Packages — P (Page 10 of 25)

python-attrs 18.2.0 — Attributes without boilerplate

attrs is a Python package with class decorators that ease the chores of implementing the most common attribute-related object protocols.

python-attrs-bootstrap 17.4.0 — Attributes without boilerplate

attrs is a Python package with class decorators that ease the chores of implementing the most common attribute-related object protocols.

python-autograd 0.0.0-0.442205d — Efficiently computes derivatives of NumPy code

Autograd can automatically differentiate native Python and NumPy code. It can handle a large subset of Python's features, including loops, ifs, recursion and closures, and it can even take derivatives of derivatives of derivatives. It supports reverse-mode differentiation (a.k.a. backpropagation), which means it can efficiently take gradients of scalar-valued functions with respect to array-valued arguments, as well as forward-mode differentiation, and the two can be composed arbitrarily. The main intended application of Autograd is gradient-based optimization.

python-automat 0.6.0 — Self-service finite-state machines

Automat is a library for concise, idiomatic Python expression of finite-state automata (particularly deterministic finite-state transducers).

python-autopep8 1.3.5 — Format Python code according to the PEP 8 style guide

autopep8 automatically formats Python code to conform to the PEP 8 style guide. It uses the pycodestyle utility to determine what parts of the code needs to be formatted. autopep8 is capable of fixing most of the formatting issues that can be reported by pycodestyle.

python-axolotl 0.1.39 — Python port of libaxolotl-android

This is a python port of libaxolotl-android. This is a ratcheting forward secrecy protocol that works in synchronous and asynchronous messaging environments.

python-axolotl-curve25519 0.1 — Python wrapper for curve25519 library

This is a python wrapper for the curve25519 library with ed25519 signatures. The C code was pulled from libaxolotl-android. At the moment this wrapper is meant for use by python-axolotl.

python-babel 2.6.0 — Tools for internationalizing Python applications

Babel is composed of two major parts: - tools to build and work with gettext message catalogs - a Python interface to the CLDR (Common Locale Data Repository), providing access to various locale display names, localized number and date formatting, etc.

python-backpack 0.1 — Utilities for working with Python collections

Backpack provides some useful utilities for working with collections of data.

python-backports-abc 0.5 — Backport of additions to the '' module

Python-backports-abc provides a backport of additions to the '' module in Python-3.5.

python-backports-csv 1.0.5 — Backport of Python 3's csv module for Python 2

Provides a backport of Python 3's csv module for parsing comma separated values. The API of the csv module in Python 2 is drastically different from the csv module in Python 3. This is due, for the most part, to the difference between str in Python 2 and Python 3.

python-bandit 1.4.0 — Security oriented static analyser for python code

Bandit is a tool designed to find common security issues in Python code. To do this Bandit processes each file, builds an AST from it, and runs appropriate plugins against the AST nodes. Once Bandit has finished scanning all the files it generates a report.

python-base58 1.0.0 — Base58 and Base58Check implementation

Base58 and Base58Check implementation compatible with what is used by the Bitcoin network.

python-bcrypt 3.1.6 — Modern password hashing library

Bcrypt is a Python module which provides a password hashing method based on the Blowfish password hashing algorithm, as described in "A Future-Adaptable Password Scheme" by Niels Provos and David Mazieres.

python-beautifulsoup4 4.6.3 — Python screen-scraping library

Beautiful Soup is a Python library designed for rapidly setting up screen-scraping projects. It offers Pythonic idioms for navigating, searching, and modifying a parse tree, providing a toolkit for dissecting a document and extracting what you need. It automatically converts incoming documents to Unicode and outgoing documents to UTF-8.

python-behave-web-api 1.0.6 — Provides testing for JSON APIs with Behave for Python

This package provides testing utility modules for testing JSON APIs with Behave.

python-betamax 0.8.1 — Record HTTP interactions with python-requests

Betamax will record your test suite's HTTP interactions and replay them during future tests. It is designed to work with python-requests.

python-betamax-matchers 0.4.0 — VCR imitation for python-requests

betamax-matchers provides a set of Matchers for Betamax.

python-bigfloat 0.3.0 — Arbitrary precision floating-point arithmetic for Python

This packages provides a Python interface to the MPFR library for multiprecision arithmetic.

python-billiard — Python multiprocessing fork with improvements and bugfixes

Billiard is a fork of the Python 2.7 multiprocessing package. The multiprocessing package itself is a renamed and updated version of R Oudkerk's pyprocessing package. This standalone variant is intended to be compatible with Python 2.4 and 2.5, and will draw its fixes/improvements from python-trunk.

