PyPI Ranking home
1st distribute

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

37,746,679
2nd setuptools

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

34,604,317
3rd virtualenv

Virtual Python Environment builder

34,139,343
4th requests

Python HTTP for Humans.

31,941,490
5th simplejson

Simple, fast, extensible JSON encoder/decoder for Python

30,590,531
6th certifi

Mozilla's SSL Certs.

30,528,819
7th boto

Amazon Web Services Library

29,832,939
8th wincertstore

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

27,124,239
9th pip

pip installs packages. Python packages. An easy_install replacement

25,840,477
10th six

Python 2 and 3 compatibility utilities

25,011,694
11th pbr

Python Build Reasonableness

23,721,402
12th python-dateutil

Extensions to the standard python 3.0+ datetime module

21,871,186
13th nose

nose extends unittest to make testing easier

20,670,978
14th lxml

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

20,248,649
15th Jinja2

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

17,214,880
16th pika

Pika Python AMQP Client Library

16,603,402
17th docutils

Docutils -- Python Documentation Utilities

15,428,431
18th MarkupSafe

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

15,323,185
19th pytz

World timezone definitions, modern and historical

14,180,899
20th PyYAML

YAML parser and emitter for Python

14,036,631
21st pyasn1

ASN.1 library for Python

13,425,177
22nd pycrypto

Cryptographic modules for Python.

12,705,534
23rd Django

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

12,556,102
24th coverage

Code coverage measurement for Python

12,281,079
25th psycopg2

Python-PostgreSQL Database Adapter

12,145,004
26th colorama

Cross-platform colored terminal text.

10,816,129
27th paramiko

SSH2 protocol library

10,583,702
28th botocore

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

10,357,071
29th rsa

Pure-Python RSA implementation

10,262,422
30th zc.buildout

System for managing development buildouts

10,112,580
31st awscli

Universal Command Line Environment for AWS.

10,093,595
32nd jmespath

JSON Matching Expressions

9,929,595
33rd selenium

Python bindings for Selenium

9,661,768
34th bcdoc

ReST document generation tools for botocore.

9,614,674
35th Paste

Tools for using a Web Server Gateway Interface stack

9,591,739
36th SQLAlchemy

Database Abstraction Library

9,545,512
37th supervisor

A system for controlling process state under UNIX

9,533,943
38th ssl

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

9,444,354
39th redis

Python client for Redis key-value store

8,904,924
40th meld3

meld3 is an HTML/XML templating engine.

8,852,238
41st ecdsa

ECDSA cryptographic signature library (pure python)

8,836,738
42nd cffi

Foreign Function Interface for Python calling C code.

8,808,813
43rd Werkzeug

The Swiss Army knife of Python web development

8,675,068
44th carbon

Backend data caching and persistence daemon for Graphite

8,042,209
45th Flask

A microframework based on Werkzeug, Jinja2 and good intentions

7,721,065
46th PasteDeploy

Load, configure, and compose WSGI applications and servers

7,690,752
47th pymongo

Python driver for MongoDB

7,599,278
48th MySQL-python

Python interface to MySQL

7,559,220
49th pycparser

C parser in Python

7,495,011
50th graphite-web

Enterprise scalable realtime graphing

7,248,162