Description

assignee = None
closed_at = None
created_at = <Date 2014-10-11.17:58:45.231>
labels = ['type-feature', 'expert-unicode']
title = 'Add block info to unicodedata'
updated_at = <Date 2015-10-17.07:47:47.945>
user = 'https://github.com/flying-sheep'

activity = <Date 2015-10-17.07:47:47.945>
actor = 'Denis Jacquerye'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Unicode']
creation = <Date 2014-10-11.17:58:45.231>
creator = 'flying sheep'
dependencies = []
files = []
hgrepos = []
issue_num = 22612
keywords = []
message_count = 2.0
messages = ['229101', '230498']
nosy_count = 4.0
nosy_names = ['vstinner', 'ezio.melotti', 'flying sheep', 'Denis Jacquerye']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue22612'
versions = ['Python 3.5']

Activity

1. flying-sheep commented on Oct 11, 2014

   

   flying-sheepmannequin

   on Oct 11, 2014

   MannequinAuthor

   More actions

   See also bpo-6331.

   The repo https://github.com/nagisa/unicodeblocks contains pretty much the functionality i’d like to see: a way to get access to information about all blocks, and a way to get the block name a char is in.

   I propose to include something very similar to those two APIs in unicodedata:

   unicodedata.Block: class with start, end, and name property.

   its __contains__ should work for single-char-strings (which tests if that char is in the block) and for ints (which tests if the codepoint is in the block)

   maybe make it iterable over its chars?

   unicodedata.blocks: OrderedDict of str (block name) → Block object mappings ordered by Block.start.

   then blocks.keys() would yield the names in order, and blocks.values() the block objects in order.

   unicodedata.block_of(chr, name_only=False): returns the Block object for which “chr in block” is True, or its name.

   ---

   alternative: make the Block class an unfancy namedtuple without __contains__ method.

   ---

   Together with bpo-18234, fixing this bug will complete UnicodeData support in python, i guess.
2. flying-sheep

   added

   type-featureA feature request or enhancementA feature request or enhancement

   on Oct 11, 2014
3. ezio-melotti commented on Nov 2, 2014

   

   ezio-melotti

   on Nov 2, 2014

   Member

   More actions

   I needed this in the past and had to implement it myself, so adding it to unicodedata might be OK. A script to generate the list of blocks from the official Unicode files should probably be created and used whenever we update the version of the Unicode database.
4. ezio-melotti

   added

   topic-unicode

   on Nov 2, 2014
5. ezio-melotti

   transferred this issue fromon Apr 10, 2022
6. StanFromIreland

   added

   extension-modulesC modules in the Modules dirC modules in the Modules dir

   on Feb 20, 2026
7. malemburg

   closed this as completedin f1f61bfon Feb 21, 2026
8. pull

   added a commit that references this issue on Feb 21, 2026

   pythongh-66802: Add `unicodedata.block()` function (python#145042)

   f1f61bf
9. brijkapadia

   added a commit that references this issue on Feb 28, 2026

   pythongh-66802: Add `unicodedata.block()` function (python#145042)

   7938d2f
10. ljfp

    added a commit that references this issue on Apr 25, 2026

    pythongh-66802: Add `unicodedata.block()` function (python#145042)

    c302174

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