operator.concat/iconcat could only work if left operand is a sequence
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3.7 (EOL)
stdlib
type-bug
- Dominant language
- Python
- Stars
- 77.2k
- Forks
- 36k
- PR merge metrics
- PR metrics pending
Description
| BPO | 29139 |
|---|---|
| Nosy | @rhettinger, @vstinner, @zware, @serhiy-storchaka, @zhangyangyu |
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 2017-01-03.09:58:30.441>
labels = ['3.7', 'type-bug', 'library']
title = 'operator.concat/iconcat could only work if left operand is a sequence'
updated_at = <Date 2017-03-18.06:26:19.039>
user = 'https://github.com/zhangyangyu'
bugs.python.org fields:
activity = <Date 2017-03-18.06:26:19.039>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2017-01-03.09:58:30.441>
creator = 'xiang.zhang'
dependencies = []
files = []
hgrepos = []
issue_num = 29139
keywords = []
message_count = 6.0
messages = ['284546', '284547', '284549', '284577', '284581', '289792']
nosy_count = 5.0
nosy_names = ['rhettinger', 'vstinner', 'zach.ware', 'serhiy.storchaka', 'xiang.zhang']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue29139'
versions = ['Python 3.7']
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
Start by reading the linked BPO issue 29139 and locating the standard-library implementation and tests for operator.concat and operator.iconcat. Reproduce the reported limitation, determine the expected behavior for non-sequence left operands, and add coverage showing the issue is resolved.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100