Thousands of Python libraries

The Python ecosystem has always been famous for its complete range of class libraries, which is also an important reason why this language is so popular.

text processing

chardet: Character encoding detector, this library can detect the encoding of text, web pages, xml and other file formats
difflib: text difference comparison
ftfy: Make the program more fully support Unicode encoding
fuzzywuzzy: can perform fuzzy matching of strings
Levenshtein: Calculate various distances and string similarities
pangu.py: adjust the spacing between letters and numbers in Chinese, Japanese and Korean characters
pypinyin: Chinese pinyin conversion tool
shortuuid: used to generate UUID
simplejson: JSON encoder and decoder
unidecode: Unicode format operation
uniout: print characters without escaping
xpinyin: Convert Chinese characters to Pinyin
yfiglet-figlet: pyfiglet - Python implementation of figlet
flashtext: used for text search and replacement
esmre: speed up regular expressions
awesome slugify: for handling Unicode
python-slugify: Convert unicode to ASCII
unicode-slugify: can generate unicode slugs and depends on Django
phonenumbers: used to parse, format, store and verify phone numbers
PLY: lex and yacc parsing tool
Pygments: syntax highlighting tool
pyparsing: can generate universal parsers
python-nameparser: Decompose a person's name into several independent parts
python-user-agents: Browser user agent parser
sqlparse: SQL parser

special text processing

tablib: used to process tabular data
Marmir: Convert Python data structures into spreadsheets
openpyxl: library for reading and writing Excel files
pyexcel: A library that provides a unified API for manipulating Excel files
python-docx: Manipulate Word files
relatorio: templated OpenDocument files
unoconv: Convert LibreOffice/OpenOffice file formats
XlsxWriter: used to create Excel.xlsx files
xlwings: A library for calling Python from Excel
xlwt/xlrd: read and write data in Excel files
PDFMiner: a library for extracting information from PDF documents
PyPDF2: A library for various operations on PDF pages
ReportLab: Can create rich text PDF documents
Mistune: Markdown parser
Python-Markdown: There is a Markdown parser
Python-Markdown2: Markdown parser implemented in pure Python, faster, more accurate and scalable than Python-Markdown
PyYAML: YAML parser
csvkit: Tool for manipulating CSV
unp: a command line tool for unpacking archive files

HTML/XML parsing

BeautifulSoup: Parse HTML or XML format data
bleach: Whitelist-based HTML cleaning and text linking library
cssutils: CSS library
html5lib: HTML document and fragment parsing and serialization library
lxml: a library for processing HTML and XML
MarkupSafe: XML/HTML/XHTML markup safe strings
pyquery: a library for parsing HTML, similar to jQuery
requests-html: Humanized HTML parsing library
untangle: Convert XML documents to Python objects
xhtml2pdf: HTML/CSS to PDF tool
xmltodict: Process XML like JSON
htmlparser, the official version parses HTML DOM tree

File processing

aiofiles: asynchronous file operation library based on asyncio
imghdr: detect image type
mimetypes: Map filenames to MIME types
path.py: module for more convenient path operations
pathlib: cross-platform, object-oriented path manipulation library
python-magic: file type detection
Unipath: Manipulate files and directories in an object-oriented way
pickle/cPickle: implements basic data sequence and deserialization
watchdog: a tool for managing file system events

Configuration file processing

ConfigParser: ini file parser
configobj: ini file parser
profig: multi-format configuration conversion tool
config: hierarchical configuration module
python-decouple: Completely isolate setup and code

Document related

Sphinx: documentation generator
mkdocs: Markdown format document generator
pycco: a simple, fast, programming-style documentation generator
pdoc: A tool for generating documents in various formats from source code comments
readthedocs: an online document hosting system based on Sphinx/MkDocs

Log management

logging: Provides logging function
logbook: a replacement for the Logging library
Eliot: Creating logs for complex and distributed systems
Raven: Python client for Sentry
Sentry: a server that records and collects logs in real time

date and time

arrow: a very good date and time manipulation library
Chronyk: for parsing times and dates in handwritten formats
dateutil: extension of datetime module
delorean: A library that solves date processing problems in Python
maya: a humanized time processing library
moment: Python library for working with times and dates
pendulum: a time manipulation library with more explicit, predictable behavior than arrow
PyTime: for manipulating date/time via strings
pytz: modern and historical versions of world time zone definitions
when.py: perform common date and time operations

