[python-fastapi] Change License Name to Unlicense

[Varshni-twks]

When generating with openapi generator for python, I am getting license to be Nolicense, which is not getting accepted by uv package manager. how to change it to valid SPDX license type like "Unlicense"?

[maruoss]

I see its fixed and will be released for version 7.15.0. For now, should we fix the package to 7.13.0?

[MaxVanDijck]

We are also getting this error with 7.14.0, we upgraded from 7.12.0 due to this other issue with urllib3.
We have downgraded all the way down to 7.6.0 as a temporary fix.

[Varshni-twks]

@MaxVanDijck As a temporary fix, I added a python script to change the license name to Unlicense post generation of the package .

import re
from pathlib import Path


def fix_license_in_pyproject():
    """Fix the license field in the generated pyproject.toml"""
    pyproject_path = Path("path to pyproject.toml file")

    if not pyproject_path.exists():
        print("pyproject.toml not found")
        return

    # Read the file
    with open(pyproject_path, "r") as f:
        content = f.read()

    # Replace the license field with a custom one
    # This regex matches the license line and replaces it
    pattern = r'license = ".*?"'
    replacement = 'license = "Unlicense"'

    new_content = re.sub(pattern, replacement, content)

    # Write back
    with open(pyproject_path, "w") as f:
        f.write(new_content)

[wing328]

#21471 has been merged

can you guys please give it a try with the latest master?

[staticdev]

@wing328 I just did a test today latest docker image from OpenAPITools/openapi-generator.
I try to poetry build the generated project and get an error project.license must be valid excactly by one definition (0 matches found).

I see the generated license has format:
license = "NoLicense"

I didn't find NoLicense in possible SPDX values: https://spdx.org/licenses/

I think the solution is use Unlicense as suggested. Created a PR for it, I tested locally and it works!

[jthigpen]

@wing328 @staticdev Was the change of the default license to a very permissive open source license intentional?

It was mentioned in #21471 that Unlicense is not the same intent as NoLicense was.

Unlicense is a "a very permissive license that allows any use". See: https://spdx.org/licenses/Unlicense.html

Also the referenced PR has a link to https://opensource.stackexchange.com/questions/12410/is-there-a-difference-between-unlicense-org-and-spdx-unlicensed/12412#12412 with further discussion.