babel
Internationalization utilities
Decision gist · record as of 2026-08-14
Yes. Babel is a production-stable, actively maintained library with no known vulnerabilities, low install friction, and permissive licensing. It is the standard choice for i18n/l10n in Python web applications and is widely trusted in the ecosystem. Install it if your application needs to support multiple languages or locales.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Low friction installation with a single pure-Python runtime dependency (pytz).
- Active maintenance with recent commits and a stable production status across Python 3.8–3.14 and PyPy.
License · maintenance · safety
BSD-3-Clause (permissive) — BSD-3-Clause permissive license allows use in commercial and open-source projects with minimal restrictions; attribution required.
last release 2026-02-01 (194 days) · last repo commit 2026-08-13 · 1,462 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 141,619,058 downloads/mo, #276 on PyPI
Alternatives
Verify before relying
pip install babel
from babel.dates import format_date
from datetime import date
formatted = format_date(date(2026, 8, 14), locale='fr_FR')
print(formatted) # Output: 14 août 2026- Whether Babel's locale data is bundled or requires external installation/updates
- Performance characteristics when handling very large numbers of locale conversions
What it is and what it does
Babel is a mature Python library for internationalizing and localizing applications, particularly web-based ones. It provides utilities to format dates, times, numbers, and currencies according to locale-specific conventions, handle message translation via gettext integration, and manage timezone operations. The library is widely used in web frameworks and applications that need to serve content in multiple languages and regions.
The package depends only on pytz for timezone handling and installs as a pure-Python wheel with no compiled dependencies. It supports Python 3.8 through 3.14 and PyPy, making it compatible with modern Python environments. Development is active, with the repository receiving regular commits and community engagement through its chat channel.
Use it for
- Format dates and times according to user locale (e.g., 'August 14, 2026' vs '14 août 2026')
- Localize numbers and currency values for different regions and language conventions
- Integrate message translation workflows using gettext-compatible catalogs
- Build multilingual web applications that adapt to user language and region settings
- Handle timezone conversions and display in locale-appropriate formats
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Babel is a production-stable, actively maintained library with no known vulnerabilities, low install friction, and permissive licensing. It is the standard choice for i18n/l10n in Python web applications and is widely trusted in the ecosystem. Install it if your application needs to support multiple languages or locales.
Install
babel on PyPI
Before you install
Low friction installation with a single pure-Python runtime dependency (pytz). Active maintenance with recent commits and a stable production status across Python 3.8–3.14 and PyPy.
License in practice
BSD-3-Clause permissive license allows use in commercial and open-source projects with minimal restrictions; attribution required.
Quickstart
pip install babel
from babel.dates import format_date
from datetime import date
formatted = format_date(date(2026, 8, 14), locale='fr_FR')
print(formatted) # Output: 14 août 2026Verify before relying
- Whether Babel's locale data is bundled or requires external installation/updates
- Performance characteristics when handling very large numbers of locale conversions
Package facts
| License | BSD-3-Clause permissive |
| Python support | Supports the current Python release >=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagepytz |
| Maintenance | Actively maintained 194 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 141,619,058 / month, #276 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/StableEnvironment :: Web EnvironmentIntended Audience :: DevelopersLicense :: OSI Approved :: BSD LicenseOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyTopic :: Software Development :: InternationalizationTopic :: Software Development :: Libraries :: Python Modules |
Evidence: babel-2.18.0-py3-none-any.whl
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See also flufl.i18n · oslo.i18n · quart_babel · ResourceBundle · translationstring · SmartlingApiSdk · flask-babel · l18n · zope.i18n · compare-locales