diff --git a/bin/windows/typescript-node-petstore-with-npm.bat b/bin/windows/typescript-node-petstore-with-npm.bat
old mode 100644
new mode 100755
diff --git a/bin/windows/typescript-node-petstore.bat b/bin/windows/typescript-node-petstore.bat
old mode 100644
new mode 100755
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenConstants.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenConstants.java
index 88cf6c2df20..0d5780a775e 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenConstants.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenConstants.java
@@ -213,6 +213,9 @@ public class CodegenConstants {
     public static final String EXCLUDE_TESTS = "excludeTests";
     public static final String EXCLUDE_TESTS_DESC = "Specifies that no tests are to be generated.";
 
+    public static final String SOURCECODEONLY_GENERATION = "generateSourceCodeOnly";
+    public static final String SOURCECODEONLY_GENERATION_DESC = "Specifies that only a library source code is to be generated.";
+
     // Not user-configurable. System provided for use in templates.
 
     public static final String GENERATE_APIS = "generateApis";
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
index 618e5a5bdcd..cb829433f5d 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
@@ -159,6 +159,8 @@ public class PythonClientCodegen extends DefaultCodegen implements CodegenConfig
                 CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG_DESC).defaultValue(Boolean.TRUE.toString()));
         cliOptions.add(new CliOption(CodegenConstants.HIDE_GENERATION_TIMESTAMP, CodegenConstants.HIDE_GENERATION_TIMESTAMP_DESC)
                 .defaultValue(Boolean.TRUE.toString()));
+        cliOptions.add(new CliOption(CodegenConstants.SOURCECODEONLY_GENERATION, CodegenConstants.SOURCECODEONLY_GENERATION_DESC)
+            .defaultValue(Boolean.FALSE.toString()));
 
         supportedLibraries.put("urllib3", "urllib3-based client");
         supportedLibraries.put("asyncio", "Asyncio-based client (python 3.5+)");
@@ -198,10 +200,22 @@ public class PythonClientCodegen extends DefaultCodegen implements CodegenConfig
             setPackageVersion("1.0.0");
         }
 
+        Boolean generateSourceCodeOnly = false;
+        if (additionalProperties.containsKey(CodegenConstants.SOURCECODEONLY_GENERATION)) {
+            generateSourceCodeOnly = true;
+        }
+
         additionalProperties.put(CodegenConstants.PROJECT_NAME, projectName);
         additionalProperties.put(CodegenConstants.PACKAGE_NAME, packageName);
         additionalProperties.put(CodegenConstants.PACKAGE_VERSION, packageVersion);
 
+        if (generateSourceCodeOnly) {
+            // tests in <package>/test
+            testFolder = packageName + File.separatorChar + testFolder;
+            // api/model docs in <package>/docs
+            apiDocPath = packageName + File.separatorChar + apiDocPath;
+            modelDocPath = packageName + File.separatorChar + modelDocPath;
+        }
         // make api and model doc path available in mustache template
         additionalProperties.put("apiDocPath", apiDocPath);
         additionalProperties.put("modelDocPath", modelDocPath);
@@ -210,12 +224,24 @@ public class PythonClientCodegen extends DefaultCodegen implements CodegenConfig
             setPackageUrl((String) additionalProperties.get(PACKAGE_URL));
         }
 
-        supportingFiles.add(new SupportingFile("README.mustache", "", "README.md"));
+        String readmePath ="README.md";
+        String readmeTemplate = "README.mustache";
+        if (generateSourceCodeOnly) {
+            readmePath = packageName + "_" + readmePath;
+            readmeTemplate = "README_onlypackage.mustache";
+        }
+        supportingFiles.add(new SupportingFile(readmeTemplate, "", readmePath));
 
-        supportingFiles.add(new SupportingFile("tox.mustache", "", "tox.ini"));
-        supportingFiles.add(new SupportingFile("test-requirements.mustache", "", "test-requirements.txt"));
-        supportingFiles.add(new SupportingFile("requirements.mustache", "", "requirements.txt"));
+        if (!generateSourceCodeOnly){
+            supportingFiles.add(new SupportingFile("tox.mustache", "", "tox.ini"));
+            supportingFiles.add(new SupportingFile("test-requirements.mustache", "", "test-requirements.txt"));
+            supportingFiles.add(new SupportingFile("requirements.mustache", "", "requirements.txt"));
 