Image related

Image Processing

pillow: is a more easy-to-use image manipulation library
hmap: image histogram mapping
imgSeek: Tool for searching a collection of images using visual similarity
nude.py: Nude detection
pyBarcode: Generate barcodes in a Python program
pygram: Instagram-like image filters
python-qrcode: a QR code generator
Quads: Computer art based on quadtrees
scikit-image: a library for image processing
thumbor: a small image service
wand: Python version of MagickWand
face_recognition: Simple and easy-to-use face recognition library

OCR

pyocr: a wrapper for Tesseract and Cuneiform
pytesseract: Another wrapper for Google Tesseract OCR
python-tesseract: A wrapper class for Google Tesseract OCR

Network related

download

s3cmd: Command line tool for managing Amazon S3 and CloudFront
s4cmd: S3 command line tool
you-get: YouTube/Youku/Niconico video downloader
youtube-dl: Tool for downloading YouTube videos
Coursera: Videos can be downloaded from http://coursera.org
subliminal: library for searching and downloading subtitles

HTTP

aiohttp: Asynchronous HTTP library based on asyncio
requests: the most popular HTTP request library
grequests: requests library + gevent implements asynchronous HTTP requests
httplib2: HTTP client library
treq: HTTP client similar to requests
urllib3: A thread-safe HTTP library

Network visualization

Mininet: a popular network simulator
POX: A Python-based software-defined network application
Pyretic: Provides powerful abstractions for network switches and simulators
SDX Platform: SDN-based IXP implementation
NRU: A component-based software-defined networking framework

URL handling

furl: a simpler URL processing library
purl: a simple, immutable URL class
pyshorteners: a pure Python URL shortening library
shorturl: library for generating short URLs

Web Crawler

Scrapy: a fast and advanced network scraping framework
cola: a distributed crawler framework
Demiurge: PyQuery-based crawler framework
feedparser: feed parser
Grab: Site crawling framework
MechanicalSoup: A library for automating interactions with web sites
portia: Scrapy visual crawler
pyspider: a powerful crawler tool
RoboBrowser: A simple website browsing tool

Web content extraction

Haul: a scalable image scraping tool
html2text: Convert HTML to Markdown format
lassie: web content retrieval library
micawber: Web content extraction library for extracting rich content from URLs
newspaper: perform news extraction, article extraction and content curation
opengraph: module used to parse open content protocols
python-goose: HTML content/article extractor
python-readability: Python interface to the readability tool
sanitize: messy data adjustment
sumy: module for automatic summarization of text files and HTML pages
textract: Extract text from documents in any format
mechanize: web browsing tool

WebSocket

AutobahnPython: WebSocket & WAMP Tools
Crossbar: Open Source Unified Application Routing
django-socketio: WebSockets tools for Django
WebSocket-for-Python: WebSocket client and server library

RPC

SimpleJSONRPCServer: is an implementation of the JSON-RPC specification
SimpleXMLRPCServer: Simple XML-RPC server implementation
zeroRPC: is an RPC implementation

web framework

Full stack framework

Django: the most popular web framework in Python
Flask: a micro web framework
pyramid: a small and fast open source web framework
Bottle: A fast, small, lightweight WSGI micro-web framework
CherryPy: A minimalist web framework
TurboGears: a micro-framework that scales into a full-stack solution
web.py: a simple yet powerful web framework
web2py: a full-stack web framework
Tornado: a web framework and asynchronous networking library
sanic: asynchronous network framework
Karrigell: A simple web framework
PyDBLitewebpy: a small and flexible web framework
Quixote: a web development framework
Grok: Web framework based on Zope3
Bluebream: open source web application server
guava: lightweight, high-performance web framework

CMS

odoo-cms: Open source enterprise CMS
django-cms: open source enterprise CMS
djedi-cms: lightweight yet powerful Django CMS
FeinCMS: An advanced content management system built on Django
Kotti: an advanced web application framework
Mezzanine: a powerful and flexible content management platform
Opps: a CMS platform designed for magazine and newspaper websites
Plone: a CMS built on the open source application server Zope
Quokka: a flexible and scalable small CMS
Wagtail: A Django content management system
Widgy: the latest CMS framework, based on Django

