Python Service Objects

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Python Service Objects (PSO) is a software package for the Python programming language that simplifies HTTP handlers. PSO was developed by Thanos Vassilakis in 1996, and was used for a series of first-generation internet casinos, including Caesars Palace, Can-Can, and LuckyNumbers.

Later, it was used for the New York Stock Exchange's first internet-based service, the Specialist Portfolio (SPF 1998). SPF became the NYSE's third mainstream trading service.


  • Built-in sessions.
  • Write once run on modpython, modsnake, NASAPY, fastcgi, CGI.
  • Easy interface to HTTP info.
  • Simple, fast, robust and powerful extendable OO template parser.

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