+            supportingFiles.add(new SupportingFile("git_push.sh.mustache", "", "git_push.sh"));
+            supportingFiles.add(new SupportingFile("gitignore.mustache", "", ".gitignore"));
+            supportingFiles.add(new SupportingFile("travis.mustache", "", ".travis.yml"));
+            supportingFiles.add(new SupportingFile("setup.mustache", "", "setup.py"));
+        }
         supportingFiles.add(new SupportingFile("configuration.mustache", packageName, "configuration.py"));
         supportingFiles.add(new SupportingFile("__init__package.mustache", packageName, "__init__.py"));
         supportingFiles.add(new SupportingFile("__init__model.mustache", packageName + File.separatorChar + modelPackage, "__init__.py"));
@@ -224,10 +250,7 @@ public class PythonClientCodegen extends DefaultCodegen implements CodegenConfig
         if (Boolean.FALSE.equals(excludeTests)) {
             supportingFiles.add(new SupportingFile("__init__test.mustache", testFolder, "__init__.py"));
         }
-        supportingFiles.add(new SupportingFile("git_push.sh.mustache", "", "git_push.sh"));
-        supportingFiles.add(new SupportingFile("gitignore.mustache", "", ".gitignore"));
-        supportingFiles.add(new SupportingFile("travis.mustache", "", ".travis.yml"));
-        supportingFiles.add(new SupportingFile("setup.mustache", "", "setup.py"));
+
         supportingFiles.add(new SupportingFile("api_client.mustache", packageName, "api_client.py"));
 
         if ("asyncio".equals(getLibrary())) {
diff --git a/modules/openapi-generator/src/main/resources/python/README.mustache b/modules/openapi-generator/src/main/resources/python/README.mustache
index cf92dc583db..be835339063 100644
--- a/modules/openapi-generator/src/main/resources/python/README.mustache
+++ b/modules/openapi-generator/src/main/resources/python/README.mustache
@@ -52,78 +52,4 @@ import {{{packageName}}}
 
 Please follow the [installation procedure](#installation--usage) and then run the following:
 
-```python
-from __future__ import print_function
-import time
-import {{{packageName}}}
-from {{{packageName}}}.rest import ApiException
-from pprint import pprint
-{{#apiInfo}}{{#apis}}{{#-first}}{{#operations}}{{#operation}}{{#-first}}{{#hasAuthMethods}}{{#authMethods}}{{#isBasic}}
-# Configure HTTP basic authorization: {{{name}}}
-configuration = {{{packageName}}}.Configuration()
-configuration.username = 'YOUR_USERNAME'
-configuration.password = 'YOUR_PASSWORD'{{/isBasic}}{{#isApiKey}}
-# Configure API key authorization: {{{name}}}
-configuration = {{{packageName}}}.Configuration()
-configuration.api_key['{{{keyParamName}}}'] = 'YOUR_API_KEY'
-# Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
-# configuration.api_key_prefix['{{{keyParamName}}}'] = 'Bearer'{{/isApiKey}}{{#isOAuth}}
-# Configure OAuth2 access token for authorization: {{{name}}}
-configuration = {{{packageName}}}.Configuration()
-configuration.access_token = 'YOUR_ACCESS_TOKEN'{{/isOAuth}}{{/authMethods}}
-{{/hasAuthMethods}}
-
-# create an instance of the API class
-api_instance = {{{packageName}}}.{{{classname}}}({{{packageName}}}.ApiClient(configuration))
-{{#allParams}}{{paramName}} = {{{example}}} # {{{dataType}}} | {{{description}}}{{^required}} (optional){{/required}}{{#defaultValue}} (default to {{{.}}}){{/defaultValue}}
-{{/allParams}}
-
-try:
-{{#summary}}    # {{{.}}}
-{{/summary}}    {{#returnType}}api_response = {{/returnType}}api_instance.{{{operationId}}}({{#allParams}}{{#required}}{{paramName}}{{/required}}{{^required}}{{paramName}}={{paramName}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}}){{#returnType}}
