backspace and line-wrapping acting strange on Linux

[yorickvP]

When running any app using click.prompt on linux, something weird happens with backspace.

Recording

This screen recording shows 2 letters being removed when I hit backspace once, and the prompt being deleted when I backspace the entire line.

(asciinema link)

The returned input is also different from the text shown on screen.

Environment:

• Python version: 3.13.3
• Click version: 8.2.1

Cause:

termui contains a workaround for windows where it prints a readline prompt itself. On linux, this confuses readline so things like backspace/ctrl-backspace and line wrapping don't work correctly.

This can be fixed by letting readline handling the prompt on linux: #2969

[Rowlando13]

Please include the full context on the issue.

[yorickvP]

I updated the description to include a cause from the PR.

(Looks like the asciinema demo is currently down, if it's still down tomorrow I'll upload it somewhere else.)

[Rowlando13]

Thanks for the update. I still need you to include the full context even if it's screenshots. That site being down is an example of why we require it.

[yorickvP]

Updated with an inline gif showing the bug.

[kdeldycke]

A fix has been pushed to main branch and will be part of the 8.4.0 release. Feel free to test it and report any regression. :)