Cheetah3 is a free (BSD-style) and open source template engine and code
generation tool.

It can be used standalone or combined with other tools and frameworks. Web
development is its principle use, but Cheetah is very flexible and is also being
used to generate C++ game code, Java, sql, form emails and even Python code.

It's a fork of the original CheetahTemplate library.

A tool to show calendar event details in Mutt.

python version of node-semver (https://github.com/isaacs/node-semver)

Parsel is a library to extract data from HTML and XML using XPath and CSS
selectors.

Plyvel is a Python interface to LevelDB.

In addition to basic features like getting, putting and deleting
data, Plyvel allows you to use write batches, database snapshots,
very flexible iterators, prefixed databases, bloom filters, custom
cache sizes, custom comparators.

Dispatcher mechanism for creating event models.

PyDispatcher is an enhanced version of Patrick K. O’Brien’s original
dispatcher.py module. It provides the Python programmer with a robust
mechanism for event routing within various application contexts.

Included in the package are the robustapply and saferef modules, which
provide the ability to selectively apply arguments to callable objects and
to reference instance methods using weak-references.

Pytools is a big bag of things that are "missing" from the Python standard library.
This is mainly a dependency of other software packages (pycuda, pyopencl, etc ),
and is probably of little interest to you unless you use those. If you're curious
nonetheless, here's what's on offer:
* A ton of small tool functions such as len_iterable, argmin, tuple generation,
permutation generation, ASCII table pretty printing, GvR's mokeypatch_xxx() hack,
the elusive flatten, and much more.
* Michele Simionato's decorator module
* A time-series logging module, pytools.log.
* Batch job submission, pytools.batchjob.
* A lexer, pytools.lex.

Queuelib is a collection of persistent (disk-based) queues for Python.

Queuelib goals are speed and simplicity. It was originally part of the `Scrapy
framework`_ and stripped out on its own library.

Next generation test framework for Linux

Concurrency primitives, safe memory reclamation mechanisms and non-blocking
data structures for the research, design and implementation of high performance
concurrent systems.

JSON is a lightweight data-interchange format. It can represent numbers,
strings, ordered sequences of values, and collections of name/value pairs.

JsonCpp is a C++ library that allows manipulating JSON values, including
serialization and deserialization to and from strings. It can also preserve
existing comment in unserialization/serialization steps, making it a convenient
format to store user input files.

The libmd library provides a few message digest ("hash") functions, as
found on various BSDs on a library with the same name and with a compatible
API.

This is an implementation of Hypertext Transfer Protocol version 2.

The framing layer of HTTP/2 is implemented as a form of reusable C
library. On top of that, we have implemented HTTP/2 client, server
and proxy. We have also developed load test and benchmarking tool
for HTTP/2.

HPACK encoder and decoder are available as public API.

The tecla library provides UNIX and LINUX programs with interactive
command line editing facilities, similar to those of the UNIX tcsh
shell. In addition to simple command-line editing, it supports recall
of previously entered command lines, TAB completion of file names or
other tokens, and in-line wild-card expansion of filenames. The
internal functions which perform file-name completion and wild-card
expansion are also available externally for optional use by programs.

XML-RPC is a lightweight RPC protocol based on XML and HTTP. This
package is used by XML-RPC clients and servers written in C and C++.

All kind of developments tools. Esp. profiling and debugging tools.

ABI Compliance Checker (ACC) is an easy-to-use tool for checking backward binary compatibility (BC) of a shared C/C++ library. It checks header files along with shared libraries of old and new versions and analyzes changes in Application Binary Interface (ABI) that may cause compatibility problems: changes in calling stack, v-table changes, removed symbols, etc. Breakage of the binary compatibility may result in crashing or incorrect behavior of applications built with an old version of the library if they run on a new one. The tool is intended for library developers and operating system maintainers who are interested in ensuring binary compatibility, i.e. allow old applications to run with newer library versions without the need to recompile.

The tool is intended to be used with ABI Compliance Checker tool for tracking
ABI changes of a C/C++ library or kernel module.

The tool is developed by Andrey Ponomarenko: ;

Monitor new versions of a software library, try to build them
and create profiles for abi-tracker

This tool visualizes an ABI changes timeline of a C/C++ software library.

It requires input profile of the library in JSON format. It can be created
manually or automatically generated by the ABI Monitor.

bbe is a sed-like editor for binary files. Instead of reading input in
lines as sed, bbe reads arbitrary blocks from an input stream and performs
byte-related transformations on found blocks.

A library to support the benchmarking of functions, similar to unit-tests.

Cram is a functional testing framework for command line applications
based on Mercurial's `unified test format'.

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.

Gengetopt is a tool to generate C code to parse getopt styled command line
arguments.
It's similar or even more powerful than the well known libpopt but does not
add any run or compile time dependencies to your projects. Moreover
reading/writing the options from/to config files is also supported.