-    pprint(api_response){{/returnType}}
-except ApiException as e:
-    print("Exception when calling {{classname}}->{{operationId}}: %s\n" % e)
-{{/-first}}{{/operation}}{{/operations}}{{/-first}}{{/apis}}{{/apiInfo}}
-```
-
-## Documentation for API Endpoints
-
-All URIs are relative to *{{basePath}}*
-
-Class | Method | HTTP request | Description
------------- | ------------- | ------------- | -------------
-{{#apiInfo}}{{#apis}}{{#operations}}{{#operation}}*{{classname}}* | [**{{operationId}}**]({{apiDocPath}}{{classname}}.md#{{operationIdLowerCase}}) | **{{httpMethod}}** {{path}} | {{#summary}}{{summary}}{{/summary}}
-{{/operation}}{{/operations}}{{/apis}}{{/apiInfo}}
-
-## Documentation For Models
-
-{{#models}}{{#model}} - [{{{classname}}}]({{modelDocPath}}{{{classname}}}.md)
-{{/model}}{{/models}}
-
-## Documentation For Authorization
-
-{{^authMethods}} All endpoints do not require authorization.
-{{/authMethods}}{{#authMethods}}{{#last}} Authentication schemes defined for the API:{{/last}}{{/authMethods}}
-{{#authMethods}}## {{{name}}}
-
-{{#isApiKey}}- **Type**: API key
-- **API key parameter name**: {{{keyParamName}}}
-- **Location**: {{#isKeyInQuery}}URL query string{{/isKeyInQuery}}{{#isKeyInHeader}}HTTP header{{/isKeyInHeader}}
-{{/isApiKey}}
-{{#isBasic}}- **Type**: HTTP basic authentication
-{{/isBasic}}
-{{#isOAuth}}- **Type**: OAuth
-- **Flow**: {{{flow}}}
-- **Authorization URL**: {{{authorizationUrl}}}
-- **Scopes**: {{^scopes}}N/A{{/scopes}}
-{{#scopes}} - **{{{scope}}}**: {{{description}}}
-{{/scopes}}
-{{/isOAuth}}
-
-{{/authMethods}}
-
-## Author
-
-{{#apiInfo}}{{#apis}}{{^hasMore}}{{infoEmail}}
-{{/hasMore}}{{/apis}}{{/apiInfo}}
+{{> common_README }}
diff --git a/modules/openapi-generator/src/main/resources/python/README_onlypackage.mustache b/modules/openapi-generator/src/main/resources/python/README_onlypackage.mustache
new file mode 100644
index 00000000000..826454b1eac
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/python/README_onlypackage.mustache
@@ -0,0 +1,44 @@
+# {{{projectName}}}
+{{#appDescription}}
+{{{appDescription}}}
+{{/appDescription}}
+
+The `{{packageName}}` package is automatically generated by the [OpenAPI Generator](https://openapi-generator.tech) project:
+
+- API version: {{appVersion}}
+- Package version: {{packageVersion}}
+{{^hideGenerationTimestamp}}
+- Build date: {{generatedDate}}
+{{/hideGenerationTimestamp}}
+- Build package: {{generatorClass}}
+{{#infoUrl}}
+For more information, please visit [{{{infoUrl}}}]({{{infoUrl}}})
+{{/infoUrl}}
+
+## Requirements.
+
+Python 2.7 and 3.4+
+
+## Installation & Usage
+
+This python library package is generated without supporting files like setup.py or requirements files
+
+To be able to use it, you will need these dependencies in your own package that uses this library:
+
+* urllib3 >= 1.15
+* six >= 1.10
+* certifi
+* python-dateutil
+{{#asyncio}}
+* aiohttp
+{{/asyncio}}
+{{#tornado}}
+* tornado>=4.2,<5
+{{/tornado}}
+
+## Getting Started
+
+In your own code, to use this library to connect and interact with {{{projectName}}},
+you can run the following:
+
+{{> common_README }}
diff --git a/modules/openapi-generator/src/main/resources/python/__init__package.mustache b/modules/openapi-generator/src/main/resources/python/__init__package.mustache
index cd42506f540..a21c6dbac9d 100644
--- a/modules/openapi-generator/src/main/resources/python/__init__package.mustache
+++ b/modules/openapi-generator/src/main/resources/python/__init__package.mustache
@@ -6,6 +6,8 @@
 
