commit 2aaad462ca9d963f5269793673a592e4dd05abdd
author Terry Jan Reedy <tjreedy@udel.edu> Sun May 22 14:35:13 2016 -0400
committer Terry Jan Reedy <tjreedy@udel.edu> Sun May 22 14:35:13 2016 -0400
tree 42d2c518b331464d6b77a82056d6e0081c60c00a
parent a8a259eedb6a78d5d157f4868b066b90ff9092da

Issue #26673: Protect IDLE from Linux fonts with reported default size 0.
Such fonts on Linux prevented the configuration dialog from opening.

Lib/idlelib/configHandler.py

diff --git a/Lib/idlelib/configHandler.py b/Lib/idlelib/configHandler.py
index efd5f3c..4c95a39 100644
--- a/Lib/idlelib/configHandler.py
+++ b/Lib/idlelib/configHandler.py
@@ -721,7 +721,7 @@
                 actualFont = Font.actual(f)
                 family = actualFont['family']
                 size = actualFont['size']
-                if size < 0:
+                if size <= 0:
                     size = 10  # if font in pixels, ignore actual size
                 bold = actualFont['weight']=='bold'
         return (family, size, 'bold' if bold else 'normal')