cn2an
Convert Chinese numerals and Arabic numerals.
Decision gist · record as of 2026-08-14
Yes. The package is actively maintained, has no known vulnerabilities, uses a permissive MIT license, and solves a specific problem with low install friction. It is well-suited for applications that need bidirectional Chinese-Arabic numeral conversion. The experimental sentence-level transformation feature adds value for text processing but should be tested for your specific use cases.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.7 or later.
- The sentence-level transformation feature is marked experimental and may produce unexpected results in edge cases.
- Low install friction with a pure Python wheel.
License · maintenance · safety
MIT License (permissive) — MIT License permits unrestricted use, modification, and distribution with minimal restrictions, making it suitable for both open-source and commercial projects.
last release 2026-04-22 (114 days) · last repo commit 2026-04-23 · 765 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 304,235 downloads/mo, #7,807 on PyPI
Alternatives
Verify before relying
pip install cn2an
import cn2an
# Chinese to Arabic
result = cn2an.cn2an("一百二十三")
print(result) # 123
# Arabic to Chinese
result = cn2an.an2cn("123")
print(result) # 一百二十三- Whether the proces dependency is a required runtime or only used for internal data preprocessing
- Performance characteristics for very large batch conversions or real-time API usage
- Accuracy of the experimental sentence-level transformation feature across edge cases
What it is and what it does
cn2an is a bidirectional converter between Chinese numerals and Arabic numerals. It handles standard conversions across multiple parsing modes: strict mode enforces proper numeral syntax, normal mode accepts informal sequences, smart mode handles mixed notation, and direct mode performs character-by-character translation. Beyond simple numbers, it transforms dates, fractions, percentages, and temperatures within sentences, supporting negative numbers and decimals up to 10**16 magnitude in both directions.
The package offers three output styles for Arabic-to-Chinese conversion: lowercase Chinese numerals, uppercase formal numerals, and RMB currency notation. It includes an HTTP API for non-Python environments. The library depends on proces for data preprocessing and is actively maintained with recent bug fixes for numeral parsing edge cases.
Use it for
- Parse Chinese financial documents or invoices that use written numerals into machine-readable integers
- Generate human-readable Chinese numeral output for financial reports, receipts, or formal RMB amounts
- Extract and normalize dates from Chinese text for data cleaning pipelines
- Convert mixed-notation numbers in Chinese text for standardization
- Build multilingual number handling for applications serving Chinese-speaking users
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The package is actively maintained, has no known vulnerabilities, uses a permissive MIT license, and solves a specific problem with low install friction. It is well-suited for applications that need bidirectional Chinese-Arabic numeral conversion. The experimental sentence-level transformation feature adds value for text processing but should be tested for your specific use cases.
Install
cn2an on PyPI
Before you install
Low install friction with a pure Python wheel. The package is actively maintained with recent commits and no known vulnerabilities. Supports Python 3.7 and later versions across Windows, macOS, and Ubuntu.
Requires Python 3.7 or later. The sentence-level transformation feature is marked experimental and may produce unexpected results in edge cases.
License in practice
MIT License permits unrestricted use, modification, and distribution with minimal restrictions, making it suitable for both open-source and commercial projects.
Quickstart
pip install cn2an
import cn2an
# Chinese to Arabic
result = cn2an.cn2an("一百二十三")
print(result) # 123
# Arabic to Chinese
result = cn2an.an2cn("123")
print(result) # 一百二十三Verify before relying
- Whether the proces dependency is a required runtime or only used for internal data preprocessing
- Performance characteristics for very large batch conversions or real-time API usage
- Accuracy of the experimental sentence-level transformation feature across edge cases
Package facts
| License | MIT License permissive |
| Python support | Supports the current Python release >=3.7 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packageproces |
| Maintenance | Actively maintained 114 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 304,235 / month, #7,807 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9 |
Evidence: cn2an-0.5.24-py3-none-any.whl
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See also roman · roman-numerals · zhconv · roman-numerals-py · proces · pypinyin · recognizers-text-number · bangla · recognizers-text-number-with-unit · arabic-reshaper