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Restarting Python Shell not working with pyenv

asked 2022-11-03 21:37:46 -0500

PeterWolf's avatar

updated 2022-11-04 07:56:11 -0500


I am trying to use pyenv with WingIDE Pro 7. I've used

import sys

and get the python executable path as


Then, I open the Project Properties dialog window and chose [Command Line] to put the executable python path in it.

After resting the Python Shell tab from [Options], it still gives me this message:

Cannot execute: use Options -> restart Shell to launch shell [Needs restart for Python env]

I've repeated the steps many times, but still cannot get my Python Shell working under WingIDE.

Please kindly advise what I can do. Many many thanks in advance. :)

-- Peter. w

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Could you please try setting the Debugger > Diagnostics > Python Shell Debug Log preference, restarting the Python Shell from its Options menu, and sending the log to Please don't set the Extremely Verbose option, though.

Wingware Support's avatar Wingware Support  ( 2022-11-04 09:01:44 -0500 )edit

I managed to replicate this here. Will add an answer...

Wingware Support's avatar Wingware Support  ( 2022-11-04 10:55:47 -0500 )edit

Also, the diagnostic log is not produced because the crash is early in Python's startup. So no need to try to obtain that.

Wingware Support's avatar Wingware Support  ( 2022-11-04 11:04:22 -0500 )edit

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answered 2022-11-05 05:46:31 -0500

PeterWolf's avatar

Hello, thanks for the test and reply.

I've managed to figured out a solution. I installed the Python 3.6.15, in my case, using clang:

$ sudo apt install clang -y
$ CC=clang pyenv install 3.6.15

Then everything works fine now.

We are planning to migrate to Python 3.9 or Python3.11 in 2023, and we are evaluating WingIDE 9. Meanwhile, there are dozens of website built under Python3.6.

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Great, thanks for figuring this out and posting the solution!

Wingware Support's avatar Wingware Support  ( 2022-11-05 10:08:17 -0500 )edit

answered 2022-11-04 11:00:16 -0500

It looks like Python 3.6.15 as installed by pyenv segfaults randomly. It also crashes on the command line for me if I try to create a virtualenv. I'm not sure of the reason for this, but I'd recommend just using a newer version of Python. I didn't run into any problems with Python 3.11.0.

My environment when testing this was: Ubuntu 22.04, pyenv 2.3.6 installed from, Wing

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Asked: 2022-11-03 21:37:46 -0500

Seen: 128 times

Last updated: Nov 05 '22