not compatible with upcoming `invoke` release

[apteryks]

Hi,

After finding a serious problem with the latest release of invoke (2.2.1): pyinvoke/invoke#1054, I had to package the unreleased git tree.

EDIT: The issue was not in invoke; the latest 2.2.1 release is fine. The rest of this issue still holds for a future release.

There seems to be a small incompatibility with rellu, which is found when running its test suite:

============================= test session starts ==============================
platform linux -- Python 3.11.11, pytest-8.4.1, pluggy-1.6.0 -- /gnu/store/v76lvm9985mj5h3kwrkif7gnqv3q30ck-python-wrapper-3.11.11/bin/python
cachedir: .pytest_cache
hypothesis profile 'default'
rootdir: /tmp/guix-build-python-rellu-0.7.drv-0/source
plugins: hypothesis-6.135.26
collecting ... collected 0 items / 1 error

==================================== ERRORS ====================================
____________________ ERROR collecting utest/test_version.py ____________________
ImportError while importing test module '/tmp/guix-build-python-rellu-0.7.drv-0/source/utest/test_version.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/gnu/store/lawd7nyacmw4f5as1mlzv2zigjwm03y5-python-rellu-0.7/lib/python3.11/site-packages/rellu/__init__.py:36: in <module>
    from invoke import __version_info__ as invoke_version
E   ImportError: cannot import name '__version_info__' from 'invoke' (/gnu/store/vkqlzpr6vd4hh0lvkj8im3b3d7s6mjih-python-invoke-2.2.1-0.ba193d1/lib/python3.11/site-packages/invoke/__init__.py)

During handling of the above exception, another exception occurred:
/gnu/store/f3sc2n63n727bysn4040gsk5gsh2502w-python-pytest-8.4.1/lib/python3.11/site-packages/_pytest/python.py:498: in importtestmodule
    mod = import_path(
/gnu/store/f3sc2n63n727bysn4040gsk5gsh2502w-python-pytest-8.4.1/lib/python3.11/site-packages/_pytest/pathlib.py:587: in import_path
    importlib.import_module(module_name)
/gnu/store/1qmk0ip6gvjs9i9pwj74n4yddqcl45rg-python-3.11.11/lib/python3.11/importlib/__init__.py:126: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
<frozen importlib._bootstrap>:1204: in _gcd_import
    ???
<frozen importlib._bootstrap>:1176: in _find_and_load
    ???
<frozen importlib._bootstrap>:1147: in _find_and_load_unlocked
    ???
<frozen importlib._bootstrap>:690: in _load_unlocked
    ???
/gnu/store/f3sc2n63n727bysn4040gsk5gsh2502w-python-pytest-8.4.1/lib/python3.11/site-packages/_pytest/assertion/rewrite.py:186: in exec_module
    exec(co, module.__dict__)
utest/test_version.py:5: in <module>
    from rellu.version import Version
/gnu/store/lawd7nyacmw4f5as1mlzv2zigjwm03y5-python-rellu-0.7/lib/python3.11/site-packages/rellu/__init__.py:41: in <module>
    raise ImportError('invoke 0.20 or newer required.')
E   ImportError: invoke 0.20 or newer required.
=========================== short test summary info ============================
ERROR utest/test_version.py
!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
=============================== 1 error in 0.33s ===============================

[apteryks]

Looks like it should now use just __version__, not __version_info__.

[aaltat]

This is caused if your minimum version does not meet invoke 0.20. What version of invoke you have installed?

[aaltat]

ah now I see your point. I will look your PR.