Chris Angelico <ros...@gmail.com> writes: >>>> "asdfqwer"[4:] > 'qwer' > > That's a not uncommon operation when parsing strings or manipulating > data. You'd need to completely rework your algorithms to maintain a > position somewhere.
Scanning 4 characters (or a few dozen, say) to peel off a token in parsing a UTF-8 string is no big deal. It gets more expensive if you want to index far more deeply into the string. I'm asking how often that is done in real code. Obviously one can concoct hypothetical examples that would suffer. -- http://mail.python.org/mailman/listinfo/python-list