Web permissions/security

Carteblanche: Code alignment module, which handles code navigation and permissions well
django-guardian: individual object permissions
django-rules: A small but powerful application that provides object-level permission management
Flask-OAuthlib: OAuth toolkit for Flask
django-oauth-toolkit: OAuth2 for Django users
django-allauth: Authentication module for Django
Authomatic: Simple yet powerful framework for authentication/authorization clients

business framework

django-oscar: An e-commerce framework for Django
django-shop: Django-based store system
Cartridge: A shopping cart application built on Mezzanine
shoop: an e-commerce platform based on Django
alipay: Alipay API
merchant: Django application that can accept payments from multiple payment platforms
money: currency library
python-currencies: Display currency format and its numerical value

Restful API

django-rest-framework: A Django-based tool for building Web APIs
django-tastypie: API tool for developing Django applications
django-formapi: Django’s form validation tool
flask-api: API tool developed for flask
flask-restful: Tool for quickly creating REST APIs for flask
flask-restless: RESTful APIs developed for the SQLAlchemy database model
flask-api-utils: handles API presentation and validation for Flask
eve: REST API framework driven by Flask, MongoDB, etc.
cornice: a REST framework for Pyramid
falcon: A high-performance framework for building cloud API and web app backends
sandman: Automatically create REST APIs for database-driven systems
restless: framework-agnostic REST framework
ripozo: Tool for quickly creating REST APIs

template engine

Jinja2: a modern and friendly template engine
Chameleon: an HTML/XML template engine
Genshi: used to generate web-aware results
Mako: super fast lightweight template

queue

celery: an asynchronous task queue/job queue
huey: small multi-threaded task queue
mrq: distributed worker task queue, using Redis and gevent
rq: Simple job queuing tool
simpleq: a simple queue based on Amazon SQS

search

django-haystack: Django modular search tool
elasticsearch-py: the official underlying Python client for Elasticsearch
elasticsearch-dsl-py: The official high-level Python client for Elasticsearch
solrpy: Python client for solr
Whoosh: A fast search engine written in pure Python

news feed

django-activity-stream: Generate generic activity streams from site actions
Stream-Framework: Create dynamic messaging and notification systems using Cassandra and Redis

Resource management

django-compressor: Compress linked and inline JavaScript or CSS into a single cache file
django-storages: A collection of tools for storage backends for Django
fanstatic: Package, optimize and provide static file dependencies as Python packages
File Conveyor: Used to discover and synchronize files to CDNs, S3 and FTP
Flask-Assets: Integrate web resources into Flask app
jinja-assets-compressor: used to compile and compress resources
webassets: Packaging, optimizing and managing static resources to generate unique cache URLs

cache

Beaker: a library for caching sessions
django-cache-machine: Automatic caching and invalidation tool
django-cacheops: ORM with automatic granular event-driven invalidation
django-viewlet: rendering templates and additional cache control features
dogpile.cache: a next-generation replacement for Beaker
HermesCache: caching library with tag-based invalidation and dogpile effect protection
johnny-cache: Django application caching framework
pylibmc: libmemcached interface encapsulation

form

Deform: HTML form generation library
django-bootstrap3: Django integrated with Bootstrap3
django-crispy-forms: Create beautiful forms in a very elegant and DRY (Don't repeat yourself) way
django-remote-forms: A platform-independent Django form serialization tool
WTForms: a flexible form validation and rendering library
WTForms-JSON: WTForms extension for processing JSON data

data verification

Cerberus: mapping validator
colander: A system for validating and deserializing data obtained from XML, JSON, HTML forms and serialized data
kmatch: A tool for matching/validating/filtering dictionaries
schema: A library for validating Python data structures
Schematics: for data structure validation
valideer: lightweight data validation and adaptation library
voluptuous: Data verification library, mainly used to verify JSON, YAML and other data passed into Python

e-mail

django-celery-ses: email backend with AWS SES and Celery
envelopes: a human-friendly email library
flanker: an email address and Mime parsing library
imbox: IMAP library
inbox.py: SMTP server
inbox: an open source email toolbox
lamson: Python-style SMTP application server
mailjet: Provides functions such as batch email sending, statistics, etc.
marrow.mailer: a high-performance scalable email distribution framework
modoboa: Email hosting and management platform
pyzmail: Create, send and parse emails
Talon: used to extract information and signatures
django-simple-captcha: A simple, highly customizable Django application
django-simple-spam-blocker: A simple spam blocking tool for Django