 from __future__ import absolute_import
 
+__version__ = "{{packageVersion}}"
+
 # import apis into sdk package
 {{#apiInfo}}{{#apis}}from {{apiPackage}}.{{classVarName}} import {{classname}}
 {{/apis}}{{/apiInfo}}
diff --git a/modules/openapi-generator/src/main/resources/python/common_README.mustache b/modules/openapi-generator/src/main/resources/python/common_README.mustache
new file mode 100644
index 00000000000..f203456f208
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/python/common_README.mustache
@@ -0,0 +1,75 @@
+```python
+from __future__ import print_function
+import time
+import {{{packageName}}}
+from {{{packageName}}}.rest import ApiException
+from pprint import pprint
+{{#apiInfo}}{{#apis}}{{#-first}}{{#operations}}{{#operation}}{{#-first}}{{#hasAuthMethods}}{{#authMethods}}{{#isBasic}}
+# Configure HTTP basic authorization: {{{name}}}
+configuration = {{{packageName}}}.Configuration()
+configuration.username = 'YOUR_USERNAME'
+configuration.password = 'YOUR_PASSWORD'{{/isBasic}}{{#isApiKey}}
+# Configure API key authorization: {{{name}}}
+configuration = {{{packageName}}}.Configuration()
+configuration.api_key['{{{keyParamName}}}'] = 'YOUR_API_KEY'
+# Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
+# configuration.api_key_prefix['{{{keyParamName}}}'] = 'Bearer'{{/isApiKey}}{{#isOAuth}}
+# Configure OAuth2 access token for authorization: {{{name}}}
+configuration = {{{packageName}}}.Configuration()
+configuration.access_token = 'YOUR_ACCESS_TOKEN'{{/isOAuth}}{{/authMethods}}
+{{/hasAuthMethods}}
+
+# create an instance of the API class
+api_instance = {{{packageName}}}.{{{classname}}}({{{packageName}}}.ApiClient(configuration))
+{{#allParams}}{{paramName}} = {{{example}}} # {{{dataType}}} | {{{description}}}{{^required}} (optional){{/required}}{{#defaultValue}} (default to {{{.}}}){{/defaultValue}}
+{{/allParams}}
+
+try:
+{{#summary}}    # {{{.}}}
+{{/summary}}    {{#returnType}}api_response = {{/returnType}}api_instance.{{{operationId}}}({{#allParams}}{{#required}}{{paramName}}{{/required}}{{^required}}{{paramName}}={{paramName}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}}){{#returnType}}
+    pprint(api_response){{/returnType}}
+except ApiException as e:
+    print("Exception when calling {{classname}}->{{operationId}}: %s\n" % e)
+{{/-first}}{{/operation}}{{/operations}}{{/-first}}{{/apis}}{{/apiInfo}}
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to *{{basePath}}*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+{{#apiInfo}}{{#apis}}{{#operations}}{{#operation}}*{{classname}}* | [**{{operationId}}**]({{apiDocPath}}{{classname}}.md#{{operationIdLowerCase}}) | **{{httpMethod}}** {{path}} | {{#summary}}{{summary}}{{/summary}}
+{{/operation}}{{/operations}}{{/apis}}{{/apiInfo}}
+
+## Documentation For Models
+
+{{#models}}{{#model}} - [{{{classname}}}]({{modelDocPath}}{{{classname}}}.md)
+{{/model}}{{/models}}
+
+## Documentation For Authorization
+
+{{^authMethods}} All endpoints do not require authorization.
+{{/authMethods}}{{#authMethods}}{{#last}} Authentication schemes defined for the API:{{/last}}{{/authMethods}}
+{{#authMethods}}## {{{name}}}
+
+{{#isApiKey}}- **Type**: API key
+- **API key parameter name**: {{{keyParamName}}}
+- **Location**: {{#isKeyInQuery}}URL query string{{/isKeyInQuery}}{{#isKeyInHeader}}HTTP header{{/isKeyInHeader}}
+{{/isApiKey}}
+{{#isBasic}}- **Type**: HTTP basic authentication
+{{/isBasic}}
+{{#isOAuth}}- **Type**: OAuth
+- **Flow**: {{{flow}}}
+- **Authorization URL**: {{{authorizationUrl}}}
+- **Scopes**: {{^scopes}}N/A{{/scopes}}
+{{#scopes}} - **{{{scope}}}**: {{{description}}}
+{{/scopes}}
+{{/isOAuth}}
+
+{{/authMethods}}
+
+## Author
+
+{{#apiInfo}}{{#apis}}{{^hasMore}}{{infoEmail}}
+{{/hasMore}}{{/apis}}{{/apiInfo}}
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/options/PythonClientOptionsProvider.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/options/PythonClientOptionsProvider.java
index df8647e65a4..099d2369e95 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/options/PythonClientOptionsProvider.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/options/PythonClientOptionsProvider.java
@@ -44,6 +44,7 @@ public class PythonClientOptionsProvider implements OptionsProvider {
                 .put(CodegenConstants.PACKAGE_VERSION, PACKAGE_VERSION_VALUE)
                 .put(CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG, "true")
                 .put(CodegenConstants.HIDE_GENERATION_TIMESTAMP, "true")
+                .put(CodegenConstants.SOURCECODEONLY_GENERATION, "false")
                 .put(CodegenConstants.LIBRARY, "urllib3")
                 .build();
     }
diff --git a/samples/client/petstore/python-asyncio/README.md b/samples/client/petstore/python-asyncio/README.md
index 40e3e1e2e76..b76d6153e89 100644
--- a/samples/client/petstore/python-asyncio/README.md
+++ b/samples/client/petstore/python-asyncio/README.md
@@ -179,3 +179,4 @@ Class | Method | HTTP request | Description
 
 
 
+
diff --git a/samples/client/petstore/python-asyncio/docs/PetApi.md b/samples/client/petstore/python-asyncio/docs/PetApi.md
index 583883799e2..9b8fd577a52 100644
--- a/samples/client/petstore/python-asyncio/docs/PetApi.md
+++ b/samples/client/petstore/python-asyncio/docs/PetApi.md
@@ -430,7 +430,7 @@ Name | Type | Description  | Notes
 [[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)
 
 # **upload_file_with_required_file**
-> ApiResponse upload_file_with_required_file(pet_id, file, additional_metadata=additional_metadata)
+> ApiResponse upload_file_with_required_file(pet_id, required_file, additional_metadata=additional_metadata)
 
 uploads an image (required)
 
@@ -449,12 +449,12 @@ configuration.access_token = 'YOUR_ACCESS_TOKEN'
 # create an instance of the API class
 api_instance = petstore_api.PetApi(petstore_api.ApiClient(configuration))
 pet_id = 56 # int | ID of pet to update
-file = '/path/to/file' # file | file to upload
+required_file = '/path/to/file' # file | file to upload
 additional_metadata = 'additional_metadata_example' # str | Additional data to pass to server (optional)
 
 try:
     # uploads an image (required)
-    api_response = api_instance.upload_file_with_required_file(pet_id, file, additional_metadata=additional_metadata)
+    api_response = api_instance.upload_file_with_required_file(pet_id, required_file, additional_metadata=additional_metadata)
     pprint(api_response)
 except ApiException as e:
     print("Exception when calling PetApi->upload_file_with_required_file: %s\n" % e)
@@ -465,7 +465,7 @@ except ApiException as e:
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
  **pet_id** | **int**| ID of pet to update | 
- **file** | **file**| file to upload | 
+ **required_file** | **file**| file to upload | 
  **additional_metadata** | **str**| Additional data to pass to server | [optional] 
 
