Issue #9871: Prevent IDLE 3 crash when given byte stings

with invalid hex escape sequences, like b'\x0'.
(Original patch by Claudiu Popa.)

1 files changed, 4 insertions, 4 deletions

diff --git a/Lib/idlelib/ScriptBinding.py b/Lib/idlelib/ScriptBinding.py
index 915e56e..26becce 100644
--- a/Lib/idlelib/ScriptBinding.py
+++ b/Lib/idlelib/ScriptBinding.py
@@ -101,10 +101,10 @@ class ScriptBinding:
         try:
             # If successful, return the compiled code
             return compile(source, filename, "exec")
-        except (SyntaxError, OverflowError) as value:
-            msg = value.msg or "<no detail available>"
-            lineno = value.lineno or 1
-            offset = value.offset or 0
+        except (SyntaxError, OverflowError, ValueError) as value:
+            msg = getattr(value, 'msg', '') or value or "<no detail available>"
+            lineno = getattr(value, 'lineno', '') or 1
+            offset = getattr(value, 'offset', '') or 0
             if offset == 0:
                 lineno += 1  #mark end of offending line
             pos = "0.0 + %d lines + %d chars" % (lineno-1, offset-1)