URL

webargs: a library for parsing HTTP request parameters
short_url: short URL generation

globalization

Babel: an internationalization library for Python
Korean: A Korean lexicon library

Admin panel

Ajenti: An Admin Panel Worth Having
django-suit: A replacement for the Django admin interface
django-xadmin: A replacement for Django admin
flask-admin: A simple and extensible admin interface framework for Flask
flower: A tool for real-time monitoring of Celery clusters and providing a web management interface
Grappelli: A beautiful skin for the Django admin interface
Wooey: Can create web user interfaces for Python scripts

static site generation

Pelican: Process content via Markdown or ReST, use Jinja2 for themes
Cactus: Static site generator designed for professional designers
Hyde: static site generator based on Jinja2
Nikola: static website and blog generator
Tinkerer: a blogging engine/static site generator
Lektor: an easy-to-use static CMS and blogging engine
Tags: the simplest static website generator

WSGI server

gunicorn: WSGI tool written partly in C
uwsgi: used to build hosting services
bjoern: async is very fast
fapws3: asynchronous, written in C language
meinheld: asynchronous server
netius: asynchronous, very fast
paste: multi-threaded, stable, proven
rocket: multi-threaded
waitress: multi-threading
Werkzeug: a WSGI tool library

ORM

Django Models: an important component of Django
SQLAlchemy: SQL tool and object-relational mapping tool
Peewee: A small ORM
PonyORM: Provides a generator-oriented SQL ORM
python-sql: Python-style SQL queries
django-mongodb-engine: Django MongoDB backend
PynamoDB: The backend for Amazon DynamoDB
flywheel: an object mapping tool for Amazon DynamoDB
MongoEngine: Object document mapping tool for MongoDB
hot-redis: backend for Redis
redis: Provides simple models and containers that can persist in Redis
butterdb: Python ORM for Google Drive spreadsheets

geographical location

GeoDjango: a world-class geographic web framework
GeoIP: API for the MaxMind GeoIP Legacy database
geojson: Python tool for GeoJSON
geopy: address encoding toolbox
pygeoip: Pure Python GeoIP API
django-countries: Provides country selection functionality for tables, flag icon static files, and country fields in models

system

process

envoy: a more user-friendly module than the subprocess module
sarge: Another encapsulation of the subprocess module
sh: subprocess replacement library
subprocess: an artifact for calling shell commands

Concurrency/Parallel

multiprocessing: process-based "thread" interface
threading: higher-level thread interface
eventlet: an asynchronous framework supporting WSGI
gevent: Python network library based on coroutines
Tomorrow: a library for generating asynchronous code
uvloop: A library for ultra-fast asyncio event loop implementation on top of libuv

Database related

Database implemented in Python

pickleDB: Simple lightweight key-value storage database
PipelineDB: Streaming SQL Database
TinyDB: a tiny document-oriented database
ZODB: Key-value and object graph database

Database driven

aiomysql: asynchronous MySQL database operation library based on asyncio
mysql-python: MySQL database connector
mysqlclient: mysql-python branch
oursql: a better MySQL connector
PyMySQL: Pure Python MySQL driver
psycopg2: The most popular PostgreSQL adapter
queries: encapsulation of the psycopg2 library
txpostgres: Twisted-based asynchronous PostgreSQL driver
apsw: SQLite wrapper
dataset: stores Python dictionaries in the database
pymssql: A simple Microsoft SQL Server database interface
cassandra-python-driver: Python driver for Cassandra
HappyBase: A library designed for Apache HBase
Plyvel: a fast and feature-rich interface library for LevelDB
py2neo: encapsulated client for Neo4j restful interface
pycassa: Python Thrift driver for Cassandra
PyMongo: The official Python client for MongoDB
redis-py: Python client for Redis
telephus: Cassandra client based on Twisted
txRedis: Redis client based on Twisted

