> a = open(r'e:\pycode\csums.txt','rb').readlines() > > for line in a: > print re.sub(r'([^\w\s])', lambda s: '%%%2X' % ord(s.group()), > line)
Or just for line in open(r'e:\pycode\csums.txt','rb'): print..... > Breaking down the command, you appear to be calling an un-named > function > to act against any characters trapped by the regular expression. > > Not familiar with lamda :). You ae absolutely right. It creates an un-named(or anonymous function). :-) > The un-named function does in-place transformation of the character > to > the established hex value. Its actually the call to re.sub() that makes in in place. > How would you reverse the process from a python point of view? Just write a reverse function for the lamda... Alan G. _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
