobstore`| _TBD_ | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-15-blobstore?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrblobstore_sms_202029&utm_content=-) | Module 0 [code](/mod0-baseline) (2.x) | Module 15 [code](/mod15-blobstore) (2.x)
 16|Migrate to Cloud Storage| _TBD_ | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-16-cloudstorage?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrcloudstorage_sms_202029&utm_content=-) | Module 15 [code](/mod15-blobstore) (2.x) | Module 16 [code](/mod16-cloudstorage) (2.x & 3.x)
-17|Migrate to Python 3 bundled services| _TBD_ | _TBD_ | Module 1 [code](/mod1-flask) (2.x) | Module 1 [code](/mod1b-flask) (3.x)
+17|Migrate to Python 3 bundled services| _TBD_ | [link](http://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-17-bundled?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrwormhole_sms_202002&utm_content=-) | Module 1 [code](/mod1-flask) (2.x) | Module 1 [code](/mod1b-flask) (3.x)
 18|Add App Engine `taskqueue` pull tasks| _TBD_ | _TBD_ | Module 1 [code](/mod1-flask) (2.x) | Module 18 [code](/mod18-gaepull) (2.x)
 19|Migrate to Cloud Pub/Sub| _TBD_ | _TBD_ | Module 18 [code](/mod18-gaepull) (2.x) | Module 19 [code](/mod9-pubsub) (3.x)
 

mod13a-memorystore/app.yaml

@@ -22,9 +22,9 @@ handlers:
 
 libraries:
 - name: grpcio
-  version: 1.0.0
+  version: latest
 - name: setuptools
-  version: 36.6.0
+  version: latest
 
 env_variables:
     REDIS_HOST: 'YOUR_REDIS_HOST'

mod18-gaepull/main.py

@@ -58,7 +58,8 @@ def log_visitors():
     for task in tasks:
         visitor = task.payload
         tallies[visitor] = tallies.get(visitor, 0) + 1
-    q.delete_tasks(tasks)
+    if tasks:
+        q.delete_tasks(tasks)
 
     # increment those counts in Datastore and return
     for visitor in tallies:

mod19-pubsub/main.py

@@ -70,17 +70,19 @@ def log_visitors():
             acks.add(rcvd_msg.ack_id)
             visitor = rcvd_msg.message.data.decode('utf-8')
             tallies[visitor] = tallies.get(visitor, 0) + 1
-        psc_client.acknowledge(subscription=SUB_PATH, ack_ids=acks)
+        if acks:
+            psc_client.acknowledge(subscription=SUB_PATH, ack_ids=acks)
 
     # increment those counts in Datastore and return
-    with ds_client.context():
-        for visitor in tallies:
-            counter = VisitorCount.query(VisitorCount.visitor == visitor).get()
-            if not counter:
-                counter = VisitorCount(visitor=visitor, counter=0)
+    if tallies:
+        with ds_client.context():
+            for visitor in tallies:
+                counter = VisitorCount.query(VisitorCount.visitor == visitor).get()
+                if not counter:
+                    counter = VisitorCount(visitor=visitor, counter=0)
+                    counter.put()
+                counter.counter += tallies[visitor]
                 counter.put()
-            counter.counter += tallies[visitor]
-            counter.put()
     return 'DONE (with %d task[s] logging %d visitor[s])\r\n' % (len(msgs), len(tallies))
 
 

mod2a-cloudndb/app.yaml

@@ -22,6 +22,6 @@ handlers:
 
 libraries:
 - name: grpcio
-  version: 1.0.0
+  version: latest
 - name: setuptools
-  version: 36.6.0
+  version: latest

mod3a-datastore/app.yaml

@@ -22,6 +22,6 @@ handlers:
 
 libraries:
 - name: grpcio
-  version: 1.0.0
+  version: latest
 - name: setuptools
-  version: 36.6.0
+  version: latest

mod8-cloudtasks/app.yaml

@@ -22,6 +22,6 @@ handlers:
 
 libraries:
 - name: grpcio
-  version: 1.0.0
+  version: latest
 - name: setuptools
-  version: 36.6.0
+  version: latest