sg wrote: > hi,,,, > i am new to python. i want help in regular expression.. anyone explain > or guide me for following problem.. > > the content of txt file is splitted using the pipe | symbol and sorted . > then the field in the first row is compared with field in the second row and > the second row field is compared with third and so on till end of file.. if > there is mismatch between the row, the error will be throw as follows.. > For example, > > david thomson > davis thomson > > in above string 'd' and 's' are mismatched.. so the error will be thrown. > > This sounds to me like a homework problem. In any case, there's no reason to use regexps here. If you're checking for _any_ difference between two strings, you can just use the regular comparison operator: >>> 'david thomson' == 'davis thomson' False
Unless you have some other requirements you haven't mentioned. HTH, -Luke _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
