difflib reports incorrect location of mismatch
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3.7 (EOL)
3.8 (EOL)
stdlib
type-bug
- Dominant language
- Python
- Stars
- 77.2k
- Forks
- 36k
- PR merge metrics
- PR metrics pending
Description
| BPO | 35955 |
|---|---|
| Nosy | @tim-one, @jaraco, @cjerdonek, @tirkarthi |
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
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GitHub fields:
assignee = None
closed_at = None
created_at = <Date 2019-02-10.14:11:58.219>
labels = ['3.7', '3.8', 'type-bug', 'library']
title = 'difflib reports incorrect location of mismatch'
updated_at = <Date 2019-02-11.20:07:41.441>
user = 'https://github.com/jaraco'
bugs.python.org fields:
activity = <Date 2019-02-11.20:07:41.441>
actor = 'tim.peters'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2019-02-10.14:11:58.219>
creator = 'jaraco'
dependencies = []
files = []
hgrepos = []
issue_num = 35955
keywords = []
message_count = 13.0
messages = ['335154', '335155', '335156', '335158', '335231', '335235', '335246', '335247', '335248', '335252', '335257', '335268', '335269']
nosy_count = 4.0
nosy_names = ['tim.peters', 'jaraco', 'chris.jerdonek', 'xtreak']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue35955'
versions = ['Python 2.7', 'Python 3.7', 'Python 3.8']
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names Python's difflib library but provides no file, test, or reproduction. Start by locating the difflib implementation and reproducing the reported mismatch, then trace how the mismatch location is calculated. Done means the reported location is corrected and a regression test covers the case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 38/100