From 0083fce54cf91f9337ff6677b1b75d754b61fd26 Mon Sep 17 00:00:00 2001
From: Guillaume Ayoub <guillaume.ayoub@kozea.fr>
Date: Mon, 21 Jan 2019 11:48:18 +0100
Subject: [PATCH] Set default values when guessing columns sizes

Fix #770.
---
 weasyprint/layout/tables.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/weasyprint/layout/tables.py b/weasyprint/layout/tables.py
index 7e17183b6..3bdd3bf71 100644
--- a/weasyprint/layout/tables.py
+++ b/weasyprint/layout/tables.py
@@ -573,6 +573,11 @@ def auto_table_layout(context, box, containing_block):
             min_content_specified_guess[i] = column_min_content_widths[i]
 
     if assignable_width <= sum(max_content_guess):
+        # Default values shouldn't be used, but we never know.
+        # See https://github.com/Kozea/WeasyPrint/issues/770
+        lower_guess = guesses[0]
+        upper_guess = guesses[-1]
+
         # We have to work around floating point rounding errors here.
         # The 1e-9 value comes from PEP 485.
         for guess in guesses: