Seeking assistance - string processing.

[Peter Otten]

billpaterson2006 at googlemail.com wrote:

> Cheers for the reply.
> 
> But I'm still having a spot of bother with the === addition
> 
> it would seem that if there is no whitespace after the ===test
> then the new === gets added to the next line
> 
> e.g file contains:
> 
> ===test (and then no whitesapace/carriage returns or anything)
> 
> and the result is:
> 
> ===test
> ===

You'd get the above with Fredrik's solution if there is a newline. That's
why I put in the rstrip() method call (which removes trailing whitespace)
and added an explicit "\n" (the Python way to spell newline). With my
approach 

if line.startswith("==="):
   line = line.rstrip() + "===\n"

you should always get

===test===(and then a newline)

Peter