Wrong Python version in PyCharm's inspections

Question

Project Interpreter in PyCharm's settings for the project "Python 3.6 C:\Anaconda\python.exe"

But in my code I get inspections like "Python version 3.5 does not support a 'F' prefix"

There is no Python3.5 on my system anywhere, I tried to resolve this doing the following:

removed the interpreter in pycharm settings, then added it back
uninstalled all other python versions, deleted their entries from windows registry etc
updated anaconda / conda etc

nothing is working. And anyway why does PyCharm show that the python version is 3.6 when I select it as the project interpreter, but that it is 3.5 in inspections?

@IonFreeman The OP accepted my answer below meaning that this is how the issue got solved. — Eskapp, May 22 '18 at 15:14
I had to rebuild the project interpreter, which I did at the direction of JetBrains support. — Ion Freeman, May 25 '18 at 22:28
@bvmcode It did work for me. The inspections setting was already correct.Odd — Chris Huang-Leaver, Mar 21 '19 at 01:22

score 76 · Accepted Answer · answered Apr 13 '18 at 16:35

76

Go to Settings->Editor->Inspections. There in Python->Code compatibility inspections, you should see that Python 3.5's box is ticked in.

This allows you to choose for which versions of Python your code will be inspected.

answered Apr 13 '18 at 16:35

Eskapp

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I started getting this error after I created a Jupyter notebook to test my flask API, and let PyCharm install Jupyter. I'm on macos, so I went to PyCharm/Preferences/Editor/Inspections/Python -- Code Compatibility was not checked. I checked it and it actually had 3.7 checked (as of this writing Python 3.7.0b4 is in pre-release.) I did invalidate caches and restart as well. – Ion Freeman May 22 '18 at 12:44
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It seems that, unintuitively, 'code compatibility inspection' needs to be checked and the Python versions you don't care about need to be unchecked. https://stackoverflow.com/questions/38588970/python3-syntax-in-pycharm#comment64566081_38589030 – Joshua Chia Nov 06 '18 at 09:16
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This issue can also crop up if you disable all Python inspections in Settings by un-ticking the Python language group and then re-enable them later. – DaveL17 Dec 19 '22 at 01:28

score 7 · Answer 2 · edited Oct 29 '19 at 00:34

I totally agree with @Eskapp's answer, but here are a few additions that I had to do.

Press Ctrl + Alt + S OR Command + Option + S To open the Settings
Settings > Editor > Inspections > Python | Code compatibility inspection > Select the version(s) (In my case 3.7 and 3.8 and disselcting 2.7)
Settings > Project: | Project Interpreter > Make sure correct version and interpreter is selected.
File > Invalidate Caches / Restart...
Done.

score 1 · Answer 3 · answered Apr 27 '21 at 06:10

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Looks like you have Code Compatibility Inspection enabled. Please check the attached screenshot:

answered Apr 27 '21 at 06:10

Muhammad Abdullah

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score 0 · Answer 4 · answered Jan 03 '20 at 23:03

I often run into this issue due to symlinks. PyCharm apparently caches the interpreter version somewhere internally when you add a new Project interpreter. If that happens to be a symlink, and you later change the symlink to point to another path/interpreter, PyCharm will still think it's the old interpreter. In order to make it check the interpreter version again I need to go to that project interpreter and edit it - e.g. change the path to something else, and then back. It forces PyCharm to re-validate the interpreter and update cached version.

Wrong Python version in PyCharm's inspections

4 Answers4

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