python-binaryornot 0.4.4 — Package to check if a file is binary or text

Ultra-lightweight pure Python package to check if a file is binary or text.

python-biom-format 2.1.7 — Biological Observation Matrix (BIOM) format utilities

The BIOM file format is designed to be a general-use format for representing counts of observations e.g. operational taxonomic units, KEGG orthology groups or lipid types, in one or more biological samples e.g. microbiome samples, genomes, metagenomes.

python-biopython 1.70 — Tools for biological computation in Python

Biopython is a set of tools for biological computation including parsers for bioinformatics files into Python data structures; interfaces to common bioinformatics programs; a standard sequence class and tools for performing common operations on them; code to perform data classification; code for dealing with alignments; code making it easy to split up parallelizable tasks into separate processes; and more.

python-black 18.6b4 — The uncompromising code formatter

Black is the uncompromising Python code formatter.

python-bleach 1.4.3 — Whitelist-based HTML-sanitizing tool

Bleach is an easy whitelist-based HTML-sanitizing tool.

python-blessings 1.6.1 — Python module to manage terminal color, styling, and positioning

Blessings is a pythonic API to manipulate terminal color, styling, and positioning. It provides similar features to curses but avoids some of curses’s limitations: it does not require clearing the whole screen for little changes, provides a scroll-back buffer after the program exits, and avoids styling altogether when the output is redirected to something other than a terminal.

python-blinker 1.4 — Fast, simple object-to-object and broadcast signaling

Blinker provides a fast dispatching system that allows any number of interested parties to subscribe to events, or "signals".

python-blosc 1.5.1 — Python wrapper for the Blosc data compressor library

Blosc is a high performance compressor optimized for binary data. It has been designed to transmit data to the processor cache faster than the traditional, non-compressed, direct memory fetch approach via a memcpy() system call.

Blosc works well for compressing numerical arrays that contains data with relatively low entropy, like sparse data, time series, grids with regular-spaced values, etc.

This Python package wraps the Blosc library.

python-botocore 1.8.43 — Low-level interface to AWS

Botocore is a Python library that provides a low-level interface to the Amazon Web Services (AWS) API.

python-bottle 0.12.13 — WSGI framework for small web-applications.

python-bottle is a WSGI framework for small web-applications.

python-bx-python 0.8.2 — Tools for manipulating biological data

bx-python provides tools for manipulating biological data, particularly multiple sequence alignments.

python-bz2file 0.98 — Read and write bzip2-compressed files

Bz2file is a Python library for reading and writing bzip2-compressed files. It contains a drop-in replacement for the I/O interface in the standard library's bz2 module, including features from the latest development version of CPython that are not available in older releases.

python-cachecontrol 0.11.6 — The httplib2 caching algorithms for use with requests

CacheControl is a port of the caching algorithms in httplib2 for use with requests session objects.

python-cairocffi 0.9.0 — Python bindings and object-oriented API for Cairo

Cairocffi is a CFFI-based drop-in replacement for Pycairo, a set of Python bindings and object-oriented API for cairo. Cairo is a 2D vector graphics library with support for multiple backends including image buffers, PNG, PostScript, PDF, and SVG file output.

python-capstone 3.0.5 — Lightweight multi-platform, multi-architecture disassembly framework

Capstone is a lightweight multi-platform, multi-architecture disassembly framework. Capstone can disassemble machine code for many supported architectures such as x86, x86_64, arm, arm64, mips, ppc, sparc, sysz and xcore. It provides bindings for Python, Java, OCaml and more.

python-capturer 2.4 — Capture stdout and stderr streams of the current process

The capturer package makes it easy to capture the stdout and stderr streams of the current process and subprocesses. Output can be relayed to the terminal in real time but is also available to the Python program for additional processing.

python-case 1.5.3 — Unittest utilities and convenience methods

The case package provides utilities on top of unittest, including some helpful Python 2 compatibility convenience methods.

python-cbor 1.0.0 — Implementation of the Concise Binary Object Representation

Python-cbor provides an implementation of the Concise Binary Object Representation (CBOR). CBOR is comparable to JSON, has a superset of JSON's ability, but serializes to a binary format which is smaller and faster to generate and parse. The two primary functions are cbor.loads and cbor.dumps.

