urllib.parse.parse_qs should not parse a query string containing illegal characters

Bug report

Bug description:

urllib.parse.parse_qsl will happily parse a query string containing '#'.

from urllib.parse import parse_qsl
parse_qsl('foo=#', strict_parsing=True)

Output is [('foo', '#')] .

But 'foo=#' is an invalid query string according to RFC 3986. Similarly, '[', and ']' are excluded from the set of valid query characters, but parse_qsl parses strings like 'foo=[' and 'foo=]' . In the absence of any allocation of responsibility, this looks like a bug to me.

CPython versions tested on:

3.13

Operating systems tested on:

macOS

Linked PRs

• gh-152530

從 urllib.parse.parse_qsl 開始，檢查查詢字元如何根據 RFC 3986 進行驗證。先查看現有的解析測試和連結的 PR gh-152530；當諸如 '#'、'[' 和 ']' 之類的非法字元按照已達成共識的行為得到一致處理，並由測試涵蓋時，即視為完成。