Stop python

Remco Gerlich scarblac at pino.selwerd.nl
Tue Apr 17 08:20:42 EDT 2001


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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