PyPI Ranking home
1st distribute

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

33,684,363
2nd virtualenv

Virtual Python Environment builder

29,953,076
3rd certifi

Mozilla's SSL Certs.

26,150,879
4th setuptools

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

25,817,864
5th boto

Amazon Web Services Library

24,823,588
6th requests

Python HTTP for Humans.

24,437,390
7th wincertstore

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

24,146,204
8th pip

pip installs packages. Python packages. An easy_install replacement

20,016,210
9th lxml

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

18,205,245
10th pbr

Python Build Reasonableness

17,707,472
11th nose

nose extends unittest to make testing easier

17,678,205
12th six

Python 2 and 3 compatibility utilities

17,457,112
13th python-dateutil

Extensions to the standard python 3.0+ datetime module

17,076,904
14th simplejson

Simple, fast, extensible JSON encoder/decoder for Python

14,995,268
15th pika

Pika Python AMQP Client Library

13,557,072
16th Jinja2

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

13,470,898
17th MarkupSafe

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

11,532,706
18th pytz

World timezone definitions, modern and historical

10,701,108
19th docutils

Docutils -- Python Documentation Utilities

10,681,186
20th Django

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

10,250,378
21st PyYAML

YAML parser and emitter for Python

9,879,722
22nd coverage

Code coverage measurement for Python

9,512,804
23rd zc.buildout

System for managing development buildouts

9,345,794
24th Paste

Tools for using a Web Server Gateway Interface stack

8,951,986
25th pycrypto

Cryptographic modules for Python.

8,907,260
26th ssl

SSL wrapper for socket objects (2.3, 2.4, 2.5 compatible)

8,829,100
27th paramiko

SSH2 protocol library

8,534,400
28th supervisor

A system for controlling process state under UNIX

8,221,071
29th pyasn1

ASN.1 library for Python

7,937,678
30th meld3

meld3 is an HTML/XML templating engine.

7,767,341
31st selenium

Python bindings for Selenium

7,574,384
32nd PasteDeploy

Load, configure, and compose WSGI applications and servers

7,309,133
33rd redis

Python client for Redis key-value store

7,120,938
34th psycopg2

Python-PostgreSQL Database Adapter

7,018,034
35th Werkzeug

The Swiss Army knife of Python web development

7,014,301
36th botocore

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

6,856,455
37th colorama

Cross-platform colored terminal text.

6,822,132
38th awscli

Universal Command Line Environment for AWS.

6,667,195
39th SQLAlchemy

Database Abstraction Library

6,655,867
40th jmespath

JSON Matching Expressions

6,575,850
41st ecdsa

ECDSA cryptographic signature library (pure python)

6,550,177
42nd bcdoc

ReST document generation tools for botocore.

6,474,024
43rd Flask

A microframework based on Werkzeug, Jinja2 and good intentions

6,244,654
44th MySQL-python

Python interface to MySQL

6,098,661
45th carbon

Backend data caching and persistence daemon for Graphite

6,046,091
46th rsa

Pure-Python RSA implementation

6,024,265
47th pymongo

Python driver for MongoDB

6,004,234
48th cffi

Foreign Function Interface for Python calling C code.

5,613,005
49th graphite-web

Enterprise scalable realtime graphing

5,566,099
50th httplib2

A comprehensive HTTP client library.

5,290,849