Safety

OAuth

OAuthLib: an OAuth request-signature library
python-oauth2: fully tested abstract interface
python-social-auth: Set up a simple social authentication method
rauth: Python library for OAuth 1.0/a, 2.0, and Ofly
sanction: Super simple OAuth2 client implementation

password

cryptography: Provides basic cryptography content and methods
hashids: Implementing hashids in Python
Paramiko: Provides ssh client and server functions
Passlib: Secure password storage/hashing library
PyCrypto: Cryptozoology Toolbox
PyNacl: Networking and cryptography library

other

jose: Implementation of JavaScript Object Signing and Encryption Draft
PyJWT: JSON Web Token
python-jws: JSON Web Signature
python-jwt: Module for generating and validating JSON web tokens
Permissions: Allow or deny user access to data or functions

AI

natural language processing

NLTK: Advanced tools for building programs that process human language data
jieba: Chinese word segmentation tool
langid.py: independent language recognition system
SnowNLP: a library for processing Chinese text
TextBlob: Natural Language Processing Tool
TextGrocery: A simple and efficient short text classification tool
thulac: a Chinese lexical analysis toolkit developed and launched by the Natural Language Processing and Social Humanities Computing Laboratory of Tsinghua University
loso: Chinese word segmentation function library

computer vision

OpenCV: Open source computer vision library
pyocr: Wrapping library for Tesseract and Cuneiform
pytesseract: Google Tesseract OCR packaging library
SimpleCV: an open source framework for creating computer vision applications

Machine Learning/Deep Learning

Caffe: Python interface to Caffe
Caffe2: A lightweight, modular, and scalable deep learning framework
Crab: a flexible and fast recommendation engine
gensim: Humanized topic modeling library
hebel: deep learning library
keras: neural network
MXNet: an efficient and flexible deep learning framework
NuPIC: Numenta Platform for Intelligent Computing
pattern: network mining module
PyBrain: Machine Learning Library
pydeep: deep learning library
Pylearn2: A machine learning library based on Theano
python-recsys: library used to implement recommendation systems
Pytorch: A deep learning framework with tensors and dynamic neural networks
scikit-learn: Machine learning module built on SciPy
skflow: a simplified interface to TensorFlow
TensorFlow: the most popular deep learning framework open sourced by Google
Theano: a fast numerical computation library
vowpalporpoise: lightweight Vowpal Wabbit package
Milk: Machine Learning Toolbox
PyMVPA (Multivariate Pattern Analysis in Python): A Python toolkit that provides statistical learning analysis for large data sets. It provides a flexible and extensible framework.

Scientific Computing and Data Analysis

data processing

astropy: astronomy-related library
bcbio-nextgen: Provides best-practice processing workflows for fully automated high-throughput sequencing analysis
bccb: bioanalysis
Biopython: a set of free tools for biological computing
blaze: A big data interface for NumPy and Pandas
cclib: a library for parsing and interpreting output from computational chemistry packages
NetworkX: High-performance tools designed for complex networks
Neupy: execute and test a variety of different artificial neural network algorithms
Numba: Python for data science
NumPy: a basic package for scientific computing
Open Babel: used to describe a variety of chemical data
Open Mining: Mining business intelligence using Python
orange: Perform data mining, data visualization, analytics and machine learning
Pandas: data structures and data analysis tools
PyDy: Used to aid the dynamic motion modeling workflow
PyMC: Markov Chain Monte Carlo Sampling Tool
RDKit: cheminformatics and machine learning software
SciPy: open source software for math, science, and engineering
statsmodels: statistical modeling and econometrics
SymPy: a library for symbolic mathematics
zipline: algorithmic trading library
Bayesian-belief-networks: An elegant Bayesian belief network framework
ScientificPython: for scientific computing
visvis: Visual computing module library

data visualization

matplotlib: the most popular Python plotting library
bokeh: Make interactive web drawings
ggplot: Python version of ggplot2
plotly: a web plotting library based on matplotlib
pyecharts: Data visualization library based on Baidu Echarts
pygal: SVG chart creation tool
pygraphviz: Python implementation of Graphviz
PyQtGraph: interactive real-time image drawing component
SnakeViz: Browser-based module output viewing tool
vincent: Conversion tool for converting Python to Vega syntax
VisPy: a high-performance scientific visualization tool based on OpenGL

