remove ref to SO (#6209)

samples/client/petstore/python/README.md

@@ -148,6 +148,12 @@ Class | Method | HTTP request | Description
 - **API key parameter name**: api_key
 - **Location**: HTTP header
 
+## api_key_query
+
+- **Type**: API key
+- **API key parameter name**: api_key_query
+- **Location**: URL query string
+
 ## http_basic_test
 
 - **Type**: HTTP basic authentication

samples/client/petstore/python/docs/FakeClassnameTags123Api.md

@@ -20,8 +20,14 @@ import petstore_api
 from petstore_api.rest import ApiException
 from pprint import pprint
 
+# Configure API key authorization: api_key_query
+configuration = petstore_api.Configuration()
+configuration.api_key['api_key_query'] = 'YOUR_API_KEY'
+# Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
+# configuration.api_key_prefix['api_key_query'] = 'Bearer'
+
 # create an instance of the API class
-api_instance = petstore_api.FakeClassnameTags123Api()
+api_instance = petstore_api.FakeClassnameTags123Api(petstore_api.ApiClient(configuration))
 body = petstore_api.Client() # Client | client model
 
 try: 
@@ -44,7 +50,7 @@ Name | Type | Description  | Notes
 
 ### Authorization
 
-No authorization required
+[api_key_query](../README.md#api_key_query)
 
 ### HTTP request headers
 

samples/client/petstore/python/petstore_api/apis/fake_classname_tags_123_api.py

@@ -114,7 +114,7 @@ class FakeClassnameTags123Api(object):
             select_header_content_type(['application/json'])
 
         # Authentication setting
-        auth_settings = []
+        auth_settings = ['api_key_query']
 
         return self.api_client.call_api('/fake_classname_test', 'PATCH',
                                         path_params,

samples/client/petstore/python/petstore_api/configuration.py

@@ -204,6 +204,13 @@ class Configuration(object):
                     'key': 'api_key',
                     'value': self.get_api_key_with_prefix('api_key')
                 },
+            'api_key_query':
+                {
+                    'type': 'api_key',
+                    'in': 'query',
+                    'key': 'api_key_query',
+                    'value': self.get_api_key_with_prefix('api_key_query')
+                },
             'http_basic_test':
                 {
                     'type': 'basic',

samples/client/petstore/python/petstore_api/rest.py

@@ -61,8 +61,7 @@ class RESTClientObject(object):
         # https://github.com/shazow/urllib3/blob/f9409436f83aeb79fbaf090181cd81b784f1b8ce/urllib3/poolmanager.py#L75
         # https://github.com/shazow/urllib3/blob/f9409436f83aeb79fbaf090181cd81b784f1b8ce/urllib3/connectionpool.py#L680
         # maxsize is the number of requests to host that are allowed in parallel
-        # ca_certs vs cert_file vs key_file
-        # http://stackoverflow.com/a/23957365/2985775
+        # Custom SSL certificates and client certificates: http://urllib3.readthedocs.io/en/latest/advanced-usage.html
 
         # cert_reqs
         if configuration.verify_ssl: