(py-compute-indentation): Use forward-comment to skip over all
whitespace and comment noise.
diff --git a/Misc/python-mode.el b/Misc/python-mode.el
index 5dcd532..0262210 100644
--- a/Misc/python-mode.el
+++ b/Misc/python-mode.el
@@ -1592,7 +1592,7 @@
 			   (/= startpos
 			       (save-excursion
 				 (goto-char (1+ open-bracket-pos))
-				 (skip-chars-forward " \t\n")
+				 (forward-comment (point-max))
 				 (point))))
 		      ;; again mimic the first list item
 		      (current-indentation)