Diez B. Roggisch wrote: > [EMAIL PROTECTED] wrote: > > I have a config file with the following contents: > > service A = { > > params { > > dir = "c:\test", > > username = "test", > > password = "test" > > } > > } > > > > I want to find username and replace the value with another value. I > > don't know what the username value in advance though. How to do it in > > python? > > Could be done using regular expressions. Ususally for such tasks one > would prefer pythons string manipulation functions, but if you want to > preserve whitespace, I think a rex is in order here: > > > import re, sys > > > new_name = "foobar" > > rex = re.compile(r'(^.*username *=[^"]*")([^"]*)(".*$)') > for line in sys.stdin: > m = rex.match(line) > if m is not None: > line = "%s%s%s\n" % (m.group(1), new_name, m.group(3)) > sys.stdout.write(line) > > > > use with > > python script.py < config_in > config_out > > Regards, > > Diez
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