 ### Return type
diff --git a/samples/client/petstore/python-asyncio/petstore_api/__init__.py b/samples/client/petstore/python-asyncio/petstore_api/__init__.py
index ec4d33177cc..f54256a687c 100644
--- a/samples/client/petstore/python-asyncio/petstore_api/__init__.py
+++ b/samples/client/petstore/python-asyncio/petstore_api/__init__.py
@@ -14,6 +14,8 @@
 
 from __future__ import absolute_import
 
+__version__ = "1.0.0"
+
 # import apis into sdk package
 from petstore_api.api.another_fake_api import AnotherFakeApi
 from petstore_api.api.fake_api import FakeApi
diff --git a/samples/client/petstore/python-asyncio/petstore_api/api/pet_api.py b/samples/client/petstore/python-asyncio/petstore_api/api/pet_api.py
index cccf4ed7b5e..c0a119de975 100644
--- a/samples/client/petstore/python-asyncio/petstore_api/api/pet_api.py
+++ b/samples/client/petstore/python-asyncio/petstore_api/api/pet_api.py
@@ -812,17 +812,17 @@ class PetApi(object):
             _request_timeout=local_var_params.get('_request_timeout'),
             collection_formats=collection_formats)
 
-    def upload_file_with_required_file(self, pet_id, file, **kwargs):  # noqa: E501
+    def upload_file_with_required_file(self, pet_id, required_file, **kwargs):  # noqa: E501
         """uploads an image (required)  # noqa: E501
 
         This method makes a synchronous HTTP request by default. To make an
         asynchronous HTTP request, please pass async=True
-        >>> thread = api.upload_file_with_required_file(pet_id, file, async=True)
+        >>> thread = api.upload_file_with_required_file(pet_id, required_file, async=True)
         >>> result = thread.get()
 
         :param async bool
         :param int pet_id: ID of pet to update (required)
-        :param file file: file to upload (required)
+        :param file required_file: file to upload (required)
         :param str additional_metadata: Additional data to pass to server
         :return: ApiResponse
                  If the method is called asynchronously,
@@ -830,22 +830,22 @@ class PetApi(object):
         """
         kwargs['_return_http_data_only'] = True
         if kwargs.get('async'):
-            return self.upload_file_with_required_file_with_http_info(pet_id, file, **kwargs)  # noqa: E501
+            return self.upload_file_with_required_file_with_http_info(pet_id, required_file, **kwargs)  # noqa: E501
         else:
-            (data) = self.upload_file_with_required_file_with_http_info(pet_id, file, **kwargs)  # noqa: E501
+            (data) = self.upload_file_with_required_file_with_http_info(pet_id, required_file, **kwargs)  # noqa: E501
             return data
 
-    def upload_file_with_required_file_with_http_info(self, pet_id, file, **kwargs):  # noqa: E501
+    def upload_file_with_required_file_with_http_info(self, pet_id, required_file, **kwargs):  # noqa: E501
         """uploads an image (required)  # noqa: E501
 
         This method makes a synchronous HTTP request by default. To make an
         asynchronous HTTP request, please pass async=True
-        >>> thread = api.upload_file_with_required_file_with_http_info(pet_id, file, async=True)
+        >>> thread = api.upload_file_with_required_file_with_http_info(pet_id, required_file, async=True)
         >>> result = thread.get()
 
         :param async bool
         :param int pet_id: ID of pet to update (required)
-        :param file file: file to upload (required)
+        :param file required_file: file to upload (required)
         :param str additional_metadata: Additional data to pass to server
         :return: ApiResponse
                  If the method is called asynchronously,
@@ -854,7 +854,7 @@ class PetApi(object):
 
         local_var_params = locals()
 
-        all_params = ['pet_id', 'file', 'additional_metadata']  # noqa: E501
+        all_params = ['pet_id', 'required_file', 'additional_metadata']  # noqa: E501
         all_params.append('async')
         all_params.append('_return_http_data_only')
         all_params.append('_preload_content')
@@ -872,10 +872,10 @@ class PetApi(object):
         if ('pet_id' not in local_var_params or
                 local_var_params['pet_id'] is None):
             raise ValueError("Missing the required parameter `pet_id` when calling `upload_file_with_required_file`")  # noqa: E501
-        # verify the required parameter 'file' is set
-        if ('file' not in local_var_params or
-                local_var_params['file'] is None):
-            raise ValueError("Missing the required parameter `file` when calling `upload_file_with_required_file`")  # noqa: E501
+        # verify the required parameter 'required_file' is set
+        if ('required_file' not in local_var_params or
+                local_var_params['required_file'] is None):
+            raise ValueError("Missing the required parameter `required_file` when calling `upload_file_with_required_file`")  # noqa: E501
 
         collection_formats = {}
 
@@ -891,8 +891,8 @@ class PetApi(object):
         local_var_files = {}
         if 'additional_metadata' in local_var_params:
             form_params.append(('additionalMetadata', local_var_params['additional_metadata']))  # noqa: E501
-        if 'file' in local_var_params:
-            local_var_files['file'] = local_var_params['file']  # noqa: E501
+        if 'required_file' in local_var_params:
+            local_var_files['requiredFile'] = local_var_params['required_file']  # noqa: E501
 
         body_params = None
         # HTTP header `Accept`
diff --git a/samples/client/petstore/python-tornado/README.md b/samples/client/petstore/python-tornado/README.md
index 40e3e1e2e76..b76d6153e89 100644
--- a/samples/client/petstore/python-tornado/README.md
+++ b/samples/client/petstore/python-tornado/README.md
@@ -179,3 +179,4 @@ Class | Method | HTTP request | Description
 
