PyPI Ranking home
1st simplejson

Simple, fast, extensible JSON encoder/decoder for Python

3,671,745
2nd setuptools

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

670,706
3rd requests

Python HTTP for Humans.

502,937
4th six

Python 2 and 3 compatibility utilities

494,561
5th pip

pip installs packages. Python packages. An easy_install replacement

425,621
6th pbr

Python Build Reasonableness

361,247
7th pyasn1

ASN.1 library for Python

323,691
8th docutils

Docutils -- Python Documentation Utilities

322,133
9th virtualenv

Virtual Python Environment builder

293,506
10th MarkupSafe

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

277,694
11th boto

Amazon Web Services Library

277,154
12th python-dateutil

Extensions to the standard python 3.0+ datetime module

273,900
13th certifi

Mozilla's SSL Certs.

270,734
14th Jinja2

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

269,383
15th PyYAML

YAML parser and emitter for Python

261,317
16th rsa

Pure-Python RSA implementation

257,621
17th pycparser

C parser in Python

254,417
18th pytz

World timezone definitions, modern and historical

248,289
19th pycrypto

Cryptographic modules for Python.

240,482
20th awscli

Universal Command Line Environment for AWS.

238,268
21st botocore

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

237,897
22nd wincertstore

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

228,646
23rd cffi

Foreign Function Interface for Python calling C code.

221,385
24th jmespath

JSON Matching Expressions

209,966
25th colorama

Cross-platform colored terminal text.

200,355
26th distribute

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

196,028
27th nose

nose extends unittest to make testing easier

194,871
28th bcdoc

ReST document generation tools for botocore.

187,006
29th coverage

Code coverage measurement for Python

184,760
30th setuptools-git

Setuptools revision control system plugin for Git

164,373
31st Django

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

151,926
32nd psutil

A process utilities module for Python

151,393
33rd selenium

Python bindings for Selenium

143,425
34th pep8

Python style guide checker

140,309
35th Babel

Internationalization utilities

138,365
36th cryptography

cryptography is a package which provides cryptographic recipes and primitives to Python developers.

137,311
37th psycopg2

Python-PostgreSQL Database Adapter

135,192
38th mock

A Python Mocking and Patching Library for Testing

130,050
39th SQLAlchemy

Database Abstraction Library

126,399
40th enum34

Python 3.4 Enum backported to 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4

126,028
41st lxml

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

124,115
42nd paramiko

SSH2 protocol library

123,469
43rd ecdsa

ECDSA cryptographic signature library (pure python)

122,270
44th pyOpenSSL

Python wrapper module around the OpenSSL library

121,913
45th docopt

Pythonic option parser, that will make you smile

120,073
46th pymongo

Python driver for MongoDB

118,848
47th redis

Python client for Redis key-value store

117,433
48th httplib2

A comprehensive HTTP client library.

117,258
49th argparse

Python command-line parsing library

114,707
50th pika

Pika Python AMQP Client Library

112,647