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 certifi

Mozilla's SSL Certs.

29,793,968
6th boto

Amazon Web Services Library

29,024,019
7th wincertstore

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

26,503,627
8th pip

pip installs packages. Python packages. An easy_install replacement

24,972,521
9th six

Python 2 and 3 compatibility utilities

23,669,314
10th pbr

Python Build Reasonableness

22,740,874
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

16,297,644
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 pyasn1

ASN.1 library for Python

12,546,586
22nd Django

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

12,143,729
23rd pycrypto

Cryptographic modules for Python.

12,052,795
24th coverage

Code coverage measurement for Python

11,779,586
25th psycopg2

Python-PostgreSQL Database Adapter

11,778,054
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 rsa

Pure-Python RSA implementation

9,563,163
31st Paste

Tools for using a Web Server Gateway Interface stack

9,493,510
32nd awscli

Universal Command Line Environment for AWS.

9,446,866
33rd ssl

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

9,377,425
34th jmespath

JSON Matching Expressions

9,359,685
35th supervisor

A system for controlling process state under UNIX

9,301,958
36th selenium

Python bindings for Selenium

9,272,469
37th SQLAlchemy

Database Abstraction Library

9,202,427
38th bcdoc

ReST document generation tools for botocore.

9,107,086
39th meld3

meld3 is an HTML/XML templating engine.

8,681,333
40th redis

Python client for Redis key-value store

8,586,176
41st ecdsa

ECDSA cryptographic signature library (pure python)

8,504,861
42nd Werkzeug

The Swiss Army knife of Python web development

8,374,558
43rd cffi

Foreign Function Interface for Python calling C code.

8,207,910
44th PasteDeploy

Load, configure, and compose WSGI applications and servers

7,618,728
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

7,013,999
50th pycparser

C parser in Python

6,804,448