pdb -p: `list` command output contains trailing ^J markers

[ambv]

Bug report

Bug description:

Actual:

Expected:

CPython versions tested on:

CPython main branch

Operating systems tested on:

macOS

Linked PRs

• gh-154470: Fix spurious ^J in pdb's colorized list command #154473
• [3.15] gh-154470: Fix spurious ^J in pdb's colorized list command (GH-154473) #157536

[ByteFlowing1337]

Duplicate of #153902?

[saucoide]

not just pdb -p it happens on plain pdb as well btw

[asottile]

throwing it out there -- this maybe should be a 3.15 release blocker ?

[johnslavik]

Yes, this is bad. It indeed happens locally as well.