 
 
+
diff --git a/samples/client/petstore/python-tornado/docs/PetApi.md b/samples/client/petstore/python-tornado/docs/PetApi.md
index 583883799e2..9b8fd577a52 100644
--- a/samples/client/petstore/python-tornado/docs/PetApi.md
+++ b/samples/client/petstore/python-tornado/docs/PetApi.md
@@ -430,7 +430,7 @@ Name | Type | Description  | Notes
 [[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)
 
 # **upload_file_with_required_file**
-> ApiResponse upload_file_with_required_file(pet_id, file, additional_metadata=additional_metadata)
+> ApiResponse upload_file_with_required_file(pet_id, required_file, additional_metadata=additional_metadata)
 
 uploads an image (required)
 
@@ -449,12 +449,12 @@ configuration.access_token = 'YOUR_ACCESS_TOKEN'
 # create an instance of the API class
 api_instance = petstore_api.PetApi(petstore_api.ApiClient(configuration))
 pet_id = 56 # int | ID of pet to update
-file = '/path/to/file' # file | file to upload
+required_file = '/path/to/file' # file | file to upload
 additional_metadata = 'additional_metadata_example' # str | Additional data to pass to server (optional)
 
 try:
     # uploads an image (required)
-    api_response = api_instance.upload_file_with_required_file(pet_id, file, additional_metadata=additional_metadata)
+    api_response = api_instance.upload_file_with_required_file(pet_id, required_file, additional_metadata=additional_metadata)
     pprint(api_response)
 except ApiException as e:
     print("Exception when calling PetApi->upload_file_with_required_file: %s\n" % e)
@@ -465,7 +465,7 @@ except ApiException as e:
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
  **pet_id** | **int**| ID of pet to update | 
- **file** | **file**| file to upload | 
+ **required_file** | **file**| file to upload | 
  **additional_metadata** | **str**| Additional data to pass to server | [optional] 
 
 ### Return type
diff --git a/samples/client/petstore/python-tornado/petstore_api/__init__.py b/samples/client/petstore/python-tornado/petstore_api/__init__.py
index ec4d33177cc..f54256a687c 100644
--- a/samples/client/petstore/python-tornado/petstore_api/__init__.py
+++ b/samples/client/petstore/python-tornado/petstore_api/__init__.py
@@ -14,6 +14,8 @@
 
 from __future__ import absolute_import
 
+__version__ = "1.0.0"
+
 # import apis into sdk package
 from petstore_api.api.another_fake_api import AnotherFakeApi
 from petstore_api.api.fake_api import FakeApi
diff --git a/samples/client/petstore/python-tornado/petstore_api/api/pet_api.py b/samples/client/petstore/python-tornado/petstore_api/api/pet_api.py
index cccf4ed7b5e..c0a119de975 100644
--- a/samples/client/petstore/python-tornado/petstore_api/api/pet_api.py
+++ b/samples/client/petstore/python-tornado/petstore_api/api/pet_api.py
@@ -812,17 +812,17 @@ class PetApi(object):
             _request_timeout=local_var_params.get('_request_timeout'),
             collection_formats=collection_formats)
 
-    def upload_file_with_required_file(self, pet_id, file, **kwargs):  # noqa: E501
+    def upload_file_with_required_file(self, pet_id, required_file, **kwargs):  # noqa: E501
         """uploads an image (required)  # noqa: E501
 
         This method makes a synchronous HTTP request by default. To make an
         asynchronous HTTP request, please pass async=True
-        >>> thread = api.upload_file_with_required_file(pet_id, file, async=True)
+        >>> thread = api.upload_file_with_required_file(pet_id, required_file, async=True)
         >>> result = thread.get()
 
         :param async bool
         :param int pet_id: ID of pet to update (required)
-        :param file file: file to upload (required)
+        :param file required_file: file to upload (required)
         :param str additional_metadata: Additional data to pass to server
         :return: ApiResponse
                  If the method is called asynchronously,
@@ -830,22 +830,22 @@ class PetApi(object):
         """
         kwargs['_return_http_data_only'] = True
         if kwargs.get('async'):
-            return self.upload_file_with_required_file_with_http_info(pet_id, file, **kwargs)  # noqa: E501
+            return self.upload_file_with_required_file_with_http_info(pet_id, required_file, **kwargs)  # noqa: E501
         else:
-            (data) = self.upload_file_with_required_file_with_http_info(pet_id, file, **kwargs)  # noqa: E501
+            (data) = self.upload_file_with_required_file_with_http_info(pet_id, required_file, **kwargs)  # noqa: E501
             return data
 
