pip install Flask-Babel==2.0.0

Adds i18n/l10n support to Flask applications

Source
Among top 1000 packages on PyPI.
Over 3.7M downloads in the last 90 days.

Commonly used with Flask-Babel

Based on how often these packages appear together in public requirements.txt files on GitHub.

speaklater

implements a lazy string for python useful for use with gettext

Flask-OpenID

OpenID support for Flask

Flask-WhooshAlchemy

Whoosh extension to Flask/SQLAlchemy

flup

Random assortment of WSGI servers (py3)

guess-language

Guess the natural language of a text

flipflop

FastCGI wrapper for WSGI applications

Flask-Storage

Flask upload and storage extensions.

opentok

OpenTok server-side SDK

Whoosh

Fast, pure-Python full text indexing, search, and spell checking library.

Tempita

A very small text templating language

flask-oidc

OpenID Connect extension for Flask

basecamp

Almost complete warapper around the Basecamp API.

guess

Japanese charactor encoding detector

yunpian-sdk-python

yunpian-sdk-python

WhooshAlchemy

Whoosh extension to SQLAlchemy

tinify

Tinify API client.

python-loaders

Small collection of custom module loaders for Python.

qPython

kdb+ interfacing library for Python

Flask-JSONRPC

Adds JSONRPC support to Flask.

Version usage of Flask-Babel

Proportion of downloaded versions in the last 3 months (only versions over 1%).

1.0.0

67.13%

2.0.0

15.48%

0.12.2

15.12%

0.11.2

1.18%