PyPI Ranking home
1st distribute

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

37,096,313
2nd virtualenv

Virtual Python Environment builder

33,342,682
3rd setuptools

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

32,783,829
4th requests

Python HTTP for Humans.

30,576,375
5th boto

Amazon Web Services Library

29,024,019
6th certifi

Mozilla's SSL Certs.

28,959,771
7th wincertstore

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

25,812,400
8th pip

pip installs packages. Python packages. An easy_install replacement

24,972,521
9th six

Python 2 and 3 compatibility utilities

22,443,392
10th pbr

Python Build Reasonableness

21,770,241
11th python-dateutil

Extensions to the standard python 3.0+ datetime module

21,127,742
12th nose

nose extends unittest to make testing easier

20,142,041
13th simplejson

Simple, fast, extensible JSON encoder/decoder for Python

20,078,410
14th lxml

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

19,921,957
15th Jinja2

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

16,483,696
16th pika

Pika Python AMQP Client Library

15,912,059
17th MarkupSafe

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

14,569,444
18th docutils

Docutils -- Python Documentation Utilities

14,554,070
19th pytz

World timezone definitions, modern and historical

13,506,971
20th PyYAML

YAML parser and emitter for Python

13,327,340
21st Django

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

12,143,729
22nd pycrypto

Cryptographic modules for Python.

12,052,795
23rd coverage

Code coverage measurement for Python

11,779,586
24th psycopg2

Python-PostgreSQL Database Adapter

11,778,054
25th pyasn1

ASN.1 library for Python

11,751,811
26th paramiko

SSH2 protocol library

10,248,571
27th zc.buildout

System for managing development buildouts

9,976,959
28th botocore

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

9,711,350
29th colorama

Cross-platform colored terminal text.

9,609,371
30th Paste

Tools for using a Web Server Gateway Interface stack

9,493,510
31st jmespath

JSON Matching Expressions

9,359,685
32nd supervisor

A system for controlling process state under UNIX

9,301,958
33rd ssl

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

9,290,756
34th selenium

Python bindings for Selenium

9,272,469
35th SQLAlchemy

Database Abstraction Library

9,202,427
36th rsa

Pure-Python RSA implementation

8,947,308
37th awscli

Universal Command Line Environment for AWS.

8,870,435
38th meld3

meld3 is an HTML/XML templating engine.

8,681,333
39th redis

Python client for Redis key-value store

8,586,176
40th bcdoc

ReST document generation tools for botocore.

8,569,231
41st Werkzeug

The Swiss Army knife of Python web development

8,374,558
42nd ecdsa

ECDSA cryptographic signature library (pure python)

8,205,225
43rd PasteDeploy

Load, configure, and compose WSGI applications and servers

7,618,728
44th cffi

Foreign Function Interface for Python calling C code.

7,610,017
45th carbon

Backend data caching and persistence daemon for Graphite

7,508,380
46th Flask

A microframework based on Werkzeug, Jinja2 and good intentions

7,440,923
47th MySQL-python

Python interface to MySQL

7,294,272
48th pymongo

Python driver for MongoDB

7,276,690
49th graphite-web

Enterprise scalable realtime graphing

6,795,309
50th mock

A Python Mocking and Patching Library for Testing

6,618,643