Mark python2 support in Flask as deprecated

docs/generators/python-aiohttp.md

@@ -18,7 +18,7 @@ sidebar_label: python-aiohttp
 |serverPort|TCP port to listen to in app.run| |8080|
 |sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |true|
 |sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
-|supportPython2|support python2| |false|
+|supportPython2|support python2. This option has been deprecated and will be removed in the 5.x release.| |false|
 |useNose|use the nose test framework| |false|
 
 ## IMPORT MAPPING

docs/generators/python-blueplanet.md

@@ -18,7 +18,7 @@ sidebar_label: python-blueplanet
 |serverPort|TCP port to listen to in app.run| |8080|
 |sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |true|
 |sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
-|supportPython2|support python2| |false|
+|supportPython2|support python2. This option has been deprecated and will be removed in the 5.x release.| |false|
 |useNose|use the nose test framework| |false|
 
 ## IMPORT MAPPING

docs/generators/python-flask.md

@@ -18,7 +18,7 @@ sidebar_label: python-flask
 |serverPort|TCP port to listen to in app.run| |8080|
 |sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |true|
 |sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
-|supportPython2|support python2| |false|
+|supportPython2|support python2. This option has been deprecated and will be removed in the 5.x release.| |false|
 |useNose|use the nose test framework| |false|
 
 ## IMPORT MAPPING

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonAbstractConnexionServerCodegen.java

@@ -161,7 +161,7 @@ public PythonAbstractConnexionServerCodegen(String templateDirectory, boolean fi
                 defaultValue("controllers"));
         cliOptions.add(new CliOption(DEFAULT_CONTROLLER, "default controller").
                 defaultValue("default_controller"));
-        cliOptions.add(new CliOption(SUPPORT_PYTHON2, "support python2").
+        cliOptions.add(new CliOption(SUPPORT_PYTHON2, "support python2. This option has been deprecated and will be removed in the 5.x release.").
                 defaultValue("false"));
         cliOptions.add(new CliOption("serverPort", "TCP port to listen to in app.run").
                 defaultValue("8080"));

pom.xml

@@ -1180,7 +1180,6 @@
                 <module>samples/server/petstore/python-aiohttp</module>
                 <module>samples/server/petstore/python-aiohttp-srclayout</module>
                 <module>samples/server/petstore/python-flask</module>
-                <module>samples/server/petstore/python-flask-python2</module>
                 <module>samples/server/petstore/php-slim4</module>
                 <module>samples/server/petstore/php-laravel</module>
                 <module>samples/server/petstore/rust-server</module>