PyMOL is a capable molecular viewer and renderer. It can be used to prepare publication-quality figures, to share interactive results with your colleagues, or to generate pre-rendered animations.

Pysam is a Python module for reading and manipulating files in the SAM/BAM format. Pysam is a lightweight wrapper of the SAMtools C API. It also includes an interface for tabix.

Pywal is a tool that generates a color palette from the dominant colors in an image. It then applies the colors system-wide and on-the-fly in all of your favourite programs.

Pyro enables you to build applications in which objects can talk to each other over the network. You can just use normal Python method calls to call objects on other machines, also known as remote procedure calls (RPC).

PyOTP is a Python library for generating and verifying one-time passwords. It can be used to implement two-factor (2FA) or multi-factor (MFA) authentication methods in web applications and in other systems that require users to log in.

This package provides a Python interface the libVEX and VEX IR. VEX is the intermediate representation (also known as intermediate language) used by the Valgrind analysis tool. As such, VEX is designed to enable all kinds of binary analysis tasks.

This package provides Python bindings to the UCSC Big Binary (bigWig/bigBed) file library. This provides read-level access to local and remote bigWig and bigBed files but no write capabilitites. The main feature is fast retrieval of range queries into numpy arrays.

Pyan takes one or more Python source files, performs a (rather superficial) static analysis, and constructs a directed graph of the objects in the combined source, and how they define or use each other. The graph can be output for rendering by GraphViz or yEd.

pyfma provides an implementation of fused multiply-add which computes (x*y) + z with a single rounding. This is useful for dot products, matrix multiplications, polynomial evaluations (e.g., with Horner's rule), Newton's method for evaluating functions, convolutions, artificial neural networks etc.

Pyxel is a game engine inspired by retro gaming consoles. It has a fixed 16-color palette, can hold up to 3 image banks and 8 tilemaps (256x256 pixels each) and 4 sound channels with 64 definable sounds. It also comes with a built-in image and sound editor.

PyAMG is a Python library of Algebraic Multigrid (AMG) solvers. It features implementations of:

• Ruge-Stuben (RS) or Classical AMG

• AMG based on Smoothed Aggregation (SA)

• Adaptive Smoothed Aggregation (αSA)

• Compatible Relaxation (CR)

• Krylov methods such as CG, GMRES, FGMRES, BiCGStab, MINRES, etc.

python-pysox is a wrapper around the sox command line tool. The API offers Transformer and Combiner classes that allow the user to incrementally build up effects and audio manipulations. python-pysox also provides methods for querying audio information such as sample rate, determining whether an audio file is silent, and much more.

Pylru implements a true LRU cache along with several support classes. Pylru provides a cache class with a simple dict interface. It also provides classes to wrap any object that has a dict interface with a cache. Both write-through and write-back semantics are supported. Pylru also provides classes to wrap functions in a similar way, including a function decorator.

In data compression, BCJ, short for Branch-Call-Jump, refers to a technique that improves the compression of machine code of executable binaries by replacing relative branch addresses with absolute ones. This allows a LZMA compressor to identify duplicate targets and archive higher compression rate. BCJ is used in the 7-zip compression utility as the default filter for executable binaries.

pybcj provides Python bindings to a BCJ implementation in C.

The PyPNG module implements support for PNG images. It reads and writes PNG files with all allowable bit depths (1/2/4/8/16/24/32/48/64 bits per pixel) and colour combinations: greyscale (1/2/4/8/16 bit); RGB, RGBA, LA (greyscale with alpha) with 8/16 bits per channel; colour mapped images (1/2/4/8 bit). Adam7 interlacing is supported for reading and writing. A number of optional chunks can be specified (when writing) and understood (when reading): tRNS, bKGD, gAMA.

PyPNG is not a high level toolkit for image processing (like PIL) and does not aim at being a replacement or competitor. Its strength lies in fine-grained extensive support of PNG features. It can also read and write Netpbm PAM files, with a focus on its use as an intermediate format for implementing custom PNG processing.

PyFIM is an extension module that makes several frequent item set mining implementations available as functions in Python 2.7.x & 3.8.x. Currently apriori, eclat, fpgrowth, sam, relim, carpenter, ista, accretion and apriacc are available as functions, although the interfaces do not offer all of the options of the command line program. (Note that lcm is available as an algorithm mode of eclat). There is also a "generic" function fim, which is essentially the same function as fpgrowth, only with a simplified interface (fewer options).

Finally, there is a function arules for generating association rules (simplified interface compared to apriori, eclat and fpgrowth, which can also be used to generate association rules.

Export data as binary VTK files

This package provides a python ShEx Implementation.

This package provides udev bindings for Python.

This package provides a library for writing Neovim plugins in Python.

This package provides Python bindings for libcups, wrapping the CUPS API.

python-pyodbc provides a Python DB-API driver for ODBC.

This package provides a Python parser for TOML-0.4.0.

Pygit2 is a set of Python bindings to the libgit2 shared library.