[Tutor] string matching and replacement

[Melissa Holden]

I am trying to learn Python, and have used it for a few cgi scripts, but =
am still very much a beginner.  Any help with this problem would be =
appreciated:

I am trying to search a file for 2 markers, and replace the text in =
between them.  My first thought was to use regular expressions, but I =
haven't been able to get it to work.  So far, I have come up with =
something like this:

p =3D re.compile(r'<!-- beginning text -->')
m =3D p.search( file )
if m:
        print 'Match found: ', m.group()
else:
        print 'No match'

As it is, this works, but when I try to add something in the middle and =
the end text marker (e.g., p=3Dre.compile(r'<!-- beginning text -->.*<!-- =
ending text -->')), it breaks.  If I could get this part to work, I was =
planning to use sub to replace the section with something else.  Basically,=
 I want to find the beginning and ending tags, and replace what's in =
between them (which will vary in length).

Any help will be greatly appreciated.

Thanks!
Melissa