pip install Flask-SQLAlchemy==2.5.1

Adds SQLAlchemy support to your Flask application.

Source
Among top 1000 packages on PyPI.
Over 9.9M downloads in the last 90 days.

Commonly used with Flask-SQLAlchemy

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

SQLAlchemy-Utils

Various utility functions for SQLAlchemy.

Flask-Testing

Unit testing for Flask

Flask-HTTPAuth

Basic and Digest HTTP authentication for Flask routes

migrate

A simple language agnostic database migration tool

Flask-Script

Scripting support for Flask

SQLAlchemy

Database Abstraction Library

Flask-Blogging

A flask extension for adding Markdown blog support to your site

Blogging-Plugins

A plugin library for Flask-Blogging flask extension blog.

markdown-nofollow

Markdown Extension to add rel="nofollow" to all links.

Flask-Restless

A Flask extension for easy ReSTful API generation

Flask-Migrate

SQLAlchemy database migrations for Flask applications using Alembic

Flask-Bcrypt

Brcrypt hashing for Flask.

flask-heroku

Heroku environment variable configurations for Flask

Flask-ToyBox

Create somehow-RESTful HTTP APIs with Flask

python-bcrypt

Blowfish password hashing

SQLAlchemy-Wrapper

A framework-independent wrapper for SQLAlchemy that makes it really easy to use

backports.pbkdf2

Fast PBKDF2 for Python 2.6 - 3.4

flask-marshmallow

Flask + marshmallow for beautiful APIs

pgpubsub

A convenient Python interface to Postgres's LISTEN and NOTIFY features.

Version usage of Flask-SQLAlchemy

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

2.5.1

63.57%

2.4.4

12.49%

2.4.1

6.57%

2.4.3

5.46%

2.3.2

4.26%

2.4.0

3.38%

2.2

2.23%

2.1

1.17%