-    def upload_file_with_required_file_with_http_info(self, pet_id, file, **kwargs):  # noqa: E501
+    def upload_file_with_required_file_with_http_info(self, pet_id, required_file, **kwargs):  # noqa: E501
         """uploads an image (required)  # noqa: E501
 
         This method makes a synchronous HTTP request by default. To make an
         asynchronous HTTP request, please pass async=True
-        >>> thread = api.upload_file_with_required_file_with_http_info(pet_id, file, async=True)
+        >>> thread = api.upload_file_with_required_file_with_http_info(pet_id, required_file, async=True)
         >>> result = thread.get()
 
         :param async bool
         :param int pet_id: ID of pet to update (required)
-        :param file file: file to upload (required)
+        :param file required_file: file to upload (required)
         :param str additional_metadata: Additional data to pass to server
         :return: ApiResponse
                  If the method is called asynchronously,
@@ -854,7 +854,7 @@ class PetApi(object):
 
         local_var_params = locals()
 
-        all_params = ['pet_id', 'file', 'additional_metadata']  # noqa: E501
+        all_params = ['pet_id', 'required_file', 'additional_metadata']  # noqa: E501
         all_params.append('async')
         all_params.append('_return_http_data_only')
         all_params.append('_preload_content')
@@ -872,10 +872,10 @@ class PetApi(object):
         if ('pet_id' not in local_var_params or
                 local_var_params['pet_id'] is None):
             raise ValueError("Missing the required parameter `pet_id` when calling `upload_file_with_required_file`")  # noqa: E501
-        # verify the required parameter 'file' is set
-        if ('file' not in local_var_params or
-                local_var_params['file'] is None):
-            raise ValueError("Missing the required parameter `file` when calling `upload_file_with_required_file`")  # noqa: E501
+        # verify the required parameter 'required_file' is set
+        if ('required_file' not in local_var_params or
+                local_var_params['required_file'] is None):
+            raise ValueError("Missing the required parameter `required_file` when calling `upload_file_with_required_file`")  # noqa: E501
 
         collection_formats = {}
 
@@ -891,8 +891,8 @@ class PetApi(object):
         local_var_files = {}
         if 'additional_metadata' in local_var_params:
             form_params.append(('additionalMetadata', local_var_params['additional_metadata']))  # noqa: E501
-        if 'file' in local_var_params:
-            local_var_files['file'] = local_var_params['file']  # noqa: E501
+        if 'required_file' in local_var_params:
+            local_var_files['requiredFile'] = local_var_params['required_file']  # noqa: E501
 
         body_params = None
         # HTTP header `Accept`
diff --git a/samples/client/petstore/python/README.md b/samples/client/petstore/python/README.md
index 40e3e1e2e76..b76d6153e89 100644
--- a/samples/client/petstore/python/README.md
+++ b/samples/client/petstore/python/README.md
@@ -179,3 +179,4 @@ Class | Method | HTTP request | Description
 
 
 
+
diff --git a/samples/client/petstore/python/docs/PetApi.md b/samples/client/petstore/python/docs/PetApi.md
index 583883799e2..9b8fd577a52 100644
--- a/samples/client/petstore/python/docs/PetApi.md
+++ b/samples/client/petstore/python/docs/PetApi.md
@@ -430,7 +430,7 @@ Name | Type | Description  | Notes
 [[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)
 
 # **upload_file_with_required_file**
-> ApiResponse upload_file_with_required_file(pet_id, file, additional_metadata=additional_metadata)
+> ApiResponse upload_file_with_required_file(pet_id, required_file, additional_metadata=additional_metadata)
 
 uploads an image (required)
 
@@ -449,12 +449,12 @@ configuration.access_token = 'YOUR_ACCESS_TOKEN'
 # create an instance of the API class
 api_instance = petstore_api.PetApi(petstore_api.ApiClient(configuration))
 pet_id = 56 # int | ID of pet to update
-file = '/path/to/file' # file | file to upload
+required_file = '/path/to/file' # file | file to upload
 additional_metadata = 'additional_metadata_example' # str | Additional data to pass to server (optional)
 
 try:
     # uploads an image (required)
-    api_response = api_instance.upload_file_with_required_file(pet_id, file, additional_metadata=additional_metadata)
+    api_response = api_instance.upload_file_with_required_file(pet_id, required_file, additional_metadata=additional_metadata)
     pprint(api_response)
 except ApiException as e:
     print("Exception when calling PetApi->upload_file_with_required_file: %s\n" % e)
@@ -465,7 +465,7 @@ except ApiException as e:
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
  **pet_id** | **int**| ID of pet to update | 
- **file** | **file**| file to upload | 
+ **required_file** | **file**| file to upload | 
  **additional_metadata** | **str**| Additional data to pass to server | [optional] 
 
