Fix/remove support python2 option in flask aiohttp generators (#13585)

* fix: remove option supportPython2.
[python-flask][python-aiohttp][python-blueplanet]

* fix: update samples

* test only python servers

* fix(tests): downgrade pytest version to ensure compatibility with python3.6 [python-flask][python-aiohttp]

* Revert "fix(tests): downgrade pytest version to ensure compatibility with python3.6 [python-flask][python-aiohttp]"

This reverts commit 9f47db2f87.

* test in circlei

* run commands directly

* test in node 1

* update makefile

* fix Makefile

* fix test

* revert some changes, remove python server tests from travis

Co-authored-by: Kevin Bannier <kevinbannier1@gmail.com>

samples/server/petstore/python-aiohttp-srclayout/Makefile

@@ -12,7 +12,7 @@ clean:
 		find . -name "__pycache__" -delete
 
 venv: 
-		python -m venv $(VENV)
+		python3 -m venv $(VENV)
 
 test: clean venv
 		bash ./test_python3.sh

samples/server/petstore/python-aiohttp-srclayout/requirements.txt

@@ -5,5 +5,5 @@ connexion[aiohttp,swagger-ui] <= 2.3.0; python_version=="3.5" or python_version=
 # we must peg werkzeug versions below to fix connexion
 # https://github.com/zalando/connexion/pull/1044
 werkzeug == 0.16.1; python_version=="3.5" or python_version=="3.4"
-swagger-ui-bundle == 0.0.6
-aiohttp_jinja2 == 1.2.0
+swagger-ui-bundle == 0.0.9
+aiohttp_jinja2 == 1.5.0

samples/server/petstore/python-aiohttp-srclayout/setup.py

@@ -14,9 +14,9 @@ VERSION = "1.0.0"
 # http://pypi.python.org/pypi/setuptools
 
 REQUIRES = [
-    "connexion==2.6.0",
-    "swagger-ui-bundle==0.0.6",
-    "aiohttp_jinja2==1.2.0",
+    "connexion==2.14.1",
+    "swagger-ui-bundle==0.0.9",
+    "aiohttp_jinja2==1.5.0",
 ]
 
 setup(

samples/server/petstore/python-aiohttp-srclayout/test-requirements.txt

@@ -1,4 +1,4 @@
-pytest~=4.6.7 # needed for python 2.7+3.4
+pytest~=7.1.0
 pytest-cov>=2.8.1
-pytest-randomly==1.2.3 # needed for python 2.7+3.4
+pytest-randomly>=1.2.3
 pytest-aiohttp>=0.3.0