Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

Format specifiers in f-strings don't highlight the entire thing in a consistent manner

Open
#181 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
tooling

Research direction

Start by reproducing the two f-string examples in Sublime Text 3.2.1 with MagicPython 1.1.1 and inspect their syntax scopes, comparing them with the regular {test:.2f} example. Done means format specifiers in the reported cases receive a consistent scope, or the behavior is documented as intentional.

Written by the indexing model from the issue text.

Description

Hello. Sometimes the :... aspect of a format string is highlighted in its entirety but often times it's not. I would like to know if it's possible to make it so it's all under the same consistent scope or if it's by design that it doesn't. My main use case has to do with types using a custom __format__.

For example:


I would have imagined both of these to fall under the same scope but they're not.

The first screenshot goes source.python > meta.fstring.python > storage.type.format.python
The second screenshot goes source.python > meta.function-call.python > meta.function-call.arguments.python > meta.fstring.python

A regular line of code without using custom __format__ (e.g. {test:.2f}) goes as source.python > meta.function-call.python > meta.function-call.arguments.python > meta.fstring.python > storage.type.format.python which is what I would expect the other two to return as well, unless it's meant to be treated differently.

  • Editor name and version: Sublime Text 3.2.1 Build 3207
  • Platform: Windows 8.1
  • Color scheme: Custom
  • MagicPython version: 1.1.1
  • A sreenshot: See above
  • 5-10 lines of surrounding code: In the screenshot hopefully
Dominant language
JavaScript
Stars
1.4k
Forks
98
PR merge metrics
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

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.

More from MagicStack/MagicPython

All issues in MagicStack/MagicPython

Similar issues

More JavaScript issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.