Issue #9974: When untokenizing, use row info to insert backslash+newline.
Original patches by A. Kuchling and G. Rees (#12691).
diff --git a/Lib/tokenize.py b/Lib/tokenize.py
index 7356a88..9bbb512 100644
--- a/Lib/tokenize.py
+++ b/Lib/tokenize.py
@@ -234,6 +234,10 @@
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))
+ row_offset = row - self.prev_row
+ if row_offset:
+ self.tokens.append("\\\n" * row_offset)
+ self.prev_col = 0
col_offset = col - self.prev_col
if col_offset:
self.tokens.append(" " * col_offset)
@@ -248,6 +252,8 @@
if tok_type == ENCODING:
self.encoding = token
continue
+ if tok_type == ENDMARKER:
+ break
self.add_whitespace(start)
self.tokens.append(token)
self.prev_row, self.prev_col = end