JSONDecoder.raw_decode breaks on leading whitespace

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
20/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
backend

Research direction

Start with JSONDecoder.raw_decode and reproduce the leading-whitespace case described in the issue. Review json-raw-decoder-fix-whitespace.diff and issue15393_3.6.patch for the historical context; done means raw_decode no longer breaks on leading whitespace, with the behavior verified against the linked work.

Written by the indexing model from the issue text.

Description

3.7 (EOL) easy stdlib type-bug
BPO 15393
Nosy @jcea, @rbtcollins, @ezio-melotti, @bitdancer, @squidsoup, @Mariatta, @DanielNoord
Files
  • json-raw-decoder-fix-whitespace.diff: Patch for Python 3.3.0
  • json-raw-decoder-fix-whitespace.diff: Patch for Python 3.3.0, take two
  • issue15393_3.6.patch
    		•

    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 2012-07-19.10:09:55.376>
labels = ['3.7', 'easy', 'type-bug', 'library']
title = 'JSONDecoder.raw_decode breaks on leading whitespace'
updated_at = <Date 2022-03-18.20:05:49.519>
user = 'https://bugs.python.org/aalien'

    bugs.python.org fields:

    activity = <Date 2022-03-18.20:05:49.519>
actor = 'danielnoord'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2012-07-19.10:09:55.376>
creator = 'aalien'
dependencies = []
files = ['26434', '26450', '44613']
hgrepos = []
issue_num = 15393
keywords = ['patch', 'easy']
message_count = 14.0
messages = ['165829', '165830', '165831', '165832', '165834', '165835', '165836', '165918', '168936', '168939', '276143', '276161', '276291', '415523']
nosy_count = 8.0
nosy_names = ['jcea', 'rbcollins', 'ezio.melotti', 'r.david.murray', 'aalien', 'Bayard Randel', 'Mariatta', 'danielnoord']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue15393'
versions = ['Python 3.5', 'Python 3.6', 'Python 3.7']

    Linked PRs
    • gh-117397
    • gh-153017
    • gh-153018
    Dominant language
    Python
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    Avg merge
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    Merged PRs (30d)
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