HTMLParser.handle_starttag should mention that value can be None

[srittau]

BPO	38484
Nosy	@srittau

^{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 2019-10-15.12:37:14.439>
labels = ['3.8', 'docs']
title = 'HTMLParser.handle_starttag should mention that value can be None'
updated_at = <Date 2019-10-15.12:37:14.439>
user = 'https://github.com/srittau'

bugs.python.org fields:

activity = <Date 2019-10-15.12:37:14.439>
actor = 'srittau'
assignee = 'docs@python'
closed = False
closed_date = None
closer = None
components = ['Documentation']
creation = <Date 2019-10-15.12:37:14.439>
creator = 'srittau'
dependencies = []
files = []
hgrepos = []
issue_num = 38484
keywords = []
message_count = 1.0
messages = ['354719']
nosy_count = 2.0
nosy_names = ['srittau', 'docs@python']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue38484'
versions = ['Python 3.8']

Linked PRs

• gh-82665 Mention that HTMLParser.handle_starttag value can be None #134312
• [3.14] gh-82665 Mention that HTMLParser.handle_starttag value can be None (GH-134312) #149037
• [3.13] gh-82665 Mention that HTMLParser.handle_starttag value can be None (GH-134312) #149038

[srittau]

The documentation for HTMLParser.handle_starttag (https://docs.python.org/3/library/html.parser.html#html.parser.HTMLParser.handle_starttag) should mention that the value of an attribute can be None for argument-less attributes. I can submit a PR if wanted.

[Fearless-Badger]

Looking to pick this up!