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wing328 merged 5 commits into from
Oct 23, 2026
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Modernize Python version support in python-pydantic-v1 generator #25350

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d0ed6fb
Modernize Python version support in python-pydantic-v1 generator
Bernardoow Oct 21, 2026
0c5c86c
python needs to python = >=3.11,<3.15
Bernardoow Oct 21, 2026
15cb94b
fix generator language version
Bernardoow Oct 21, 2026
568d5ef
improve setup python version
Bernardoow Oct 21, 2026
60f8fd6
fix travis.yml
Bernardoow Oct 21, 2026
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2 changes: 1 addition & 1 deletion docs/generators/python-pydantic-v1.md
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Expand Up @@ -10,7 +10,7 @@ title: Documentation for the python-pydantic-v1 Generator
| generator stability | STABLE | |
| generator type | CLIENT | |
| generator language | Python | |
| generator language version | 3.7+ | |
| generator language version | >=3.11,<3.15 | |
| generator default templating engine | mustache | |
| helpTxt | Generates a Python client library. | |

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2 changes: 1 addition & 1 deletion ...rator/src/main/java/org/openapitools/codegen/languages/PythonPydanticV1ClientCodegen.java
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Expand Up @@ -440,7 +440,7 @@ public String generatePackageName(String packageName) {

@Override
public String generatorLanguageVersion() {
return "3.7+";
return ">=3.11,<3.15";
}

@Override
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2 changes: 1 addition & 1 deletion modules/openapi-generator/src/main/resources/python-pydantic-v1/github-workflow.mustache
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Expand Up @@ -14,7 +14,7 @@ jobs:
runs-on: ubuntu-latest
strategy:
matrix:
python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
python-version: ["3.11", "3.12", "3.13", "3.14"]

@wing328 wing328 Oct 21, 2026

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The last supported Python version is 3.13. Pydantic V1 does not work on Python 3.14 and greater.

ref: https://pydantic.dev/docs/validation/1.10/overview/

shall we exclude 3.14 in this change?

@Bernardoow Bernardoow Oct 21, 2026

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No, I was thinking that since Pydantic v1 supports Python 3.14, we should support it too.

However, Python 3.15 is not supported.

See: pydantic/pydantic#13173 (comment)

Also, Pydantic v1.10.26 is the latest release that supports Python 3.14:

https://github.com/pydantic/pydantic/blob/v1.10.26/pyproject.toml#L24


steps:
- uses: actions/checkout@v4
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19 changes: 8 additions & 11 deletions modules/openapi-generator/src/main/resources/python-pydantic-v1/gitlab-ci.mustache
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Expand Up @@ -14,18 +14,15 @@ stages:
- pip install -r test-requirements.txt
- pytest --cov={{{packageName}}}

pytest-3.7:
pytest-3.11:
extends: .pytest
image: python:3.7-alpine
pytest-3.8:
image: python:3.11-alpine
pytest-3.12:
extends: .pytest
image: python:3.8-alpine
pytest-3.9:
image: python:3.12-alpine
pytest-3.13:
extends: .pytest
image: python:3.9-alpine
pytest-3.10:
image: python:3.13-alpine
pytest-3.14:
extends: .pytest
image: python:3.10-alpine
pytest-3.11:
extends: .pytest
image: python:3.11-alpine
image: python:3.14-alpine
2 changes: 1 addition & 1 deletion modules/openapi-generator/src/main/resources/python-pydantic-v1/pyproject.mustache
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Expand Up @@ -10,7 +10,7 @@ keywords = ["OpenAPI", "OpenAPI-Generator", "{{{appName}}}"]
include = ["{{packageName}}/py.typed"]

