Add 3.0 comp_if_not grammar rule

test/simple_source/bug30/06_listcomp.py

@@ -0,0 +1,24 @@
+# Python 3.0 comprehensions can produce different code from
+# all other Python versions. Thanks, Python!
+
+# This code is RUNNABLE!
+
+# Adapted from 3.0 ast.py; uses comprehension implemented via CLOSURE
+def _format(node):
+    return [(a, int(b)) for a, b in node.items()]
+
+x = {'a': '1', 'b': '2'}
+assert [('a', 1), ('b', 2)] == _format(x)
+
+# Adapted from 3.0 cmd.py; ises "if" comprehension
+def monthrange(ary, dotext):
+    return [a[3:] for a in ary if a.startswith(dotext)]
+
+ary = ["Monday", "Twoday", "Monmonth"]
+assert ['day', 'month'] == monthrange(ary, "Mon")
+
+# From 3.0 cmd.py; uses "if not" comprehension
+def columnize(l):
+    return [i for i in range(len(l))
+            if not isinstance(l[i], str)]
+assert [0, 2] == columnize([1, 'a', 2])

uncompyle6/parsers/parse30.py

@@ -62,6 +62,7 @@ class Python30Parser(Python31Parser):
         # JUMP_IF_TRUE POP_TOP as a replacement
         comp_if       ::= expr jmp_false comp_iter
         comp_if       ::= expr jmp_false comp_iter JUMP_BACK POP_TOP
+        comp_if_not   ::= expr jmp_true  comp_iter JUMP_BACK POP_TOP
         comp_iter     ::= expr expr SET_ADD
         comp_iter     ::= expr expr LIST_APPEND