PyPI Ranking home
1st distribute

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

32,518,215
2nd virtualenv

Virtual Python Environment builder

28,916,651
3rd certifi

Mozilla's SSL Certs.

25,775,209
4th setuptools

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

24,408,886
5th wincertstore

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

23,589,395
6th boto

Amazon Web Services Library

23,351,665
7th requests

Python HTTP for Humans.

22,735,357
8th pip

pip installs packages. Python packages. An easy_install replacement

18,953,215
9th lxml

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

17,589,863
10th pbr

Python Build Reasonableness

17,127,684
11th six

Python 2 and 3 compatibility utilities

16,647,150
12th nose

nose extends unittest to make testing easier

16,633,401
13th python-dateutil

Extensions to the standard python 3.0+ datetime module

15,405,887
14th simplejson

Simple, fast, extensible JSON encoder/decoder for Python

13,826,982
15th Jinja2

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

12,524,717
16th pika

Pika Python AMQP Client Library

12,490,969
17th MarkupSafe

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

10,565,330
18th pytz

World timezone definitions, modern and historical

9,833,426
19th Django

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

9,663,747
20th docutils

Docutils -- Python Documentation Utilities

9,406,650
21st zc.buildout

System for managing development buildouts

9,114,569
22nd coverage

Code coverage measurement for Python

8,818,993
23rd ssl

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

8,757,768
24th Paste

Tools for using a Web Server Gateway Interface stack

8,741,912
25th PyYAML

YAML parser and emitter for Python

8,696,166
26th paramiko

SSH2 protocol library

8,042,791
27th pycrypto

Cryptographic modules for Python.

7,872,156
28th supervisor

A system for controlling process state under UNIX

7,869,367
29th meld3

meld3 is an HTML/XML templating engine.

7,515,971
30th pyasn1

ASN.1 library for Python

7,341,558
31st PasteDeploy

Load, configure, and compose WSGI applications and servers

7,187,821
32nd selenium

Python bindings for Selenium

7,042,616
33rd redis

Python client for Redis key-value store

6,626,394
34th psycopg2

Python-PostgreSQL Database Adapter

6,594,572
35th Werkzeug

The Swiss Army knife of Python web development

6,559,909
36th SQLAlchemy

Database Abstraction Library

6,253,974
37th colorama

Cross-platform colored terminal text.

5,891,844
38th Flask

A microframework based on Werkzeug, Jinja2 and good intentions

5,857,539
39th botocore

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

5,827,552
40th ecdsa

ECDSA cryptographic signature library (pure python)

5,803,666
41st awscli

Universal Command Line Environment for AWS.

5,655,367
42nd pymongo

Python driver for MongoDB

5,637,533
43rd MySQL-python

Python interface to MySQL

5,618,329
44th jmespath

JSON Matching Expressions

5,576,868
45th bcdoc

ReST document generation tools for botocore.

5,511,079
46th carbon

Backend data caching and persistence daemon for Graphite

5,498,157
47th rsa

Pure-Python RSA implementation

5,492,257
48th graphite-web

Enterprise scalable realtime graphing

5,319,622
49th cffi

Foreign Function Interface for Python calling C code.

5,015,669
50th httplib2

A comprehensive HTTP client library.

4,909,662