Subclassed json.JSONEncoder does not respect default method for supported types

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
backend

Research direction

Start by reviewing the json.JSONEncoder behavior described in the title and the historical python/cpython#1558 pull request. Reproduce the subclassed encoder case for supported types, then add regression coverage showing that the subclass's default method is respected and run the relevant Python library tests.

Written by the indexing model from the issue text.

Description

stdlib type-bug
BPO 30343
Nosy @merwok, @Xophmeister
PRs
  • python/cpython#1558
    		•

    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 2017-05-11.13:58:26.296>
labels = ['type-bug', 'library']
title = 'Subclassed json.JSONEncoder does not respect default method for supported types'
updated_at = <Date 2020-10-19.22:32:36.651>
user = 'https://github.com/Xophmeister'

    bugs.python.org fields:

    activity = <Date 2020-10-19.22:32:36.651>
actor = 'eric.araujo'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2017-05-11.13:58:26.296>
creator = 'Xophmeister'
dependencies = []
files = []
hgrepos = []
issue_num = 30343
keywords = []
message_count = 3.0
messages = ['293494', '293554', '379046']
nosy_count = 2.0
nosy_names = ['eric.araujo', 'Xophmeister']
pr_nums = ['1558']
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue30343'
versions = ['Python 3.6']

    Dominant language
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