PyCQA / PyCQA/pycodestyle

E501: Combining diacritics counted against line length

Open
#856 3 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Python
Stars
5.2k
Forks
754
PR merge metrics
No merged PRs in 30d

Description

It looks like unicode combining diacritics are counted as full characters, which causes E501 to fire, even when it is visually less than 79 characters:

text = ['ся́ду', 'твёрдый', 'ю́бкой', 'ба́юшки', 'опя́ть', 'съе́сть', 'жи́ть', 'éли']
a = 'а́́́́́́́́́́́́́́́́́́́'

It seems to me that combining characters should be excluded from the count.

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 by tracing the E501 line-length check in the repository's Python source and compare its character-counting behavior with the combining-diacritic examples in this issue. Confirm that visually shorter lines no longer trigger E501 while ordinary characters remain counted, and add or update coverage if the existing test structure identifies a suitable location.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
45/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.