Of course, when the type of the argument to dis() is unsupported, it

gvanrossum · gvanrossum · commit 00f86e608644 · 1997-01-17T20:08:18.000Z
should raise TypeError, not ValueError...
diff --git a/Lib/dis.py b/Lib/dis.py
@@ -14,7 +14,7 @@ def dis(x=None):
 		if hasattr(x, 'co_code'):
 			disassemble(x)
 		else:
-			raise ValueError, \
+			raise TypeError, \
 			      "don't know how to disassemble %s objects" % \
 			      type(x).__name__
 
