[Python] fix tags with underscore for python

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PythonClientCodegen.java

@@ -430,7 +430,7 @@ public String toApiFilename(String name) {
         // replace - with _ e.g. created-at => created_at
         name = name.replaceAll("-", "_");
 
-        // e.g. PhoneNumberApi.rb => phone_number_api.rb
+        // e.g. PhoneNumberApi.py => phone_number_api.py
         return underscore(name) + "_api";
     }
 
@@ -608,6 +608,12 @@ public void setParameterExampleValue(CodegenParameter p) {
 
         p.example = example;
     }
+
+    @Override
+    public String sanitizeTag(String tag) {
+        return sanitizeName(tag);
+    }
+
 
     @Override
     public String escapeQuotationMark(String input) {

modules/swagger-codegen/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml

@@ -560,6 +560,29 @@ paths:
         '404':
           description: User not found
 
+  /fake_classname_test:
+    patch:
+      tags:
+        - "fake_classname_tags 123#$%^"
+      summary: To test class name in snake case
+      descriptions: To test class name in snake case
+      operationId: testClassname
+      consumes:
+        - application/json
+      produces:
+        - application/json
+      parameters:
+        - in: body
+          name: body
+          description: client model
+          required: true
+          schema:
+            $ref: '#/definitions/Client'
+      responses:
+        '200':
+          description: successful operation
+          schema:
+            $ref: '#/definitions/Client'
   /fake:
     patch:
       tags:

samples/client/petstore/python/README.md

@@ -72,6 +72,7 @@ Class | Method | HTTP request | Description
 *FakeApi* | [**test_client_model**](docs/FakeApi.md#test_client_model) | **PATCH** /fake | To test \"client\" model
 *FakeApi* | [**test_endpoint_parameters**](docs/FakeApi.md#test_endpoint_parameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 *FakeApi* | [**test_enum_parameters**](docs/FakeApi.md#test_enum_parameters) | **GET** /fake | To test enum parameters
+*FakeClassnameTags123Api* | [**test_classname**](docs/FakeClassnameTags123Api.md#test_classname) | **PATCH** /fake_classname_test | To test class name in snake case
 *PetApi* | [**add_pet**](docs/PetApi.md#add_pet) | **POST** /pet | Add a new pet to the store
 *PetApi* | [**delete_pet**](docs/PetApi.md#delete_pet) | **DELETE** /pet/{petId} | Deletes a pet
 *PetApi* | [**find_pets_by_status**](docs/PetApi.md#find_pets_by_status) | **GET** /pet/findByStatus | Finds Pets by status

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

@@ -0,0 +1,55 @@
+# petstore_api.FakeClassnameTags123Api
+
+All URIs are relative to *http://petstore.swagger.io/v2*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**test_classname**](FakeClassnameTags123Api.md#test_classname) | **PATCH** /fake_classname_test | To test class name in snake case
+
+
+# **test_classname**
+> Client test_classname(body)
+
+To test class name in snake case
+
+### Example 
+```python
+from __future__ import print_statement
+import time
+import petstore_api
+from petstore_api.rest import ApiException
+from pprint import pprint
+
+# create an instance of the API class
+api_instance = petstore_api.FakeClassnameTags123Api()
+body = petstore_api.Client() # Client | client model
+
+try: 
+    # To test class name in snake case
+    api_response = api_instance.test_classname(body)
+    pprint(api_response)
+except ApiException as e:
+    print("Exception when calling FakeClassnameTags123Api->test_classname: %s\n" % e)
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**Client**](Client.md)| client model | 
+
+### Return type
+
+[**Client**](Client.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/json
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+

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

@@ -57,6 +57,7 @@
 
 # import apis into sdk package
 from .apis.fake_api import FakeApi
+from .apis.fake_classname_tags_123_api import FakeClassnameTags123Api
 from .apis.pet_api import PetApi
 from .apis.store_api import StoreApi
 from .apis.user_api import UserApi

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

@@ -2,6 +2,7 @@
 
 # import apis into api package
 from .fake_api import FakeApi
+from .fake_classname_tags_123_api import FakeClassnameTags123Api
 from .pet_api import PetApi
 from .store_api import StoreApi
 from .user_api import UserApi

