Any workaround around old libraries ? "command: use_2to3 is invalid"

[liran-cohen-hs]

As part of the migration to PDM, we are handling some legacy projects and libraries
one example is suds-jurko
when trying to run pdm add suds-jurko it fails with this error:

pdm.exceptions.BuildError: Build backend raised error: Showing the last 10 lines of the build output:
error in suds-jurko setup command: use_2to3 is invalid.

I tried all the different build backends listed in this page

I guess it's a matter of using old setuptools

any workaround of making it work ? (other than the obvious thing we should do and upgrade this library to something newer :))

Thanks !

[frostming]

It is because the use_2to3 functionality is no longer supported since setuptools==58.

You can workaround this with following:

pdm add "setuptools<58"
pdm add --no-isolation suds-jurko

--no-isolation will reuse the libraries already installed in the project environment(in this case setuptools), instead of creating an isolated environment and install build requirements from empty.

I can confirm it works with Python 3.11

[liran-cohen-hs]

Thanks
seems to be working :)