[tool.poetry.dependencies]
python = "^3.8"
python = ">=3.11,<3.15"

urllib3 = ">= 1.26.0"
python-dateutil = ">=2.8.2"
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2 changes: 1 addition & 1 deletion modules/openapi-generator/src/main/resources/python-pydantic-v1/setup.mustache
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Expand Up @@ -13,7 +13,7 @@ from setuptools import setup, find_packages # noqa: H301
# http://pypi.python.org/pypi/setuptools
NAME = "{{{projectName}}}"
VERSION = "{{packageVersion}}"
PYTHON_REQUIRES = ">=3.7"
PYTHON_REQUIRES = ">=3.14,<3.15"
{{#apiInfo}}
{{#apis}}
{{#-last}}
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9 changes: 4 additions & 5 deletions modules/openapi-generator/src/main/resources/python-pydantic-v1/travis.mustache
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@@ -1,13 +1,12 @@
# ref: https://docs.travis-ci.com/user/languages/python
language: python
python:
- "3.7"
- "3.8"
- "3.9"
- "3.10"
- "3.11"
- "3.12"
- "3.13"
- "3.14"
# uncomment the following if needed
#- "3.11-dev" # 3.11 development branch
#- "3.14-dev" # 3.14 development branch
#- "nightly" # nightly build
# command to install dependencies
install:
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2 changes: 1 addition & 1 deletion samples/client/echo_api/python-pydantic-v1/.github/workflows/python.yml
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Expand Up @@ -13,7 +13,7 @@ jobs:
runs-on: ubuntu-latest
strategy:
matrix:
python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
python-version: ["3.11", "3.12", "3.13", "3.14"]

@cubic-dev-ai cubic-dev-ai Bot Oct 21, 2026

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P1: This matrix now runs the pydantic-v1 client on Python 3.14, but the repository’s pydantic-v1 integration workflow explicitly excludes 3.14. Remove 3.14 here until the pydantic-v1 dependency is compatible, otherwise every run of this generated workflow adds a known failing job.

Prompt for AI agents 
Check if this issue is valid — if so, understand the root cause and fix it. When an issue isn't valid or won't be fixed in this PR, reply in its thread with the reason and then resolve the thread. At samples/client/echo_api/python-pydantic-v1/.github/workflows/python.yml, line 16:

<comment>This matrix now runs the pydantic-v1 client on Python 3.14, but the repository’s pydantic-v1 integration workflow explicitly excludes 3.14. Remove 3.14 here until the pydantic-v1 dependency is compatible, otherwise every run of this generated workflow adds a known failing job.</comment>

<file context>
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.11", "3.12", "3.13", "3.14"]
 
     steps:
</file context>
Suggested change
python-version: ["3.11", "3.12", "3.13", "3.14"]
python-version: ["3.11", "3.12", "3.13"]

@Bernardoow Bernardoow Oct 21, 2026 •
edited
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This is an issue with the workflow, which currently excludes Python 3.14.

As I mentioned in this comment I think we should support Pydantic v1 on Python 3.14.


steps:
- uses: actions/checkout@v4
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19 changes: 8 additions & 11 deletions samples/client/echo_api/python-pydantic-v1/.gitlab-ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -14,18 +14,15 @@ stages:
- pip install -r test-requirements.txt
- pytest --cov=openapi_client

pytest-3.7:
pytest-3.11:
extends: .pytest
image: python:3.7-alpine
pytest-3.8:
image: python:3.11-alpine
pytest-3.12:
extends: .pytest
image: python:3.8-alpine
pytest-3.9:
image: python:3.12-alpine
pytest-3.13:
extends: .pytest
image: python:3.9-alpine
pytest-3.10:
image: python:3.13-alpine
pytest-3.14:
extends: .pytest
image: python:3.10-alpine
pytest-3.11:
extends: .pytest
image: python:3.11-alpine
image: python:3.14-alpine
9 changes: 4 additions & 5 deletions samples/client/echo_api/python-pydantic-v1/.travis.yml
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Original file line number Diff line number Diff line change
@@ -1,13 +1,12 @@
# ref: https://docs.travis-ci.com/user/languages/python
language: python
python:
- "3.7"
- "3.8"
- "3.9"
- "3.10"
- "3.11"
- "3.12"
- "3.13"
- "3.14"
# uncomment the following if needed
#- "3.11-dev" # 3.11 development branch
#- "3.14-dev" # 3.14 development branch
#- "nightly" # nightly build
# command to install dependencies
install:
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2 changes: 1 addition & 1 deletion samples/client/echo_api/python-pydantic-v1/README.md
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Expand Up @@ -10,7 +10,7 @@ This Python package is automatically generated by the [OpenAPI Generator](https:

