python stuff...

RobotRules.py - Robots.txt File Parser
http://www.robotstxt.org/wc/exclusion.html
PorterStemmer.py - Porter Stemming Algorithm — in 1,200+ public repos (Gensim, NLTK, …)
Porter, M. "An algorithm for suffix stripping." Program 14.3 (1980): 130-137.
Used by:
- EMU: A Web Portal Generator
Versions & lineage: 2002 (this page) · 2001 original (v@nano.com) · current (canonical repo).
The complete evolution (2001→2026) lives in the canonical repo — with the Gensim, NLTK and Release 2 forks preserved as pull requests to evaluate.
Simplex.py - Nedler-Mead simplex regression method for arbitrary nonlinear function minimization. — in 34+ repos (EMAN2 cryo-EM, ImageD11, GenX)
Nedler, J.A. and Mead, R. "A Simplex Method for Function Minimization." Computer Journal 7 (1965): 308-313.
Metropolis.py - Metropolis-Hastings Algorithm for Monte Carlo Simulations
Metropolis N., Rosenbluth A.W., Rosenbluth M.N., Teller A.H. and Teller E. "Equations of state calculations by fast computing machines." Journal of Chemical Physics 21 (1953): 1087-1091.
Hastings, W. K. "Monte Carlo sampling methods using Markov chains and their applications." Biometrika 57 (1970): 97-109.
MP3Info.py - MPEG Metadata Extractor — in 29+ repos (Freevo/kaa-metadata, edna, PyTone)
http://www.id3.org
Used by:

Each module's title links to its canonical, maintained source — a stable omniscia.org address that always resolves to the current home of the code.

Comments, questions, clarifications, suggestions, corrections to: vivake AT omniscia.org.