wrap py3 iterators with list() for each places that expect a list object. refs #1350.

1 files changed, 1 insertions, 1 deletions

diff --git a/sphinx/writers/text.py b/sphinx/writers/text.py
index 62d3791fb..3f2edd145 100644
--- a/sphinx/writers/text.py
+++ b/sphinx/writers/text.py
@@ -488,7 +488,7 @@ class TextTranslator(nodes.NodeVisitor):
                 for i, cell in enumerate(line):
                     par = my_wrap(cell, width=colwidths[i])
                     if par:
-                        maxwidth = max(map(column_width, par))
+                        maxwidth = max(column_width(x) for x in par)
                     else:
                         maxwidth = 0
                     realwidths[i] = max(realwidths[i], maxwidth)