## Requirements.

Python 3.7+
Python >=3.11,<3.15

## Installation & Usage
### pip install
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2 changes: 1 addition & 1 deletion samples/client/echo_api/python-pydantic-v1/pyproject.toml
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Expand Up @@ -10,7 +10,7 @@ keywords = ["OpenAPI", "OpenAPI-Generator", "Echo Server API"]
include = ["openapi_client/py.typed"]

[tool.poetry.dependencies]
python = "^3.8"
python = ">=3.11,<3.15"

urllib3 = ">= 1.26.0"
python-dateutil = ">=2.8.2"
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2 changes: 1 addition & 1 deletion samples/client/echo_api/python-pydantic-v1/setup.py
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Expand Up @@ -23,7 +23,7 @@
# http://pypi.python.org/pypi/setuptools
NAME = "openapi-client"
VERSION = "1.0.0"
PYTHON_REQUIRES = ">=3.7"
PYTHON_REQUIRES = ">=3.14,<3.15"
REQUIRES = [
"urllib3 >= 1.26.0, < 3.0.0",
"python-dateutil",
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2 changes: 1 addition & 1 deletion samples/openapi3/client/petstore/python-pydantic-v1-aiohttp/.github/workflows/python.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ jobs:
runs-on: ubuntu-latest
strategy:
matrix:
python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
python-version: ["3.11", "3.12", "3.13", "3.14"]

steps:
- uses: actions/checkout@v4
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19 changes: 8 additions & 11 deletions samples/openapi3/client/petstore/python-pydantic-v1-aiohttp/.gitlab-ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -14,18 +14,15 @@ stages:
- pip install -r test-requirements.txt
- pytest --cov=petstore_api

pytest-3.7:
pytest-3.11:
extends: .pytest
image: python:3.7-alpine
pytest-3.8:
image: python:3.11-alpine
pytest-3.12:
extends: .pytest
image: python:3.8-alpine
pytest-3.9:
image: python:3.12-alpine
pytest-3.13:
extends: .pytest
image: python:3.9-alpine
pytest-3.10:
image: python:3.13-alpine
pytest-3.14:
extends: .pytest
image: python:3.10-alpine
pytest-3.11:
extends: .pytest
image: python:3.11-alpine
image: python:3.14-alpine
9 changes: 4 additions & 5 deletions samples/openapi3/client/petstore/python-pydantic-v1-aiohttp/.travis.yml
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@@ -1,13 +1,12 @@
# ref: https://docs.travis-ci.com/user/languages/python
language: python
python:
- "3.7"
- "3.8"
- "3.9"
- "3.10"
- "3.11"
- "3.12"
- "3.13"
- "3.14"
Comment thread
cubic-dev-ai[bot] marked this conversation as resolved.
# uncomment the following if needed
#- "3.11-dev" # 3.11 development branch
#- "3.14-dev" # 3.14 development branch
#- "nightly" # nightly build
# command to install dependencies
install:
Expand Down
2 changes: 1 addition & 1 deletion samples/openapi3/client/petstore/python-pydantic-v1-aiohttp/README.md
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Expand Up @@ -10,7 +10,7 @@ This Python package is automatically generated by the [OpenAPI Generator](https:

## Requirements.

Python 3.7+
Python >=3.11,<3.15

## Installation & Usage
### pip install
Expand Down
2 changes: 1 addition & 1 deletion samples/openapi3/client/petstore/python-pydantic-v1-aiohttp/pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ keywords = ["OpenAPI", "OpenAPI-Generator", "OpenAPI Petstore"]
include = ["petstore_api/py.typed"]