 ### Return type
diff --git a/samples/client/petstore/python/petstore_api/__init__.py b/samples/client/petstore/python/petstore_api/__init__.py
index ec4d33177cc..f54256a687c 100644
--- a/samples/client/petstore/python/petstore_api/__init__.py
+++ b/samples/client/petstore/python/petstore_api/__init__.py
@@ -14,6 +14,8 @@
 
 from __future__ import absolute_import
 
+__version__ = "1.0.0"
+
 # import apis into sdk package
 from petstore_api.api.another_fake_api import AnotherFakeApi
 from petstore_api.api.fake_api import FakeApi
diff --git a/samples/client/petstore/python/petstore_api/api/pet_api.py b/samples/client/petstore/python/petstore_api/api/pet_api.py
index cccf4ed7b5e..c0a119de975 100644
--- a/samples/client/petstore/python/petstore_api/api/pet_api.py
+++ b/samples/client/petstore/python/petstore_api/api/pet_api.py
@@ -812,17 +812,17 @@ class PetApi(object):
             _request_timeout=local_var_params.get('_request_timeout'),
             collection_formats=collection_formats)
 
-    def upload_file_with_required_file(self, pet_id, file, **kwargs):  # noqa: E501
+    def upload_file_with_required_file(self, pet_id, required_file, **kwargs):  # noqa: E501
         """uploads an image (required)  # noqa: E501
 
         This method makes a synchronous HTTP request by default. To make an
         asynchronous HTTP request, please pass async=True
-        >>> thread = api.upload_file_with_required_file(pet_id, file, async=True)
+        >>> thread = api.upload_file_with_required_file(pet_id, required_file, async=True)
         >>> result = thread.get()
 
         :param async bool
         :param int pet_id: ID of pet to update (required)
-        :param file file: file to upload (required)
+        :param file required_file: file to upload (required)
         :param str additional_metadata: Additional data to pass to server
         :return: ApiResponse
                  If the method is called asynchronously,
@@ -830,22 +830,22 @@ class PetApi(object):
         """
         kwargs['_return_http_data_only'] = True
         if kwargs.get('async'):
-            return self.upload_file_with_required_file_with_http_info(pet_id, file, **kwargs)  # noqa: E501
+            return self.upload_file_with_required_file_with_http_info(pet_id, required_file, **kwargs)  # noqa: E501
         else:
-            (data) = self.upload_file_with_required_file_with_http_info(pet_id, file, **kwargs)  # noqa: E501
+            (data) = self.upload_file_with_required_file_with_http_info(pet_id, required_file, **kwargs)  # noqa: E501
             return data
 
-    def upload_file_with_required_file_with_http_info(self, pet_id, file, **kwargs):  # noqa: E501
+    def upload_file_with_required_file_with_http_info(self, pet_id, required_file, **kwargs):  # noqa: E501
         """uploads an image (required)  # noqa: E501
 
         This method makes a synchronous HTTP request by default. To make an
         asynchronous HTTP request, please pass async=True
-        >>> thread = api.upload_file_with_required_file_with_http_info(pet_id, file, async=True)
+        >>> thread = api.upload_file_with_required_file_with_http_info(pet_id, required_file, async=True)
         >>> result = thread.get()
 
         :param async bool
         :param int pet_id: ID of pet to update (required)
-        :param file file: file to upload (required)
+        :param file required_file: file to upload (required)
         :param str additional_metadata: Additional data to pass to server
         :return: ApiResponse
                  If the method is called asynchronously,
@@ -854,7 +854,7 @@ class PetApi(object):
 
         local_var_params = locals()
 
-        all_params = ['pet_id', 'file', 'additional_metadata']  # noqa: E501
+        all_params = ['pet_id', 'required_file', 'additional_metadata']  # noqa: E501
         all_params.append('async')
         all_params.append('_return_http_data_only')
         all_params.append('_preload_content')
@@ -872,10 +872,10 @@ class PetApi(object):
         if ('pet_id' not in local_var_params or
                 local_var_params['pet_id'] is None):
             raise ValueError("Missing the required parameter `pet_id` when calling `upload_file_with_required_file`")  # noqa: E501
-        # verify the required parameter 'file' is set
-        if ('file' not in local_var_params or
-                local_var_params['file'] is None):
-            raise ValueError("Missing the required parameter `file` when calling `upload_file_with_required_file`")  # noqa: E501
+        # verify the required parameter 'required_file' is set
+        if ('required_file' not in local_var_params or
+                local_var_params['required_file'] is None):
+            raise ValueError("Missing the required parameter `required_file` when calling `upload_file_with_required_file`")  # noqa: E501
 
         collection_formats = {}
 
@@ -891,8 +891,8 @@ class PetApi(object):
         local_var_files = {}
         if 'additional_metadata' in local_var_params:
             form_params.append(('additionalMetadata', local_var_params['additional_metadata']))  # noqa: E501
-        if 'file' in local_var_params:
-            local_var_files['file'] = local_var_params['file']  # noqa: E501
+        if 'required_file' in local_var_params:
+            local_var_files['requiredFile'] = local_var_params['required_file']  # noqa: E501
 
         body_params = None
         # HTTP header `Accept`