diff options
Diffstat (limited to 'Lib/tokenize.py')
| -rw-r--r-- | Lib/tokenize.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Lib/tokenize.py b/Lib/tokenize.py index 7785c98f8b..123e94b99c 100644 --- a/Lib/tokenize.py +++ b/Lib/tokenize.py @@ -229,7 +229,9 @@ class Untokenizer: def add_whitespace(self, start): row, col = start - assert row <= self.prev_row + if row < self.prev_row or row == self.prev_row and col < self.prev_col: + raise ValueError("start ({},{}) precedes previous end ({},{})" + .format(row, col, self.prev_row, self.prev_col)) col_offset = col - self.prev_col if col_offset: self.tokens.append(" " * col_offset) |