PyPI Ranking home
1st distribute

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

34,778,812
2nd virtualenv

Virtual Python Environment builder

31,012,622
3rd certifi

Mozilla's SSL Certs.

27,504,125
4th setuptools

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

27,419,324
5th requests

Python HTTP for Humans.

26,224,387
6th boto

Amazon Web Services Library

25,941,230
7th wincertstore

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

24,853,922
8th pip

pip installs packages. Python packages. An easy_install replacement

22,146,384
9th six

Python 2 and 3 compatibility utilities

19,954,327
10th pbr

Python Build Reasonableness

19,497,652
11th lxml

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

18,884,970
12th python-dateutil

Extensions to the standard python 3.0+ datetime module

18,816,283
13th nose

nose extends unittest to make testing easier

18,481,072
14th simplejson

Simple, fast, extensible JSON encoder/decoder for Python

16,103,809
15th pika

Pika Python AMQP Client Library

15,042,513
16th Jinja2

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

14,277,724
17th MarkupSafe

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

12,352,481
18th docutils

Docutils -- Python Documentation Utilities

11,817,377
19th pytz

World timezone definitions, modern and historical

11,418,338
20th PyYAML

YAML parser and emitter for Python

10,948,315
21st Django

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

10,783,974
22nd coverage

Code coverage measurement for Python

10,094,432
23rd pycrypto

Cryptographic modules for Python.

9,943,873
24th pyasn1

ASN.1 library for Python

9,825,134
25th zc.buildout

System for managing development buildouts

9,570,757
26th paramiko

SSH2 protocol library

9,125,679
27th Paste

Tools for using a Web Server Gateway Interface stack

9,097,316
28th ssl

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

9,071,813
29th supervisor

A system for controlling process state under UNIX

8,477,754
30th selenium

Python bindings for Selenium

8,092,025
31st meld3

meld3 is an HTML/XML templating engine.

7,976,310
32nd botocore

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

7,747,566
33rd colorama

Cross-platform colored terminal text.

7,652,759
34th redis

Python client for Redis key-value store

7,559,024
35th awscli

Universal Command Line Environment for AWS.

7,539,440
36th rsa

Pure-Python RSA implementation

7,531,926
37th jmespath

JSON Matching Expressions

7,451,089
38th PasteDeploy

Load, configure, and compose WSGI applications and servers

7,385,093
39th ecdsa

ECDSA cryptographic signature library (pure python)

7,384,279
40th Werkzeug

The Swiss Army knife of Python web development

7,382,998
41st psycopg2

Python-PostgreSQL Database Adapter

7,365,937
42nd bcdoc

ReST document generation tools for botocore.

7,310,112
43rd SQLAlchemy

Database Abstraction Library

7,030,015
44th carbon

Backend data caching and persistence daemon for Graphite

6,597,853
45th Flask

A microframework based on Werkzeug, Jinja2 and good intentions

6,581,386
46th MySQL-python

Python interface to MySQL

6,454,394
47th pymongo

Python driver for MongoDB

6,338,584
48th graphite-web

Enterprise scalable realtime graphing

6,276,959
49th cffi

Foreign Function Interface for Python calling C code.

6,234,590
50th httplib2

A comprehensive HTTP client library.

5,617,274