At 10:42 AM 8/1/2005, Gilbert Tsang wrote:
Hi there,

I would like to construct some string objects using the cprintf-style format:

command_string = "diff -u %s %s > %s.patch" % ( src, dst, file )

Of course it is illegal in python

How did you conclude that? "diff -u %s %s > %s.patch" % ( src, dst, file ) is a Python _expression_, and will do what you want!

See http://docs.python.org/lib/typesseq-strings.html for the official documentation.

but I couldn't figure out a way to
construct strings with that kind of formatting and substitution.

I have been looking and couldn't discover string constructor such as

command_string = string( "diff -u %s %s > %s.patch" % ( src, dst, file ) )

 From the documentation on docs.python.org, the closest is string
Template (but my python installation doesn't come with this module). Any
insights on initializing string in this manner?


Thanks, Gilbert.
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Bob Gailer
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