zhon
Zhon provides constants used in Chinese text processing.
Decision gist · record as of 2026-08-14
Yes. Zhon is a stable, dependency-free reference library for Chinese text processing with no known vulnerabilities. Install it if you're building tools that need to identify, validate, or extract Chinese characters, Pinyin, or Zhuyin. The dormant maintenance status is not a concern for a constants-only package—the character sets it exports are unlikely to change frequently.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Low install friction with no runtime dependencies.
- Dormant maintenance status (last release 2024-11-20, last commit 2024-12-11) but stable and widely used; no active development but no signs of abandonment.
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use, modify, and distribute this package freely with minimal restrictions.
last release 2024-11-20 (632 days) · last repo commit 2024-12-11 · 386 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 571,763 downloads/mo, #5,949 on PyPI
Alternatives
Verify before relying
import re
import zhon.hanzi
# Find CJK characters in a string
re.findall('[{}]'.format(zhon.hanzi.characters), 'I broke a plate: 我打破了一个盘子.')
# Returns: ['我', '打', '破', '了', '一', '个', '盘', '子']- Whether the package's character sets and patterns are current with Unicode standards for modern Chinese text
What it is and what it does
Zhon is a reference library of constants for Chinese language processing. It exports pre-defined character sets (CJK characters, radicals, punctuation), Pinyin validation patterns (vowels, consonants, syllable/word/sentence regex), Zhuyin marks, and CC-CEDICT character references. The package has no runtime dependencies and is designed to be imported and used with Python's re module or other text processing tools.
Typical use is to extract or validate Chinese text components: finding all hanzi characters in a mixed-language string, matching Pinyin syllables or words with regex, or validating sentence structure. It's a data reference, not an algorithm library—you provide the processing logic (usually regex) and zhon provides the character classes and patterns.
Use it for
- Extract all CJK characters from mixed-language text using zhon.hanzi.characters with regex
- Validate and extract Pinyin syllables or words from romanized Chinese using zhon.pinyin patterns
- Build Chinese text segmentation or tokenization tools that rely on character class definitions
- Identify Chinese punctuation marks in text for parsing or cleaning tasks
- Validate Zhuyin (bopomofo) syllables in phonetic Chinese text processing
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Zhon is a stable, dependency-free reference library for Chinese text processing with no known vulnerabilities. Install it if you're building tools that need to identify, validate, or extract Chinese characters, Pinyin, or Zhuyin. The dormant maintenance status is not a concern for a constants-only package—the character sets it exports are unlikely to change frequently.
Install
zhon on PyPI
Before you install
Low install friction with no runtime dependencies. Dormant maintenance status (last release 2024-11-20, last commit 2024-12-11) but stable and widely used; no active development but no signs of abandonment.
License in practice
MIT license is permissive; you can use, modify, and distribute this package freely with minimal restrictions.
Quickstart
import re
import zhon.hanzi
# Find CJK characters in a string
re.findall('[{}]'.format(zhon.hanzi.characters), 'I broke a plate: 我打破了一个盘子.')
# Returns: ['我', '打', '破', '了', '一', '个', '盘', '子']Verify before relying
- Whether the package's character sets and patterns are current with Unicode standards for modern Chinese text
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Dormant 632 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 571,763 / month, #5,949 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.9Topic :: Software Development :: Libraries :: Python ModulesTopic :: Text Processing :: Linguistic |
Evidence: zhon-2.1.1-py3-none-any.whl
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See also hanzidentifier · nameparser · pypinyin · xpinyin · pypinyin-dict · pinyin · jamo · jieba · OpenCC · mplfonts