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

@@ -0,0 +1,160 @@
+# coding: utf-8
+
+"""
+    Swagger Petstore
+
+    This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+    OpenAPI spec version: 1.0.0
+    Contact: apiteam@swagger.io
+    Generated by: https://github.com/swagger-api/swagger-codegen.git
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+"""
+
+from __future__ import absolute_import
+
+import sys
+import os
+import re
+
+# python 2 and python 3 compatibility library
+from six import iteritems
+
+from ..configuration import Configuration
+from ..api_client import ApiClient
+
+
+class FakeClassnameTags123Api(object):
+    """
+    NOTE: This class is auto generated by the swagger code generator program.
+    Do not edit the class manually.
+    Ref: https://github.com/swagger-api/swagger-codegen
+    """
+
+    def __init__(self, api_client=None):
+        config = Configuration()
+        if api_client:
+            self.api_client = api_client
+        else:
+            if not config.api_client:
+                config.api_client = ApiClient()
+            self.api_client = config.api_client
+
+    def test_classname(self, body, **kwargs):
+        """
+        To test class name in snake case
+
+
+        This method makes a synchronous HTTP request by default. To make an
+        asynchronous HTTP request, please define a `callback` function
+        to be invoked when receiving the response.
+        >>> def callback_function(response):
+        >>>     pprint(response)
+        >>>
+        >>> thread = api.test_classname(body, callback=callback_function)
+
+        :param callback function: The callback function
+            for asynchronous request. (optional)
+        :param Client body: client model (required)
+        :return: Client
+                 If the method is called asynchronously,
+                 returns the request thread.
+        """
+        kwargs['_return_http_data_only'] = True
+        if kwargs.get('callback'):
+            return self.test_classname_with_http_info(body, **kwargs)
+        else:
+            (data) = self.test_classname_with_http_info(body, **kwargs)
+            return data
+
+    def test_classname_with_http_info(self, body, **kwargs):
+        """
+        To test class name in snake case
+
+
+        This method makes a synchronous HTTP request by default. To make an
+        asynchronous HTTP request, please define a `callback` function
+        to be invoked when receiving the response.
+        >>> def callback_function(response):
+        >>>     pprint(response)
+        >>>
+        >>> thread = api.test_classname_with_http_info(body, callback=callback_function)
+
+        :param callback function: The callback function
+            for asynchronous request. (optional)
+        :param Client body: client model (required)
+        :return: Client
+                 If the method is called asynchronously,
+                 returns the request thread.
+        """
+
+        all_params = ['body']
+        all_params.append('callback')
+        all_params.append('_return_http_data_only')
+
+        params = locals()
+        for key, val in iteritems(params['kwargs']):
+            if key not in all_params:
+                raise TypeError(
+                    "Got an unexpected keyword argument '%s'"
+                    " to method test_classname" % key
+                )
+            params[key] = val
+        del params['kwargs']
+        # verify the required parameter 'body' is set
+        if ('body' not in params) or (params['body'] is None):
+            raise ValueError("Missing the required parameter `body` when calling `test_classname`")
+
+
+        collection_formats = {}
+
+        resource_path = '/fake_classname_test'.replace('{format}', 'json')
+        path_params = {}
+
+        query_params = {}
+
+        header_params = {}
+
+        form_params = []
+        local_var_files = {}
+
+        body_params = None
+        if 'body' in params:
+            body_params = params['body']
+
+        # HTTP header `Accept`
+        header_params['Accept'] = self.api_client.\
+            select_header_accept(['application/json'])
+        if not header_params['Accept']:
+            del header_params['Accept']
+
+        # HTTP header `Content-Type`
+        header_params['Content-Type'] = self.api_client.\
+            select_header_content_type(['application/json'])
+
+        # Authentication setting
+        auth_settings = []
+
+        return self.api_client.call_api(resource_path, 'PATCH',
+                                            path_params,
+                                            query_params,
+                                            header_params,
+                                            body=body_params,
+                                            post_params=form_params,
+                                            files=local_var_files,
+                                            response_type='Client',
+                                            auth_settings=auth_settings,
+                                            callback=params.get('callback'),
+                                            _return_http_data_only=params.get('_return_http_data_only'),
+                                            collection_formats=collection_formats)

samples/client/petstore/python/test/test_fake_classname_tags_123_api.py

@@ -0,0 +1,55 @@
+# coding: utf-8
+
+"""
+    Swagger Petstore
+
+    This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+    OpenAPI spec version: 1.0.0
+    Contact: apiteam@swagger.io
+    Generated by: https://github.com/swagger-api/swagger-codegen.git
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+"""
+
+from __future__ import absolute_import
+
+import os
+import sys
+import unittest
+
+import petstore_api
+from petstore_api.rest import ApiException
+from petstore_api.apis.fake_classname_tags_123_api import FakeClassnameTags123Api
+
+
+class TestFakeClassnameTags123Api(unittest.TestCase):
+    """ FakeClassnameTags123Api unit test stubs """
+
+    def setUp(self):
+        self.api = petstore_api.apis.fake_classname_tags_123_api.FakeClassnameTags123Api()
+
+    def tearDown(self):
+        pass
+
+    def test_test_classname(self):
+        """
+        Test case for test_classname
+
+        To test class name in snake case
+        """
+        pass
+
+
+if __name__ == '__main__':
+    unittest.main()