python / python/cpython

The only supported minidom attribute iteration (NamedNodeMap) is O(n^2)

Open
#84,866 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

3.13 performance topic-XML type-feature
Dominant language
Python
Stars
77.2k
Forks
36k
PR merge metrics
PR metrics pending

Description

BPO 40689
Nosy @nthykier

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

Show more details

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-05-19.19:55:58.248>
labels = ['expert-XML', '3.8', 'performance']
title = 'The only supported minidom attribute iteration (NamedNodeMap) is O(n^2)'
updated_at = <Date 2020-05-19.19:55:58.248>
user = 'https://github.com/nthykier'

bugs.python.org fields:

activity = <Date 2020-05-19.19:55:58.248>
actor = 'nthykier'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['XML']
creation = <Date 2020-05-19.19:55:58.248>
creator = 'nthykier'
dependencies = []
files = []
hgrepos = []
issue_num = 40689
keywords = []
message_count = 1.0
messages = ['369384']
nosy_count = 1.0
nosy_names = ['nthykier']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue40689'
versions = ['Python 3.8']

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 locating Python's minidom implementation and the NamedNodeMap attribute-iteration entry point; the issue does not name files or tests. Determine how the supported iteration becomes O(n^2), then validate that the revised behavior avoids that complexity with appropriate minidom coverage or performance checks.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.