[BUG] [Python] Missing new python-httpx template in v7.16.0

[mike-optifino]

Description

I'm trying to use the python-httpx template, but I don't see that option in the list of available options.

openapi-generator version

openapi-generator-cli version
7.16.0

Generation Details

not applicable

Steps to reproduce

pip install openapi-generator-cli[jdk4py]

openapi-generator-cli generate -g python-httpx -i ./openapi.json -o ./sdk

get the error

Can't load config class with name 'python-httpx'
Available:
**
python
python-pydantic-v1
python-fastapi
python-flask
python-aiohttp
python-blueplanet
**
[error] Check the spelling of the generator's name and try again.

Related issues/PRs

I already reported this here, but the guys said it was a problem with the generator itself. They said that the generator doesn't have an implementation of CodegenConfig for python-httpx

[wing328]

httpx is a library option as shown in https://openapi-generator.tech/docs/generators/python/

can you try -g python --library httpx in CLI for example?

[eggplants]

httpx isn't listed for now.

[eggplants]

@wing328 @mike-optifino The httpx library template seems to be working.

~/test
❯ openapi-generator-cli version
(node:10187) [DEP0190] DeprecationWarning: Passing args to a child process with shell option true can lead to security vulnerabilities, as the arguments are not escaped, only concatenated.
(Use `node --trace-deprecation ...` to show where the warning was created)
7.16.0

~/test
❯ wget 'https://raw.githubusercontent.com/OpenAPITools/openapi-generator/master/samples/server/petstore/erlang-server/priv/openapi.json'
--2025-10-23 00:46:18--  https://raw.githubusercontent.com/OpenAPITools/openapi-generator/master/samples/server/petstore/erlang-server/priv/openapi.json
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 2606:50c0:8002::154, 2606:50c0:8001::154, 2606:50c0:8000::154, ...
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|2606:50c0:8002::154|:443... connected.
HTTP request sent, awaiting response... 200 OK                        Length: 29510 (29K) [text/plain]
Saving to: ‘openapi.json’                                             
openapi.json      100%[===========>]  28.82K  --.-KB/s    in 0.001s   
2025-10-23 00:46:18 (22.4 MB/s) - ‘openapi.json’ saved [29510/29510]  

~/test
❯ openapi-generator-cli generate -g python --library foo -i openapi.json
Did set selected version to 7.16.0
(node:9181) [DEP0190] DeprecationWarning: Passing args to a child process with shell option true can lead to security vulnerabilities, as the arguments are not escaped, only concatenated.
(Use `node --trace-deprecation ...` to show where the warning was created)
Exception in thread "main" java.lang.RuntimeException: Unknown library: foo
Available libraries:
  urllib3
  asyncio
  tornado
  httpx
        at org.openapitools.codegen.DefaultCodegen.setLibrary(DefaultCodegen.java:6456)
        at org.openapitools.codegen.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:754)
        at org.openapitools.codegen.cmd.Generate.execute(Generate.java:527)
        at org.openapitools.codegen.cmd.OpenApiGeneratorCommand.run(OpenApiGeneratorCommand.java:32)
        at org.openapitools.codegen.OpenAPIGenerator.main(OpenAPIGenerator.java:66)

