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Python Package Index

Python Software Foundation License

Python Software Foundation

QEMU

QMK

RapidMiner

Ratpoison

Razor-qt

Requests (software)

Rhythmbox

RPM Package Manager

RubyGems

Ruby License

Sabayon Linux

Scribes (software)

Scribus

Simple DirectMedia Layer

Seasar

Slony-I

Slrn

Software Freedom Law Center

Sound Juicer

SpatiaLite

Firefox#Advertising

SquirrelMail