:func:`float`. ``split()`` supports an optional "sep" parameter which is useful
if the line uses something other than whitespace as a separator.
-For more complicated input parsing, regular expressions more powerful than C's
-:cfunc:`sscanf` and better suited for the task.
+For more complicated input parsing, regular expressions are more powerful
+than C's :cfunc:`sscanf` and better suited for the task.
What does 'UnicodeDecodeError' or 'UnicodeEncodeError' error mean?