Ken Seehof <kens at sightreader.com> wrote in comp.lang.python: > Hey, this reminds me of a useless python idea I had a few years ago. > > First write a streaming preprocessor for python. Make a fancy > importer that makes *.py dependent on *.ppy the same way *.pyc > is dependent on *.py. Then add a preprocessor command "exit()". > > # example.ppy > print 'hello', > #!x=5 > #!if x==5: > #! print "print 'lumberjacks.'" > #! exit() > print 'world.' > > This would be a fun project that I don't have time for. Any idea why > it would be useful? I might be willing to coauthor it if someone else > wants to do the import logic (custom importers make my head hurt). > > Of course it's most likely useless since python's a bit too dynamic to > really -need- a proprocessor, but I could be missing something. > > In case you are confused: > The preprocessor copies lines that don't start with "#!". > The preprocessor executes lines that start with "#!". > The print statement (stdout) is redirected to preprocessor output. Would it be possible to nest these things? :-) And of course, the final output needn't be a Python program. Hmmmmm.... -- Remco Gerlich
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