Roy Smith wrote: > In article <[EMAIL PROTECTED]>, > "Teja" <[EMAIL PROTECTED]> wrote: > > > HI all, > > > > I need to write a regular experssion for a string which satisfies the > > following a criteria : > > > > 1) it should start with an alphabet > > I assume you mean, "It should start with a letter"? > > > 2) it can contain alphabets/digits/_ from second character > > 3) it can contain "[a-z]" or "[0-9]" at the end. but this is optional > > How about: ^[a-zA-Z][a-zA-Z0-9_]*[a-z0-9]?$ > > Probably many variations on that theme will also work.
Thnks Roy for ur quick reply..... Here is what I want actually Some examples string1 string_1 string1[0] string_1_str[a] STRING_1_[2] STRING_1_str[a][1][2] etc etc I need a regular expression for such strings -- http://mail.python.org/mailman/listinfo/python-list