GUI and game development

GUI

curses: built-in ncurses wrapper for creating terminal graphical user interfaces
enaml: Create beautiful user interfaces
kivy: library for creating user interactive applications
pyglet: cross-platform window and multimedia library
PyQt: Cross-platform user interface framework
PySide: Cross-platform user interface framework Qt
Tkinter: GUI standard library
Toga: A GUI toolkit native to the operating system
urwid: library for creating terminal GUI applications
wxPython: is a mixture of the wxWidgets C++ class library and the Python language
PyGObject: Python implementation of GLib/GObject/GIO/GTK+ (GTK+3)
Flexx: A tool set for creating GUI programs that uses web technology to display the interface
PyGtk: GUI program development library
turtle: Python drawing tool

game development

Cocos2d: Tools for developing 2D games
Panda3D: 3D game engine
Pygame: the most popular module for writing games
PyOgre: used to develop games and simulation programs
PyOpenGL: Python bindings for OpenGL and its related APIs
PySDL2: A wrapper for the SDL2 library
RenPy: a visual novel engine
PySFML: visual novel engine

Audio and video

Audio

audiolazy: digital signal processing package
audioread: cross library audio decoding
beets: music library management tool
dejavu: audio fingerprint extraction and identification
django-elastic-transcoder：Django + Amazon Elastic Transcoder
eyeD3: Tools for manipulating audio files
id3reader: used to read MP3 metadata
m3u8: module used to parse m3u8 files
mutagen: used to process audio metadata
pydub: Manipulate audio files
pyechonest: Python client for the Echo Nest API
talkbox: used to process speech/signals
TimeSide: open source web audio processing framework
tinytag: library for reading music metadata from MP3, OGG, FLAC and Wave files
mingus: advanced music theory and score package

video

moviepy: a script-based video editing module
scikit-video: SciPy video processing common program
shorten.tv: video summary

Test related

testing framework

unittest: unit testing framework
nose: extends the functionality of unittest
contexts: BDD framework
hypothesis: A testing library based on advanced Quickcheck style features
mamba: the ultimate testing tool for Python
PyAutoGUI: PyAutoGUI is a humanized cross-platform GUI automatic testing module
pyshould: Test module based on PyHamcrest
pytest: a mature, full-featured testing tool
green: clean and colorful testing tools
pyvows: BDD-style testing tool
Robot Framework: Universal automated testing framework

Web testing

Selenium: Python implementation of Selenium WebDriver
locust: a scalable user stress testing tool
sixpack: A language-agnostic A/B testing framework
splinter: open source web application testing tool

Mock test

mock: library for fake test data
doublex: a powerful doubles testing framework
freezegun: date forgery module
httmock: library for fake requests
httpretty: HTTP request mock tool
responses: library for forging requests requests
VCR.py: Record and replay HTTP interactions in tests

object factory

factoryboy: Test firmware replacement library
mixer: Another alternative library for testing firmware
modelmommy: Create random firmware for Django tests

code coverage

coverage: code coverage measurement
Codecov: Code Coverage Testing Tool

dummy data

faker: used to generate fake data
fake2db: fake database generator
radar: Generate random date/time
FuckIt.py: Use state-of-the-art techniques to ensure that Python code continues to run regardless of whether it is correct or incorrect

code tools

code analysis

coala: a language-independent and easily extensible code analysis application
code2flow: Convert Python and JavaScript code into flowcharts
pycallgraph: can visualize the process (call graph) of Python applications
pysonar2: type inference and retrieval tool

Lint tools

Flake8: Modular source code inspection tool
Pylint: a fully customizable source code analyzer
YAPF: Google’s Python code formatting tool
pylama: Code review tool for Python and JavaScript

Code formatting

autopep8: Automatically format Python code to conform to the PEP8 specification
black: A committed Python code formatter

debugger

ipdb: pdb enabled in IPython
pudb: Console-based Python debugger
pyringe: a debugger that can attach and inject code into a process
wdb: Web debugger working over WebSockets
winpdb: Python debugger with graphical user interface
django-debug-toolbar: Display various debugging information for Django
django-devserver: A replacement for the Django runtime server
flask-debugtoolbar：django-debug-toolbar 的 flask 版