python-ccm 2.1.6 — Cassandra Cluster Manager for Apache Cassandra clusters on localhost

Cassandra Cluster Manager is a development tool for testing local Cassandra clusters. It creates, launches and removes Cassandra clusters on localhost.

python-celery 4.2.1 — Distributed Task Queue

Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well. The execution units, called tasks, are executed concurrently on a single or more worker servers using multiprocessing, Eventlet, or gevent. Tasks can execute asynchronously (in the background) or synchronously (wait until ready).

python-certifi 2018.11.29 — Python CA certificate bundle

Certifi is a Python library that contains a CA certificate bundle, which is used by the Requests library to verify HTTPS requests.

python-cffi 1.11.5 — Foreign function interface for Python

Foreign Function Interface for Python calling C code.

python-cftime — Library for time handling

This package provides time-handling functionality that used to be part of the netcdf4 package before.

python-chai 1.1.2 — Mocking framework for Python

Chai provides an api for mocking, stubbing and spying your python objects, patterned after the Mocha library for Ruby.

python-chardet 3.0.4 — Universal encoding detector for Python 2 and 3

This package provides chardet, a Python module that can automatically detect a wide range of file encodings.

python-cheetah 3.1.0 — Template engine

Cheetah is a text-based template engine and Python code generator.

Cheetah can be used as a standalone templating utility or referenced as a library from other Python applications. It has many potential uses, but web developers looking for a viable alternative to ASP, JSP, PHP and PSP are expected to be its principle user group.


  1. Generates HTML, SGML, XML, SQL, Postscript, form email, LaTeX, or any other text-based format.

  2. Cleanly separates content, graphic design, and program code.

  3. Blends the power and flexibility of Python with a simple template language that non-programmers can understand.

  4. Gives template writers full access to any Python data structure, module, function, object, or method in their templates.

  5. Makes code reuse easy by providing an object-orientated interface to templates that is accessible from Python code or other Cheetah templates. One template can subclass another and selectively reimplement sections of it.

  6. Provides a simple, yet powerful, caching mechanism that can dramatically improve the performance of a dynamic website.

  7. Compiles templates into optimized, yet readable, Python code.

python-cleo 0.6.1 — Command-line arguments library for Python

Cleo allows you to create command-line commands with signature in docstring and colored output.

python-clf 0.5.7 — Search code snippets on

clf is a command line tool for searching code snippets on

python-click 7.0 — Command line library for Python

Click is a Python package for creating command line interfaces in a composable way with as little code as necessary. Its name stands for "Command Line Interface Creation Kit". It's highly configurable but comes with sensible defaults out of the box.

python-click-log 0.3.2 — Logging for click applications

This package provides a Python library for logging Click applications.

python-click-threading 0.4.4 — Utilities for multithreading in Click

This package provides utilities for multithreading in Click applications.

python-clint 0.5.1 — Command-line interface tools

Clint is a Python module filled with a set of tools for developing command-line applications, including tools for colored and indented output, progress bar display, and pipes.

python-cloudpickle 0.6.1 — Extended pickling support for Python objects

Cloudpickle makes it possible to serialize Python constructs not supported by the default pickle module from the Python standard library. It is especially useful for cluster computing where Python expressions are shipped over the network to execute on remote hosts, possibly close to the data.

python-clyent 1.2.1 — Command line client library

Clyent is a Python command line utiliy library. It is used by binstar, binstar-build and chalmers.

python-codecov 2.0.15 — Upload code coverage reports to

Codecov collects code coverage reports from code written in Python, Java, C/C++, R, and more, and uploads it to the service.

python-colorama 0.3.9 — Colored terminal text rendering for Python

Colorama is a Python library for rendering colored terminal text.

python-coloredlogs 7.3 — Colored stream handler for Python's logging module

The coloredlogs package enables colored terminal output for Python's logging module. The ColoredFormatter class inherits from logging.Formatter and uses ANSI escape sequences to render your logging messages in color.

python-colormath 3.0.0 — Color math and conversion library

This is a Python library for color math and conversions.

python-colorspacious 1.1.0 — Python library for colorspace conversions

colorspacious is a Python library that lets you convert between colorspaces like sRGB, XYZ, CIEL*a*b*, CIECAM02, CAM02-UCS, etc.

python-commandlines 0.4.1 — Command line argument to object parsing library

Commandlines is a Python library for command line application development that supports command line argument parsing, command string validation testing and application logic.

python-conda 4.3.16 — Cross-platform, OS-agnostic, system-level binary package manager

Conda is a cross-platform, Python-agnostic binary package manager. It is the package manager used by Anaconda installations, but it may be used for other systems as well. Conda makes environments first-class citizens, making it easy to create independent environments even for C libraries. Conda is written entirely in Python.

