chore(deps): update dependency django to v3.0.2 (#2723)

* chore(deps): update dependency django to v3.0.2

* manually update django in some spots

* fix test failures wrt psycopg2

* specify django for python2

* More python django version stuff

* gunicorn python versionin

* make appengine django cloudsql tests py3 only

* pin django versions for python versions

* fix error

Co-authored-by: Leah E. Cole <6719667+leahecole@users.noreply.github.com>

appengine/flexible/django_cloudsql/requirements.txt

@@ -1,5 +1,7 @@
-Django==3.0.1
+Django==3.0.2; python_version > '3.5'
+Django==2.2.9; python_version == '3.5'
 # mysqlclient==1.4.1  # Uncomment this line if using MySQL
 wheel==0.33.6
 gunicorn==20.0.4
-psycopg2==2.8.4
+#psycopg2==2.8.4 # uncomment if you prefer to build from source
+psycopg2-binary==2.8.4

appengine/flexible/hello_world_django/requirements.txt

@@ -1,2 +1,5 @@
-Django==3.0.1
-gunicorn==20.0.4
+Django==3.0.2; python_version > '3.5'
+Django==2.2.9; python_version == '3.5'
+Django==1.11.27; python_version < '3.0'
+gunicorn==20.0.4; python_version > '3.0'
+gunicorn==19.10.0; python_version < '3.0'

kubernetes_engine/django_tutorial/requirements.txt

@@ -1,7 +1,11 @@
-Django==3.0.1
+Django==3.0.2; python_version > '3.5'
+Django==2.2.9; python_version == '3.5'
+Django==1.11.27;python_version < '3.0'
 # Uncomment the mysqlclient requirement if you are using MySQL rather than
 # PostgreSQL. You must also have a MySQL client installed in that case.
 #mysqlclient==1.4.1
 wheel==0.33.6
-gunicorn==20.0.4
-psycopg2==2.8.4
+gunicorn==20.0.4; python_version > '3.0'
+gunicorn==19.10.0; python_version < '3.0'
+# psycopg2==2.8.4 # uncomment if you prefer to build from source
+psycopg2-binary==2.8.4

noxfile-template.py

@@ -146,6 +146,9 @@ def _setup_appengine_sdk(session):
         str(Path(sample).absolute().relative_to(REPO_ROOT)).startswith(
             "appengine/standard_python37"
         )
+        or str(Path(sample).absolute().relative_to(REPO_ROOT)).startswith(
+            "appengine/flexible/django_cloudsql"
+        )
         or str(Path(sample).absolute().relative_to(REPO_ROOT)).startswith("functions/")
         or str(Path(sample).absolute().relative_to(REPO_ROOT)).startswith(
             "bigquery/pandas-gbq-migration"