PyPI Ranking home
1st distribute

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

36,480,540
2nd virtualenv

Virtual Python Environment builder

32,591,771
3rd setuptools

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

31,086,165
4th requests

Python HTTP for Humans.

29,283,850
5th certifi

Mozilla's SSL Certs.

28,271,429
6th boto

Amazon Web Services Library

28,166,254
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

24,068,776
9th six

Python 2 and 3 compatibility utilities

21,289,715
10th pbr

Python Build Reasonableness

20,756,750
11th python-dateutil

Extensions to the standard python 3.0+ datetime module

20,429,354
12th lxml

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

19,640,415
13th nose

nose extends unittest to make testing easier

19,570,796
14th simplejson

Simple, fast, extensible JSON encoder/decoder for Python

17,914,269
15th Jinja2

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

15,804,044
16th pika

Pika Python AMQP Client Library

15,517,162
17th MarkupSafe

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

13,887,415
18th docutils

Docutils -- Python Documentation Utilities

13,713,567
19th pytz

World timezone definitions, modern and historical

12,856,215
20th PyYAML

YAML parser and emitter for Python

12,620,936
21st Django

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

11,717,813
22nd psycopg2

Python-PostgreSQL Database Adapter

11,458,725
23rd pycrypto

Cryptographic modules for Python.

11,452,019
24th coverage

Code coverage measurement for Python

11,267,361
25th pyasn1

ASN.1 library for Python

10,963,738
26th paramiko

SSH2 protocol library

9,930,417
27th zc.buildout

System for managing development buildouts

9,861,413
28th Paste

Tools for using a Web Server Gateway Interface stack

9,384,108
29th ssl

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

9,199,730
30th botocore

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

9,100,925
31st supervisor

A system for controlling process state under UNIX

9,062,639
32nd colorama

Cross-platform colored terminal text.

9,018,578
33rd SQLAlchemy

Database Abstraction Library

8,916,300
34th selenium

Python bindings for Selenium

8,904,542
35th awscli

Universal Command Line Environment for AWS.

8,870,435
36th jmespath

JSON Matching Expressions

8,770,718
37th meld3

meld3 is an HTML/XML templating engine.

8,501,390
38th rsa

Pure-Python RSA implementation

8,360,229
39th redis

Python client for Redis key-value store

8,281,679
40th Werkzeug

The Swiss Army knife of Python web development

8,099,593
41st bcdoc

ReST document generation tools for botocore.

8,047,214
42nd ecdsa

ECDSA cryptographic signature library (pure python)

7,904,351
43rd PasteDeploy

Load, configure, and compose WSGI applications and servers

7,555,741
44th carbon

Backend data caching and persistence daemon for Graphite

7,242,240
45th Flask

A microframework based on Werkzeug, Jinja2 and good intentions

7,186,909
46th MySQL-python

Python interface to MySQL

7,043,414
47th pymongo

Python driver for MongoDB

6,976,584
48th cffi

Foreign Function Interface for Python calling C code.

6,973,508
49th graphite-web

Enterprise scalable realtime graphing

6,585,245
50th mock

A Python Mocking and Patching Library for Testing

6,273,443