Performance analysis

lineprofiler: line-by-line performance analysis tool
Memory Profiler: Monitor memory usage of Python code
profiling: Interactive Python performance profiling tool
pyelftools: Parse and analyze ELF files and DWARF debugging information
python-statsd: Python client for statsd server

log

logging: Provides logging functionality for Python
logbook: a replacement for the Logging library
Eliot: Creating logs for complex and distributed systems
Raven: Python implementation of Sentry
Sentry: a server that records and collects logs in real time

continuous integration

Travis CI: a popular continuous integration tool
CircleCI: a continuous integration tool
Vexor CI: Tools for continuous integration for private apps
Wercker: Based on the Docker platform, used to build and deploy microservices

Code quality

Codacy: Automated code review
QuantifiedCode: a data-driven, automated, continuous code review tool

DevOps

Ansible: A very simple IT automation platform
SaltStack: Infrastructure Automation and Management System
OpenStack: Open source software for building private and public clouds
Docker Compose: a rapid decoupled development environment based on Docker
Fabric: Simple tool for remote execution and deployment
cuisine: Provides a series of advanced functions for Fabric
Fabtools: Tools for writing Fabric files
gitapi: A pure Python API for Git
hgapi: Pure Python API for Mercurial
honcho: used to manage Procfile-based applications
pexpect: Control interactive programs in a pseudo terminal
psutil: cross-platform process and system tools module
supervisor: UNIX process control system

Task scheduling

APScheduler: lightweight but powerful in-process task scheduling tool
django-schedule: A Django scheduling application
doit: task execution and build tool
gunnery: a multi-purpose task execution tool for distributed systems
Joblib: a tool that provides lightweight job pipelines
Plan: a better tool for writing crontab files
schedule: Humanized Python task scheduling library
Spiff: a workflow engine implemented in pure Python
TaskFlow: a library that facilitates task execution
AirFlow: is a workflow distribution management system

high performance

Cython: an optimizing static compiler for Python
PeachPy: x86-64 assembler embedded in Python
PyPy: Python interpreter implemented in Python
Pyston: A Python implementation built using LLVM and modern JIT techniques
Stackless Python: An enhanced version of Python

Windows environment

Python(x,y): A Python distribution for scientific applications
pythonlibs: Unofficial Python extension binary package for Windows platforms
PythonNet: an integrated environment for Python and the .NET common language runtime
PyWin32: Python extension for Windows
WinPython: Portable development environment under Windows 7/8 system

Hardware related

ino: command line tool for operating Arduino
Pyro: Python Robot Programming Library
PyUserInput: cross-platform module for controlling mouse and keyboard
scapy: library for manipulating packets
wifi: used to operate WiFi on Linux platform
Pingo: Provides a unified API for devices like Raspberry Pi, pcDuino, Intel Galileo, etc.

Environment and package management

environmental management

p: A very simple interactive Python version management tool
pyenv: Simple Python version management tool
Vex: A tool that can execute commands in a virtual environment
virtualenv: Tool for creating independent Python environments
virtualenvwrapper: a set of extensions for virtualenv
pew: A set of tools for managing multiple virtual environments
PyRun: Python version management tool that requires no installation

Package management

pip: package and dependency management tool
pip-tools: A set of tools to keep Python package dependencies updated
pipenv: the officially recommended new generation package management tool
conda: cross-platform binary package management tool
Curdling: A command-line tool for managing Python packages
wheel: the new standard for Python distribution
Pdm: a new generation of package management tools
easy_install: software package management system

Package warehouse

warehouse: the next generation of PyPI
bandersnatch: PyPI mirror tool provided by PyPA
devpi: PyPI services and packaging/testing/distribution tools
localshop: local PyPI service
PyPI: a new generation of Python package library management tool

Distribute and build

software distribution

PyInstaller: Convert Python programs into independent executable files
dh-virtualenv: Build and distribute the virtualenv virtual environment as a Debian package
Nuitka: Compile scripts, modules, and packages into executable files or extension modules
py2app: Turn Python scripts into standalone packages
py2exe: Turn Python scripts into standalone packages
pynsist: Tool for creating Windows installers
cx-Freeze: a cross-platform library for packaging into executable files

Construct

buildout: a build system
BitBake: Build Tool for Embedded Linux
fabricate: a build tool that automatically finds dependencies
PlatformIO: Multi-platform command line build tool
PyBuilder: a continuous build tool implemented in pure Python
SCons: software building tools

interactive interpreter

IPython: a feature-rich tool
bpython: A rich interface Python parser
ptpython: High-level interactive Python parser

