PyPI Ranking home
1st pip

pip installs packages. Python packages. An easy_install replacement

548,579
2nd setuptools

Download, build, install, upgrade, and uninstall Python packages -- easily!

440,060
3rd requests

Python HTTP for Humans.

425,551
4th python-dateutil

Extensions to the standard python 3.0+ datetime module

405,958
5th six

Python 2 and 3 compatibility utilities

405,754
6th pyasn1

ASN.1 library for Python

309,344
7th pbr

Python Build Reasonableness

287,015
8th docutils

Docutils -- Python Documentation Utilities

286,810
9th simplejson

Simple, fast, extensible JSON encoder/decoder for Python

271,358
10th boto

Amazon Web Services Library

268,357
11th PyYAML

YAML parser and emitter for Python

255,445
12th distribute

Easily download, build, install, upgrade, and uninstall Python packages

254,830
13th rsa

Pure-Python RSA implementation

238,196
14th pycrypto

Cryptographic modules for Python.

235,545
15th certifi

Mozilla's SSL Certs.

222,319
16th virtualenv

Virtual Python Environment builder

217,914
17th botocore

Low-level, data-driven core of boto 3.

213,909
18th awscli

Universal Command Line Environment for AWS.

213,234
19th jmespath

JSON Matching Expressions

209,741
20th MarkupSafe

Implements a XML/HTML/XHTML Markup safe string for Python

206,000
21st bcdoc

ReST document generation tools for botocore.

204,026
22nd Jinja2

A small but fast and easy to use stand-alone template engine written in pure python.

203,509
23rd ecdsa

ECDSA cryptographic signature library (pure python)

202,160
24th setuptools-git

Setuptools revision control system plugin for Git

187,150
25th pytz

World timezone definitions, modern and historical

185,175
26th colorama

Cross-platform colored terminal text.

179,538
27th nose

nose extends unittest to make testing easier

177,234
28th argparse

Python command-line parsing library

168,910
29th wincertstore

Python module to extract CA and CRL certs from Windows' cert store (ctypes based).

164,028
30th cffi

Foreign Function Interface for Python calling C code.

148,367
31st pika

Pika Python AMQP Client Library

147,565
32nd coverage

Code coverage measurement for Python

146,942
33rd Django

A high-level Python Web framework that encourages rapid development and clean, pragmatic design.

145,369
34th pycparser

C parser in Python

139,948
35th paramiko

SSH2 protocol library

136,489
36th lxml

Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API.

133,311
37th selenium

Python bindings for Selenium

121,843
38th carbon

Backend data caching and persistence daemon for Graphite

118,499
39th redis

Python client for Redis key-value store

111,167
40th psutil

A process utilities module for Python

99,532
41st graphite-web

Enterprise scalable realtime graphing

96,246
42nd SQLAlchemy

Database Abstraction Library

95,393
43rd MySQL-python

Python interface to MySQL

95,127
44th docopt

Pythonic option parser, that will make you smile

94,633
45th Werkzeug

The Swiss Army knife of Python web development

93,390
46th mock

A Python Mocking and Patching Library for Testing

91,329
47th psycopg2

Python-PostgreSQL Database Adapter

90,958
48th Flask

A microframework based on Werkzeug, Jinja2 and good intentions

88,518
49th pep8

Python style guide checker

84,838
50th ordereddict

A drop-in substitute for Py2.7's new collections.OrderedDict that works in Python 2.4-2.6.

84,533