Can't install pyside2 on Python 3.9

[Markus Igeland]

Hi,

I just attempted to install (pipenv install --python 3) on my PC running Fedora 3.4. This did not work, and I was given the following output:

$ pipenv install --python 3
Creating a virtualenv for this project...
Pipfile: /home/markus/The-Witcher-3-Mod-manager/Pipfile
Using /usr/bin/python3.9 (3.9.7) to create virtualenv...
⠦ Creating virtual environment...created virtual environment CPython3.9.7.final.0-64 in 419ms
  creator CPython3Posix(dest=/home/markus/.local/share/virtualenvs/The-Witcher-3-Mod-manager-hVOQ4ZBA, clear=False, no_vcs_ignore=False, global=False)
  seeder FromAppData(extra_search_dir=/usr/share/python-wheels,download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=/home/markus/.local/share/virtualenv)
    added seed packages: pip==21.0.1, setuptools==53.0.0, wheel==0.36.2
  activators BashActivator,CShellActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator

✔ Successfully created virtual environment! 
Virtualenv location: /home/markus/.local/share/virtualenvs/The-Witcher-3-Mod-manager-hVOQ4ZBA
Installing dependencies from Pipfile.lock (d86da0)...
An error occurred while installing pyside2==5.14.2.3 --hash=sha256:9c756537f5fb6652854a28a4536da1b6ef321cbceb739cf005e768613914cd19 --hash=sha256:738b9e73f82949f8c3a77349fd70f57e4d2f36e8912d7f6e4c78ae23af338e5a --hash=sha256:fe9d4b405ee9cfe14cb79387dea42a1985e1e2b958d6ef8870388093ad928d09 --hash=sha256:28d0ebd973c62042925474f3d889b8819cdbda0261a317a97354bd0f89479c4a --hash=sha256:1b9ee82f72f672395eefd11493322ac890333ee658a732cb637c47fb3821d504 --hash=sha256:f673f8696dbf9cbcbf5eac586411a58c762c40b3645937081d97ffc9f8b46e30! Will try again.
Ignoring shiboken2: markers 'python_version >= "2.7" and python_version not in "3.0, 3.1, 3.2, 3.3, 3.4" and python_version < "3.9"' don't match your environment
  🐍   ▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉ 10/10 — 00:00:05
Installing initially failed dependencies...
[pipenv.exceptions.InstallError]: ERROR: Could not find a version that satisfies the requirement pyside2==5.14.2.3
[pipenv.exceptions.InstallError]: ERROR: No matching distribution found for pyside2==5.14.2.3
ERROR: Couldn't install package: pyside2
 Package installation failed...
  ☤  ▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉ 0/1 — 00:00:00

This error message suggests a mismatch of python versions:

Ignoring shiboken2: markers 'python_version >= "2.7" and python_version not in "3.0, 3.1, 3.2, 3.3, 3.4" and python_version < "3.9"' don't match your environment

This suggests that the only supported python versions are 3.5, 3.6, 3.7, and 3.8.

My default python (both python and python3) version is 3.9:

$ python --version
Python 3.9.7
$ python3 --version
Python 3.9.7

We should probably be more specific about which version of python to use in the pipenv command. For example 3.8? pipenv install --python 3.8.

However, it would probably also require adding a notice about which python version should be installed on the system, as well, and maybe some helpful tips on how to do so on different systems.

[Chris]

I've replaced the deprecated cchardet with charset-normalizer and upgraded PySide2 to the latest version; Installing the dependencies with Python versions <=3.10 should work now.