This package provides Conda as a library.

python-configargparse 0.12.0 — Replacement for argparse

A drop-in replacement for argparse that allows options to also be set via config files and/or environment variables.

python-configobj 5.0.6 — Config file reading, writing and validation

ConfigObj is a simple but powerful config file reader and writer: an ini file round tripper. Its main feature is that it is very easy to use, with a straightforward programmer’s interface and a simple syntax for config files.

python-configparser 3.5.0 — Backport of configparser from python 3.5

python-configparser is a backport of configparser from Python 3.5 so that it can be used directly in other versions.

python-constantly 15.1.0 — Symbolic constants in Python

Constantly is a Python library that provides symbolic constant support. It includes collections and constants with text, numeric, and bit flag values.

python-consul 0.6.1 — Python client for Consul

Python client for Consul, a tool for service discovery, monitoring and configuration.

python-cookies 2.2.1 — HTTP cookie parser and renderer

A RFC 6265-compliant HTTP cookie parser and renderer in Python.

python-cooler 0.7.11 — Sparse binary format for genomic interaction matrices

Cooler is a support library for a sparse, compressed, binary persistent storage format, called cool, used to store genomic interaction data, such as Hi-C contact matrices.

python-cov-core 1.15.0 — Coverage plugin core for pytest-cov, nose-cov and nose2-cov

This is a library package for use by pytest-cov, nose-cov and nose2-cov. It is useful for developing coverage plugins for these testing frameworks.

python-coverage 4.4.1 — Code coverage measurement for Python

Coverage measures code coverage, typically during test execution. It uses the code analysis tools and tracing hooks provided in the Python standard library to determine which lines are executable, and which have been executed.

python-coveralls 1.5.1 — Show coverage stats online via is a service for publishing code coverage statistics online. This package provides seamless integration with (and thus pytest, nosetests, etc...) in Python projects.

python-cram 0.7 — Simple testing framework for command line applications

Cram is a functional testing framework for command line applications. Cram tests look like snippets of interactive shell sessions. Cram runs each command and compares the command output in the test with the command’s actual output.

python-cryptography 2.5 — Cryptographic recipes and primitives for Python

cryptography is a package which provides cryptographic recipes and primitives to Python developers. It aims to be the “cryptographic standard library” for Python. The package includes both high level recipes, and low level interfaces to common cryptographic algorithms such as symmetric ciphers, message digests and key derivation functions.

python-cryptography-vectors 2.5 — Test vectors for the cryptography package

This package contains test vectors for the cryptography package.

python-cssmin 0.2.0 — Python port of the YUI CSS Compressor

Python port of the YUI CSS Compressor.

python-cssselect 0.9.2 — CSS3 selector parser and translator to XPath 1.0

Cssselect ia a Python module that parses CSS3 Selectors and translates them to XPath 1.0 expressions. Such expressions can be used in lxml or another XPath engine to find the matching elements in an XML or HTML document.

python-cssutils 1.0.2 — CSS Cascading Style Sheets library for Python

Cssutils is a Python package for parsing and building CSS Cascading Style Sheets. Currently it provides a DOM only and no rendering options.

python-curtsies 0.2.11 — Library for curses-like terminal interaction with colored strings

Curtsies is a Python library for interacting with the terminal. It features string-like objects which carry formatting information, per-line fullscreen terminal rendering, and keyboard input event reporting.

python-cvxopt 1.2.1 — Python library for convex optimization

CVXOPT is a package for convex optimization based on the Python programming language. Its main purpose is to make the development of software for convex optimization applications straightforward by building on Python’s extensive standard library and on the strengths of Python as a high-level programming language.

python-cycler 0.10.0 — Composable keyword argument iterator

When using matplotlib and plotting more than one line, it is common to want to be able to want to be able to cycle over one or more artist styles; but the plotting logic can quickly become involved. To address this and enable easy cycling over arbitrary kwargs, the Cycler class was developed.

python-cypari2 2.0.3 — Python interface to the number theory library libpari

Cypari2 provides a Python interface to the number theory library PARI/GP. It has been spun off from the SageMath mathematics software system, but it can be used independently.