~/test
❯ openapi-generator-cli generate -g python --library httpx -i openapi.json
(node:9332) [DEP0190] DeprecationWarning: Passing args to a child process with shell option true can lead to security vulnerabilities, as the arguments are not escaped, only concatenated.
(Use `node --trace-deprecation ...` to show where the warning was created)
[main] INFO  o.o.codegen.DefaultGenerator - Generating with dryRun=false
[main] INFO  o.o.codegen.DefaultGenerator - OpenAPI Generator: python (client)
[main] INFO  o.o.codegen.DefaultGenerator - Generator 'python' is considered stable.
[main] INFO  o.o.c.l.AbstractPythonCodegen - Environment variable PYTHON_POST_PROCESS_FILE not defined so the Python code may not be properly formatted. To define it, try 'export PYTHON_POST_PROCESS_FILE="/usr/local/bin/yapf -i"' (Linux/Mac)
[main] INFO  o.o.c.l.AbstractPythonCodegen - NOTE: To enable file post-processing, 'enablePostProcessFile' must be set to `true` (--enable-post-process-file for CLI).
[main] WARN  o.o.codegen.utils.ModelUtils - Failed to get the schema name: null
[main] INFO  o.o.codegen.DefaultGenerator - Model updatePetWithForm_request not generated since it's marked as unused (due to form parameters) and `skipFormModel` (global property) set to true (default)
[main] INFO  o.o.codegen.DefaultGenerator - Model uploadFile_request not generated since it's marked as unused (due to form parameters) and `skipFormModel` (global property) set to true (default)
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/models/api_response.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_api_response.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/ApiResponse.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/models/category.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_category.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/Category.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/models/order.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_order.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/Order.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/models/pet.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_pet.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/Pet.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/models/tag.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_tag.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/Tag.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/models/user.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_user.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/User.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/api/pet_api.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_pet_api.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/PetApi.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/api/store_api.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_store_api.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/StoreApi.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/api/user_api.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/test_user_api.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./docs/UserApi.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./README.md
[main] INFO  o.o.codegen.TemplateManager - writing file ./tox.ini
[main] INFO  o.o.codegen.TemplateManager - writing file ./test-requirements.txt
[main] INFO  o.o.codegen.TemplateManager - writing file ./requirements.txt
[main] INFO  o.o.codegen.TemplateManager - writing file ./setup.cfg
[main] INFO  o.o.codegen.TemplateManager - writing file ./git_push.sh
[main] INFO  o.o.codegen.TemplateManager - writing file ./.gitignore
[main] INFO  o.o.codegen.TemplateManager - writing file ./.travis.yml
[main] INFO  o.o.codegen.TemplateManager - writing file ./.github/workflows/python.yml
[main] INFO  o.o.codegen.TemplateManager - writing file ./.gitlab-ci.yml
[main] INFO  o.o.codegen.TemplateManager - writing file ./setup.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./pyproject.toml
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/py.typed
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/configuration.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/__init__.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/models/__init__.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/api/__init__.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/exceptions.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./test/__init__.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/api_client.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/api_response.py
[main] INFO  o.o.codegen.TemplateManager - writing file ./openapi_client/rest.py
[main] INFO  o.o.codegen.TemplateManager - Skipped ./.openapi-generator-ignore (Skipped by supportingFiles options supplied by user.)
[main] INFO  o.o.codegen.TemplateManager - writing file ./.openapi-generator/VERSION
[main] INFO  o.o.codegen.TemplateManager - writing file ./.openapi-generator/FILES
############################################################################################
# Thanks for using OpenAPI Generator.                                                      #
# We appreciate your support! Please consider donation to help us maintain this project.   #
# https://opencollective.com/openapi_generator/donate                                      #
############################################################################################

~/test
❯ grep -rF httpx
openapi_client/rest.py:import httpx
openapi_client/rest.py:RESTResponseType = httpx.Response
openapi_client/rest.py:        self.pool_manager: Optional[httpx.AsyncClient] = None
openapi_client/rest.py:                # Content-Type which generated by httpx
openapi_client/rest.py:    def _create_pool_manager(self) -> httpx.AsyncClient:
openapi_client/rest.py:        limits = httpx.Limits(max_connections=self.maxsize)
openapi_client/rest.py:            proxy = httpx.Proxy(
openapi_client/rest.py:        return httpx.AsyncClient(
requirements.txt:httpx = ">= 0.28.1"
setup.py:    "httpx >= 0.28.1",

[mike-optifino]

Ah, I missed that, thanks for the help guys.

[Dmitry9951]

@eggplants @wing328 Hello, guys.

The httpx library template seems to be working.

It seems it works, but it generates the wrong pyproject.toml file.

dependencies = [
  "urllib3 (>=2.1.0,<3.0.0)",
  "python-dateutil (>=2.8.2)",
  "aiohttp (>=3.8.4)",
  "aiohttp-retry (>=2.8.3)",
  "pydantic (>=2)",
  "typing-extensions (>=4.7.1)",
]

I use v7.17.0 version and call the following command

docker run --rm \
	openapitools/openapi-generator-cli:v7.17.0 generate \
	-i /openapi.json \
	-g python --library httpx \
	-o /output \
	--additional-properties=packageName=my-package

At the same time, the correct setup.py and requirements.txt are generated

[wing328]

thanks for the details

i just filed #22289 to fix it

please take a look when you've time

[Dmitry9951]

@wing328 thank you for such a lightning reaction.
I would also share my notes regarding pyproject.toml generated:

• while using poetry1=false/true/null, no matter which value is passed, poetry-based pyproject.toml is generated
• if nothing was specified, NOT poetry-based pyproject.toml is generated, BUT both [tool.poetry] and [too.poetry.group.dev.dependencies] are generated

Maybe you could fix this behaviour as well in your PR?

[wing328]

we can do it in a separate PR instead.

is that an enhancement you can contribute via a PR?

[wing328]

Maybe you could fix this behaviour as well in your PR?

looks like a new requirement so i would recommend opening a separate issue to track it

[Dmitry9951]

OK, got it. Let's try to merge your PR then. A question: when do you expect to include this change to a new release?

[wing328]

please refer to https://github.com/OpenAPITools/openapi-generator/milestones