PyPI Ranking home
1st simplejson

Simple, fast, extensible JSON encoder/decoder for Python

1,699,833
2nd setuptools

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

892,909
3rd six

Python 2 and 3 compatibility utilities

553,689
4th requests

Python HTTP for Humans.

430,049
5th python-dateutil

Extensions to the standard python 3.0+ datetime module

420,393
6th pyasn1

ASN.1 library for Python

392,859
7th virtualenv

Virtual Python Environment builder

374,106
8th rsa

Pure-Python RSA implementation

350,491
9th docutils

Docutils -- Python Documentation Utilities

349,421
10th pytz

World timezone definitions, modern and historical

336,098
11th MarkupSafe

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

314,564
12th Jinja2

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

310,549
13th pbr

Python Build Reasonableness

305,696
14th PyYAML

YAML parser and emitter for Python

287,785
15th pip

pip installs packages. Python packages. An easy_install replacement

261,650
16th pycrypto

Cryptographic modules for Python.

241,830
17th certifi

Mozilla's SSL Certs.

239,265
18th pycparser

C parser in Python

235,273
19th botocore

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

225,074
20th cffi

Foreign Function Interface for Python calling C code.

223,436
21st coverage

Code coverage measurement for Python

213,118
22nd mock

A Python Mocking and Patching Library for Testing

210,691
23rd wheel

A built-package format for Python.

209,401
24th wincertstore

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

207,595
25th psycopg2

Python-PostgreSQL Database Adapter

193,208
26th jmespath

JSON Matching Expressions

177,544
27th paramiko

SSH2 protocol library

168,678
28th nose

nose extends unittest to make testing easier

166,394
29th awscli

Universal Command Line Environment for AWS.

166,221
30th uritemplate

URI Templates

165,628
31st Django

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

162,237
32nd SQLAlchemy

Database Abstraction Library

161,552
33rd redis

Python client for Redis key-value store

158,888
34th psutil

A process utilities module for Python

158,662
35th statsd

A simple statsd client.

151,399
36th pep8

Python style guide checker

150,302
37th pyOpenSSL

Python wrapper module around the OpenSSL library

142,607
38th py

library with cross-python path, ini-parsing, io, code, log facilities

137,194
39th Werkzeug

The Swiss Army knife of Python web development

136,868
40th colorama

Cross-platform colored terminal text.

136,742
41st httplib2

A comprehensive HTTP client library.

132,902
42nd anyjson

Wraps the best available JSON implementation available in a common interface

125,604
43rd ecdsa

ECDSA cryptographic signature library (pure python)

125,303
44th Flask

A microframework based on Werkzeug, Jinja2 and good intentions

122,684
45th google-api-python-client

Google API Client Library for Python

120,650
46th argparse

Python command-line parsing library

116,356
47th pymongo

Python driver for MongoDB

115,988
48th boto

Amazon Web Services Library

106,889
49th greenlet

Lightweight in-process concurrent programming

104,282
50th ipaddress

IPv4/IPv6 manipulation library

103,037