TypeError when running Spyder on Fedora

[Krysztof]

Hello everyone,

I'm new to all this, I have used Spyder in the past and I'm trying to install it again on Fedora now. I find Anaconda a bit confusing, so I'm trying to install it via pip but it gives me an error when running it. The error is this

File "/usr/local/bin/spyder", line 8, in <module> sys.exit(main()) File "/usr/local/lib/python3.10/site-packages/spyder/app/start.py", line 232, in main from spyder.app import mainwindow File "/usr/local/lib/python3.10/site-packages/spyder/app/mainwindow.py", line 41, in <module> requirements.check_qt() File "/usr/local/lib/python3.10/site-packages/spyder/requirements.py", line 47, in check_qt if parse_version(actual_ver) < parse_version(required_ver): File "/usr/lib/python3.10/site-packages/pkg_resources/init.py", line 114, in parse_version return packaging.version.Version(v) File "/usr/lib/python3.10/site-packages/pkg_resources/_vendor/packaging/version.py", line 275, in init match = self._regex.search(version) TypeError: expected string or bytes-like object

Any idea what this is? On another laptop running Fedora with everything updated, I just ran sudo pip install spyder and it works fine, latest version too. What might be wrong? Sorry if this is too noobish a question and thanks in advance.

[Carlos Córdoba]

Hi,

Unfortunately, you're installing Spyder the wrong way by running

    sudo pip install spyder

That mixes packages from PyPI with the ones provided by Fedora, which are compiled differently and usually are incompatible among themselves (it doesn't matter that in your other laptop you were lucky and didn't have any errors).

So, please remove all packages you installed with pip (not only Spyder, but each one), and if possible, all files and directories under

    /usr/local/lib/python3.10

Instead, please create a virtualenv (there are multiple methods to do that, so you need to google for it) and install Spyder on it.

Also, as a cautionary note, Spyder is not ready for Python 3.10 yet (it has some minor bugs that will be fixed in our next version), so you need to use a Python 3.9 virtualenv for it.


Cheers,
Carlos

El 23/01/22 a las 10:32 a. m., Krysztof escribió:

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[Krysztof]

Well crap! I just followed the official Fedora documentation, although I suppose it's pretty old, but I thought pip would take care of the dependencies. I'm just afraid of uninstalling everything now in case I mess up Python on my system. Should I just run

sudo pip uninstall spyder

and then also

sudo rm -r /usr/local/lib/python3.10

or would that also remove other things it should not? And also, since it somehow works, is it not okay to just leave it as is, or is it bound to have problems? Thanks for the reply.