puddletag is a tag editor for Linux loosely based on mp3tag. It uses a table layout so that all the tags you want to edit by hand are visible and easily editable. puddletag excels at automating repetitive tasks like extracting tag information from filenames, tagging files from a text file or the clipboard, renaming or moving files and folders based on tags by using patterns, and manipulating tags using actions and regular expressions. Supported formats include id3v1, id3v2 (.mp3), AAC (.m4a), VorbisComments (.ogg, .flac), and APEv2 (.ape). Much of mp3tag's functionality has been replicated with added enhancements and tweaks.
The pure::variants Eclipse plugin supports development and variant management for software product lines with many product variants. pure::variants is completely model-based. It uses feature models for variability and commonality modeling. It supports creation, management, and evaluation of all necessary models, and uses XML based data formats. It includes a model transformer, which permits the creation of product variants directly from customizable components.
pwnat, pronounced "poe-nat", is a tool that allows any number of clients behind NAT gateways to communicate with a server behind a separate NAT with no port forwarding and no DMZ setup on any routers in order to directly communicate with each other. The server does not need to know anything about the clients trying to connect, nor does it need to communicate with any other hosts in order to initiate the communication. Simply put, this is a proxy server that works behind a NAT, even when the client is behind a NAT. There is no middle man, no proxy, no third party, no UPnP required, no spoofing, and no DNS tricks. More importantly, the client can then connect to any host or port on any remote host or to a fixed host and port decided by the server.
pwsafe is a command line password database program for Unix. It is compatible with Counterpane's Win32 Password Safe software. It can also copy the passwords into the X selection and clipboard, but it doesn't open a visible window. The encrypted password database uses the same format as PasswordSafe 2.x (1.[7-9].x is also supported). The database is encrypted with blowfish, and a single passphrase decrypts it all.
Linux, FreeBSD, and Mac OS X all provide similar extended file attributes functionality, with significantly different interfaces. The pxattr package aims at providing a single extended file attributes interface on all three systems (and others in the future). It consists of a single C++ module to be included in the application source code. The C++ file can also be compiled to a command line attributes management command and test tool.
py-setproctitle is a library that allows a Python process to change its title, as displayed by system tools such as ps and top. Changing the title is useful in multi-process systems, for example when a master process is forked: changing the child's title allows you to identify the task each process is busy with. It is based on PostgreSQL's multi-platform implementation.
PYBAG implements a portable bag and is intended for fast synchronization and backup. It lets you use a portable digital storage device to carry your electronic documents similar to the way you can use a bag to carry paper documents. You can synchronize the bag with your original files easily. If a synchronization conflict occurs, it will be reported. You can specify rules for automatic conflict resolution. With PYBAG, you can backup files and synchronize any changes made to the original files with the bag. The synchronization process will only copy changed files. The program is cross-platform and independent from the OS and filesystem. You may easily synchronize files between Windows and Linux, for example. Symbolic links are supported on all systems (if the OS or filesystem does not support symlinks, then they are emulated). This program has a GUI and a command line interface.