python-cysignals 1.9.0 — Handling of interrupts and signals for Cython

The cysignals package provides mechanisms to handle interrupts (and other signals and errors) in Cython code, using two related approaches, for mixed Cython/Python code or external C libraries and pure Cython code, respectively.

python-cython 0.28.4 — C extensions for Python

Cython is an optimising static compiler for both the Python programming language and the extended Cython programming language. It makes writing C extensions for Python as easy as Python itself.

python-cytoolz — High performance functional utilities

The cytoolz package implements the same API as provided by toolz. The main differences are that cytoolz is faster and cytoolz offers a C API that is accessible to other projects developed in Cython.

python-dask 1.0.0 — Parallel computing with task scheduling

Dask is a flexible parallel computing library for analytics. It consists of two components: dynamic task scheduling optimized for computation, and large data collections like parallel arrays, dataframes, and lists that extend common interfaces like NumPy, Pandas, or Python iterators to larger-than-memory or distributed environments. These parallel collections run on top of the dynamic task schedulers.

python-dateutil 2.7.3 — Extensions to the standard datetime module

The dateutil module provides powerful extensions to the standard datetime module, available in Python 2.3+.

python-datrie 0.7.1 — Fast, efficiently stored trie for Python

This package provides a fast, efficiently stored trie implementation for Python.

python-dbus 1.2.8 — Python bindings for D-bus

python-dbus provides bindings for libdbus, the reference implementation of D-Bus.

python-ddt 1.1.3 — Data-Driven Tests

Data-Driven Tests (DDT) allow you to multiply one test case by running it with different test data, and make it appear as multiple test cases.

python-debian 0.1.28 — Debian package related modules

This package provides Python modules that abstract many formats of Debian-related files, such as:

  1. Debtags information;

  2. debian/changelog files;

  3. packages files, pdiffs;

  4. control files of single or multiple RFC822-style paragraphs---e.g. debian/control, .changes, .dsc;

  5. Raw .deb and .ar files, with (read-only) access to contained files and meta-information.

python-debtcollector 1.19.0 — Find deprecated patterns and strategies in Python code

This package provides a collection of Python deprecation patterns and strategies that help you collect your technical debt in a non-destructive manner.

python-debug 3.7.0 — High-level, dynamically-typed programming language (for debugging)

This variant of Python provides an interpreter built with --with-pydebug to help develop and debug extensions. See, for more information.

python-decorator 4.3.0 — Python module to simplify usage of decorators

The aim of the decorator module is to simplify the usage of decorators for the average programmer, and to popularize decorators usage giving examples of useful decorators, such as memoize, tracing, redirecting_stdout, locked, etc. The core of this module is a decorator factory.

python-defusedxml 0.5.0 — XML bomb protection for Python stdlib modules

Defusedxml provides XML bomb protection for Python stdlib modules.

python-dendropy 4.4.0 — Library for phylogenetics and phylogenetic computing

DendroPy is a library for phylogenetics and phylogenetic computing: reading, writing, simulation, processing and manipulation of phylogenetic trees (phylogenies) and characters.

python-diff-match-patch 20121119 — Synchronize plain text

Diff Match and Patch libraries offer robust algorithms to perform the operations required for synchronizing plain text.

python-dill — Serialize all of Python

Dill extends Python's pickle module for serializing and de-serializing Python objects to the majority of the built-in Python types. Dill provides the user the same interface as the pickle module, and also includes some additional features. In addition to pickling Python objects, dill provides the ability to save the state of an interpreter session in a single command. Hence, it would be feasable to save a interpreter session, close the interpreter, ship the pickled file to another computer, open a new interpreter, unpickle the session and thus continue from the saved state of the original interpreter session.

python-dirsync 2.2.3 — Advanced directory tree synchronisation tool

Advanced directory tree synchronisation tool.

python-discid 1.1.1 — Python bindings for Libdiscid

This package provides Python bindings for the Libdiscid library. The main purpose is the calculation of Disc IDs for use with the MusicBrainz database. Additionally the disc Media Catalog Number (MCN) and track International Standard Recording Code (ISRC) can be extracted.

python-discogs-client 2.2.1 — Official Python client for the Discogs API

This is the official Discogs API client for Python. It enables you to query the Discogs database for information on artists, releases, labels, users, Marketplace listings, and more. It also supports OAuth 1.0a authorization, which allows you to change user data such as profile information, collections and wantlists, inventory, and orders.