Fix bare except.

diff --git a/dns/opcode.py b/dns/opcode.py
index 17f558977ea4ca5d560f51d6977ca69b01491e4c..d81d25588324c87dc7061d9ec0b17f3ac17aff66 100644 (file)
--- a/dns/opcode.py
+++ b/dns/opcode.py
@@ -59,7 +59,7 @@ def from_text(text):
                 return value
     try:
         return Opcode[text.upper()]
-    except:
+    except KeyError:
         raise UnknownOpcode