1. purgatory
    A client implementation of the Plan 9 File Protocol
  2. puri
    puri, Portable Universal Resource Identifier, is a library for parsing and representing URIs
  3. Purity Test
    "Have you ever ..." : a Common Lisp Purity Test
  4. PURL
    PURL provides a parser and defines a type for URLs as specified in RFC1738
  5. PVS Specification and Verification System
    The PVS Specification and Verification System is a verification system: that is, a specification language integrated with support tools and a highly automated and higher order theorem prover
  6. pxmlutils
    development on the xml parser in pxmlutils has stopped, use Miles Egan's XMLS parser instead.
  7. py-configparser
    py-configparser allows reading and writing of configuration files stored in the Windows INI file format
  8. py-random
    A translation of the random module in the Python standard library
  9. Pyffi
    Pyffi, inspired by Python-on-Lisp, is a Python programming language FFI for Common Lisp
  10. Python
    Python is the name of a free high-performance compiler originally developed at Carnegie-Mellon University for CMU Common Lisp, it is now used by SBCL, Scieneer, and several other environments as well as CMUCL