pip install traitlets==5.1.1

Traitlets Python configuration system

Source
Among top 100 packages on PyPI.
Over 60.7M downloads in the last 90 days.

Commonly used with traitlets

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

pickleshare

Tiny 'shelve'-like database with concurrency support

ptyprocess

Run a subprocess in a pseudo terminal

simplegeneric

Simple generic functions (similar to Python's own len(), pickle.dump(), etc.)

appnope

Disable App Nap on OS X 10.9

pexpect

Pexpect allows easy control of interactive console applications.

prompt-toolkit

Library for building powerful interactive command lines in Python

wcwidth

Measures the displayed width of unicode strings in a terminal

decorator

Decorators for Humans

pathlib2

Object-oriented filesystem paths

jedi

An autocompletion tool for Python that can be used for text editors.

scandir

scandir, a better directory iterator and faster os.walk()

path.py

A module wrapper for os.path

parso

A Python Parser

vncdotool

Command line VNC client

pyttsx3

Text to Speech (TTS) library for Python 2 and 3. Works without internet connection or delay. Supports multiple TTS engines, including Sapi5, nsss, and espeak.

ipython

IPython: Productive Interactive Computing

backcall

Specifications for callback functions passed in to an API

china-dictatorship

2018新疆改造中心,1989六四事件,1999法轮功 ,2019 996.ICU, 2018包子露宪,2015 710律师劫,2015巴拿马文件 邓家贵,2017低端人口,2008西藏骚乱

filewatch

Python File Watcher

Version usage of traitlets

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

5.1.0

51.82%

5.0.5

20.99%

4.3.3

14.68%

5.1.1

10.27%

4.3.2

1.69%