python / python/cpython

REPL feature: Re-print prompt when resumed

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#155,432 5 comments 2 reactions 0 assignees View on GitHub

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stdlib topic-repl type-feature
Dominant language
Python
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Forks
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PR merge metrics
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Description

Feature or enhancement

Proposal:

Currently, the Python REPL does not re-print the prompt after it is resumed after being suspended after the SUSP character is typed on the terminal.
The Python process needs to add a handler for the SIGCONT signal that re-prints the prompt.
Otherwise, a resumed Python REPL process looks broken:

Image
Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs
  • gh-155662

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the Python REPL entry point and inspect how terminal suspension and signals are handled, focusing on SIGCONT. Reproduce the issue by suspending and resuming an interactive REPL, then verify that the prompt is re-printed after resume. The issue links PR gh-155662, so check that work before starting.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
cli, operating-systems
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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