+
+def del_token(lines, token, start, end):
+ """ del_token(lines, token, start, end) -> int
+
+ Find the lower line in lines where token is the first element and
+ delete that line.
+
+ Returns the number of lines remaining."""
+
+ k = find_token_exact(lines, token, start, end)
+ if k == -1:
+ return end
+ else:
+ del lines[k]
+ return end - 1
+