Command line related

Command line tools

asciimatics: cross-platform, full-screen terminal library
cement: Python’s command-line programming framework
click: A package for creating beautiful command line interfaces through combinations
cliff: a framework for creating command line programs
clint: Python command line program tool
colorama: cross-platform colored terminal text
docopt: Python-style command line argument parser
Gooey: Turn a command line program into a GUI program
python-prompt-toolkit: library for building powerful interactive command line programs
python-fire: a library produced by Google for building command line interfaces
Pythonpy: execute any Python instruction directly from the command line
Clime: A CLI command program that can convert any module into multiple
docopt: Python command line argument parser
pycli: command line application
rainbowstream: Twitter client terminal
argparse: tool for writing command line scripts
pyHook: A Python-based “hook” library
pstuil: a cross-platform process library that facilitates access and control of the system

Command line advanced tools

aws-cli: Common command line interface for Amazon Web Services
bashplotlib: plotting in the terminal
caniusepython3: Determine which project prevents perfect porting of code to Python3
cookiecutter: A command line tool for creating projects from cookiecutters
doitlive: Tool for live presentations in the terminal
pyftpdlib: Extremely fast and extensible Python FTP service library
howdoi: Get instant answers to your programming questions via the command line
httpie: Command line HTTP client
PathPicker: Pick files from bash output
percol: Adding interactive selection capabilities to the UNIX shell's traditional pipe concept
SAWS: an enhanced version of the AWS command line
thefuck: Fix previous command line instructions
mycli: MySQL command line client
pgcli: Postgres command line tool
try: a simple command line tool for trying out python libraries

third party

API

apache-libcloud: Python library designed for various clouds
boto: Python interface to Amazon Web Services
django-wordpress: WordPress combined with Django
facebook-sdk: Python SDK for the Facebook platform
facepy：Facebook's Graph API
gmail: Python interface to Gmail
google-api-python-client: Google APIs client library for Python
gspread: Python API for Google Spreadsheets
twython: A wrapper for the Twitter API

foreign function interface

cffi: Foreign function interface used to call C code
ctypes: Another foreign function interface for calling C code
PyCUDA: wrapper for Nvidia CUDA API
SWIG: Simplified Encapsulation and Interface Generator

other

MapReduce

dpark: Python version of Spark
dumbo: allows people to easily write and run Hadoop programs
luigi: building complex pipelines for batch jobs
mrjob: Run MapReduce jobs on Hadoop or Amazon Web Services
PySpark：Spark's Python API
streamparse: Run Python code against streams of fact data

functional programming

CyToolz: Cython implementation of Toolz
fn.py: Functional programming in Python
funcy: cool and practical functional tools
Toolz: A set of functional programming tools for iterators, functions and dictionaries

compatibility

Python-Future: The missing compatibility layer between Python 2 and Python 3
Python-Modernize: Modernize Python code for eventual migration to Python 3
Six: Compatibility Tool for Python 2 and 3

Editor plugin

Elpy: Emacs Python development environment
SublimeJEDI: A Sublime Text plug-in for using the auto-completion library Jedi
Anaconda: Anaconda turns Sublime Text 3 into a full-featured Python IDE
YouCompleteMe: Introducing a Jedi-based Python auto-completion engine
Jedi-vim: binding Vim and Jedi autocompletion library
Python-mode: Turn Vim into a Python IDE
PTVS: Python Tools for Visual Studio

Automated chat tool

Errbot: Simple and popular chatbot tool

financial data

Tushare: an open source tool that can provide free financial data on stocks, funds, futures, Hong Kong stocks, etc.
Ta-Lib: Financial data technical analysis library
AkSHare: A great free financial data platform

Algorithms and Design Patterns

algorithms: a Python algorithm module
python-patterns: A collection of Python design patterns
sortedcontainers: SortedList, SortedDict and SortedSet types

Miscellaneous

blinker: A fast in-process signal/event dispatch system for Python
itsdangerous: a series of auxiliary tools used to transfer trusted data into untrusted environments
pluginbase: a simple but flexible Python plugin system
Pychievements: A Python framework for creating and tracking achievements
Tryton: A universal business framework