PyPI Ranking home
1st distribute

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

35,255,215
2nd virtualenv

Virtual Python Environment builder

31,397,614
3rd setuptools

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

28,376,074
4th certifi

Mozilla's SSL Certs.

27,885,649
5th requests

Python HTTP for Humans.

27,041,710
6th boto

Amazon Web Services Library

26,554,432
7th wincertstore

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

25,101,988
8th pip

pip installs packages. Python packages. An easy_install replacement

22,847,580
9th six

Python 2 and 3 compatibility utilities

20,641,595
10th pbr

Python Build Reasonableness

20,086,230
11th python-dateutil

Extensions to the standard python 3.0+ datetime module

19,354,137
12th lxml

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

19,109,371
13th nose

nose extends unittest to make testing easier

18,800,610
14th simplejson

Simple, fast, extensible JSON encoder/decoder for Python

16,637,363
15th pika

Pika Python AMQP Client Library

15,272,830
16th Jinja2

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

14,707,492
17th MarkupSafe

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

12,785,936
18th docutils

Docutils -- Python Documentation Utilities

12,392,688
19th pytz

World timezone definitions, modern and historical

11,811,225
20th PyYAML

YAML parser and emitter for Python

11,432,517
21st Django

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

11,055,775
22nd pycrypto

Cryptographic modules for Python.

10,411,413
23rd pyasn1

ASN.1 library for Python

10,411,021
24th coverage

Code coverage measurement for Python

10,406,808
25th zc.buildout

System for managing development buildouts

9,654,071
26th paramiko

SSH2 protocol library

9,364,913
27th Paste

Tools for using a Web Server Gateway Interface stack

9,173,997
28th ssl

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

9,086,491
29th supervisor

A system for controlling process state under UNIX

8,623,562
30th selenium

Python bindings for Selenium

8,305,827
31st colorama

Cross-platform colored terminal text.

8,193,267
32nd botocore

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

8,157,189
33rd psycopg2

Python-PostgreSQL Database Adapter

8,134,634
34th meld3

meld3 is an HTML/XML templating engine.

8,105,554
35th rsa

Pure-Python RSA implementation

7,966,608
36th awscli

Universal Command Line Environment for AWS.

7,941,095
37th jmespath

JSON Matching Expressions

7,849,368
38th SQLAlchemy

Database Abstraction Library

7,772,336
39th redis

Python client for Redis key-value store

7,767,550
40th bcdoc

ReST document generation tools for botocore.

7,689,118
41st ecdsa

ECDSA cryptographic signature library (pure python)

7,672,812
42nd Werkzeug

The Swiss Army knife of Python web development

7,572,886
43rd PasteDeploy

Load, configure, and compose WSGI applications and servers

7,432,707
44th carbon

Backend data caching and persistence daemon for Graphite

6,850,816
45th Flask

A microframework based on Werkzeug, Jinja2 and good intentions

6,757,726
46th MySQL-python

Python interface to MySQL

6,596,634
47th cffi

Foreign Function Interface for Python calling C code.

6,561,760
48th pymongo

Python driver for MongoDB

6,523,789
49th graphite-web

Enterprise scalable realtime graphing

6,427,961
50th httplib2

A comprehensive HTTP client library.

5,854,029