And I wouldn't mind mentioning that re is slightly over kill for the examples given.
Try this.


#######################################

old_group_delimiter = "\n\n"
old_line_delimiter = "\n"
new_group_delimiter = "\n"
new_line_delimiter = ", "

fi = raw_input("Input file to use? ")
fi = open(fi,"r")
stuff = fi.read()
fi.close()
addressgroups = stuff.split(old_group_delimiter)
addressgroups = [x.split(old_line_delimiter) for x in addressgroups]
addressgroups = [new_line_delimiter.join(x) for x in addressgroups]
newtext = new_group_delimiter.join(addressgroups)

fi = raw_input("Output file to use? ")
fi = open(fi,"w")
fi.write(newtext)
fi.close()

#######################################

But your probably using re to study it, though. Just an alternative option.
I'm trying to keep all the different ways in my head you know...

Jacob S.

The following program takes text data like this:
Jimi Hendrix
2100 South Ave
Seattle, WA 55408

and changes it to this

Jimi Hendrix, 2100 South Ave,Seattle,WA,55488

and writes it to a file. The problem I'm running into
is that it only writes this first address to a file
and there are several others in the file. I believe it
has something to do with using re.search instead of
re.findall. But re.findall returns a error when I try
using it. Suggestions? Thanks in advance.
Here is the script:

import re
f = open('reformat.txt').read()
pat = re.compile(r"([^\r\n]+)\n([^\r\n]*)\n([^\r\n]*)
([^\r\n]*) ([^\r\n]*)")
x=re.search(pat,f)
name = x.group(1)
address = x.group(2)
citystate = x.group(3)+x.group(4)
zipcd = x.group(5)
o= open('reformat1.txt','w')
o.write("%s,%s,%s,%s\n" % (name, address,
citystate,zipcd))
o.close()
print("%s,%s,%s,%s\n" % (name, address, citystate,zipcd))



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