[tool.poetry.dependencies]
python = "^3.8"
python = ">=3.11,<3.15"

urllib3 = ">= 1.26.0"
python-dateutil = ">=2.8.2"
Expand Down
2 changes: 1 addition & 1 deletion samples/openapi3/client/petstore/python-pydantic-v1-aiohttp/setup.py
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Expand Up @@ -22,7 +22,7 @@
# http://pypi.python.org/pypi/setuptools
NAME = "petstore-api"
VERSION = "1.0.0"
PYTHON_REQUIRES = ">=3.7"
PYTHON_REQUIRES = ">=3.14,<3.15"
REQUIRES = [
"urllib3 >= 1.26.0, < 3.0.0",
"python-dateutil",
Expand Down
2 changes: 1 addition & 1 deletion samples/openapi3/client/petstore/python-pydantic-v1/.github/workflows/python.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ jobs:
runs-on: ubuntu-latest
strategy:
matrix:
python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
python-version: ["3.11", "3.12", "3.13", "3.14"]

steps:
- uses: actions/checkout@v4
Expand Down
19 changes: 8 additions & 11 deletions samples/openapi3/client/petstore/python-pydantic-v1/.gitlab-ci.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,18 +14,15 @@ stages:
- pip install -r test-requirements.txt
- pytest --cov=petstore_api

pytest-3.7:
pytest-3.11:
extends: .pytest
image: python:3.7-alpine
pytest-3.8:
image: python:3.11-alpine
pytest-3.12:
extends: .pytest
image: python:3.8-alpine
pytest-3.9:
image: python:3.12-alpine
pytest-3.13:
extends: .pytest
image: python:3.9-alpine
pytest-3.10:
image: python:3.13-alpine
pytest-3.14:
extends: .pytest
image: python:3.10-alpine
pytest-3.11:
extends: .pytest
image: python:3.11-alpine
image: python:3.14-alpine
9 changes: 4 additions & 5 deletions samples/openapi3/client/petstore/python-pydantic-v1/.travis.yml
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Original file line number Diff line number Diff line change
@@ -1,13 +1,12 @@
# ref: https://docs.travis-ci.com/user/languages/python
language: python
python:
- "3.7"
- "3.8"
- "3.9"
- "3.10"
- "3.11"
- "3.12"
- "3.13"
- "3.14"
# uncomment the following if needed
#- "3.11-dev" # 3.11 development branch
#- "3.14-dev" # 3.14 development branch
#- "nightly" # nightly build
# command to install dependencies
install:
Expand Down
2 changes: 1 addition & 1 deletion samples/openapi3/client/petstore/python-pydantic-v1/README.md
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ This Python package is automatically generated by the [OpenAPI Generator](https:

## Requirements.

Python 3.7+
Python >=3.11,<3.15

## Installation & Usage
### pip install
Expand Down
2 changes: 1 addition & 1 deletion samples/openapi3/client/petstore/python-pydantic-v1/pyproject.toml
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ keywords = ["OpenAPI", "OpenAPI-Generator", "OpenAPI Petstore"]
include = ["petstore_api/py.typed"]

[tool.poetry.dependencies]
python = "^3.8"
python = ">=3.11,<3.15"

urllib3 = ">= 1.26.0"
python-dateutil = ">=2.8.2"
Expand Down
2 changes: 1 addition & 1 deletion samples/openapi3/client/petstore/python-pydantic-v1/setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@
# http://pypi.python.org/pypi/setuptools
NAME = "petstore-api"
VERSION = "1.0.0"
PYTHON_REQUIRES = ">=3.7"
PYTHON_REQUIRES = ">=3.14,<3.15"
REQUIRES = [
"urllib3 >= 1.26.0, < 3.0.0",
"python-dateutil",
Expand Down
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