On Tuesday, December 18, 2012 1:57:37 PM UTC-7, ru... at yahoo.com wrote: >[...] > source code online. For the v3.0.0 version of open(): > hg.python.org/cpython/file/bd8afb90ebf2/Modules/_io/_iomodule.c oops, that should have been: http://hg.python.org/cpython/file/bd8afb90ebf2/Modules/_io/_iomodule.c