pip install typeguard==2.13.0

Run-time type checker for Python

Source
Among top 1000 packages on PyPI.
Over 35.9M downloads in the last 90 days.

Commonly used with typeguard

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

rtmidi

Python RtMidi interface

pyrtlsdr

A Python wrapper for librtlsdr (a driver for Realtek RTL2832U based SDR's)

scikits.samplerate

A python module for high quality audio resampling

reikna

GPGPU algorithms for PyCUDA and PyOpenCL

livestreamer

Livestreamer is command-line utility that extracts streams from various services and pipes them into a video player of choice.

spake2

SPAKE2 password-authenticated key exchange (pure python)

PyPlatec

Plates simulation library

power

Cross-platform system power status information.

lightning-python

A Python client library for the Lightning data visualization server

x11_hash

Binding for X11 proof of work hashing.

tarsnapper

Manages tarsnap backups

libtmux

scripting library / orm for tmux

chai

Easy to use mocking, stubbing and spying framework.

jsonnet

Python bindings for Jsonnet - The data templating language

mongodict

MongoDB-backed Python dict-like interface

willie

Simple and extendible IRC bot

pyblosxom

Pyblosxom is a file-based weblog engine.

gplaycli

GPlayCli, a Google play downloader command line interface

moretools

MORE Overly Reusable Essentials for python

Version usage of typeguard

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

2.12.1

64.56%

2.13.0

31.84%

2.7.1

1.48%

2.9.1

1.20%