The characters that are deleted are those characters at positions
from start_pos up to, but not including end_pos. If end_pos is
negative, then the characters deleted are those from start_pos to
the end of the text.
Note that the positions are specified in characters, not bytes.
Deletes a sequence of characters.
The characters that are deleted are those characters at positions from start_pos up to, but not including end_pos. If end_pos is negative, then the characters deleted are those from start_pos to the end of the text.
Note that the positions are specified in characters, not bytes.