Can't install with python 3.10

[richardclegg]

I can't seem to get the pip install to work with python 3.10.6 and pip 22.3.1

pip install requests pemja

Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: requests in /usr/lib/python3/dist-packages (2.25.1)
Collecting pemja
Using cached pemja-0.2.6.tar.gz (48 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [24 lines of output]
setup.py:34: RuntimeWarning: Pemja may not yet support Python 3.10.
warnings.warn(
Traceback (most recent call last):
File "/home/richard/.local/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 351, in
main()
File "/home/richard/.local/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 333, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
File "/home/richard/.local/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 118, in get_requires_for_build_wheel
return hook(config_settings)
File "/tmp/pip-build-env-gt1_4mbr/overlay/local/lib/python3.10/dist-packages/setuptools/build_meta.py", line 162, in get_requires_for_build_wheel
return self._get_build_requires(
File "/tmp/pip-build-env-gt1_4mbr/overlay/local/lib/python3.10/dist-packages/setuptools/build_meta.py", line 143, in _get_build_requires
self.run_setup()
File "/tmp/pip-build-env-gt1_4mbr/overlay/local/lib/python3.10/dist-packages/setuptools/build_meta.py", line 267, in run_setup
super(_BuildMetaLegacyBackend,
File "/tmp/pip-build-env-gt1_4mbr/overlay/local/lib/python3.10/dist-packages/setuptools/build_meta.py", line 158, in run_setup
exec(compile(code, file, 'exec'), locals())
File "setup.py", line 184, in
include_dirs=get_java_include() + ['src/main/c/pemja/core/include'] + get_numpy_include(),
File "setup.py", line 111, in get_java_include
inc = os.path.join(get_java_home(), inc_name)
File "/usr/lib/python3.10/posixpath.py", line 76, in join
a = os.fspath(a)
TypeError: expected str, bytes or os.PathLike object, not NoneType

When building from scratch I get:

python setup.py sdist
/home/richard/src/pemja/setup.py:23: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives
from distutils.command.build_ext import build_ext as old_build_ext
/home/richard/src/pemja/setup.py:34: RuntimeWarning: Pemja may not yet support Python 3.10.
warnings.warn(
Traceback (most recent call last):
File "/home/richard/src/pemja/setup.py", line 184, in
include_dirs=get_java_include() + ['src/main/c/pemja/core/include'] + get_numpy_include(),
File "/home/richard/src/pemja/setup.py", line 111, in get_java_include
inc = os.path.join(get_java_home(), inc_name)
File "/usr/lib/python3.10/posixpath.py", line 76, in join
a = os.fspath(a)
TypeError: expected str, bytes or os.PathLike object, not NoneType

[richardclegg]

This error comes from JAVA_HOME variable not being set.

[HuangXingBo]

Pemja has supportted windows 3.10 wheel packages from 0.3.0 version

[richardclegg]

OK -- to be 100% clear. The issue is that on Ubuntu Linux pemja install fails with an error about 3.10 if you haven't set the JAVA_HOME environment variable. It should be quite easy to create a more helpful error message. It took me an hour or so to work out what the problem was. Other people might simply give up. There's an obvious few line fix.