Can't unparse code wiht dict unpacking

[nvbn]

When I'm trying to unparse ast with dict unpacking it fails with:

unparse(ast.parse('{1: 1, **x}'))
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-8-d010b38dd24f> in <module>()
----> 1 unparse(ast.parse('{1: 1, **x}'))

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/__init__.py in unparse(tree)
     11 def unparse(tree):
     12     v = cStringIO()
---> 13     Unparser(tree, file=v)
     14     return v.getvalue()
     15 

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in __init__(self, tree, file)
     36         self.future_imports = []
     37         self._indent = 0
---> 38         self.dispatch(tree)
     39         print("", file=self.f)
     40         self.f.flush()

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in dispatch(self, tree)
     64             return
     65         meth = getattr(self, "_"+tree.__class__.__name__)
---> 66         meth(tree)
     67 
     68 

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in _Module(self, tree)
     76     def _Module(self, tree):
     77         for stmt in tree.body:
---> 78             self.dispatch(stmt)
     79 
     80     def _Interactive(self, tree):

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in dispatch(self, tree)
     64             return
     65         meth = getattr(self, "_"+tree.__class__.__name__)
---> 66         meth(tree)
     67 
     68 

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in _Expr(self, tree)
     88     def _Expr(self, tree):
     89         self.fill()
---> 90         self.dispatch(tree.value)
     91 
     92     def _Import(self, t):

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in dispatch(self, tree)
     64             return
     65         meth = getattr(self, "_"+tree.__class__.__name__)
---> 66         meth(tree)
     67 
     68 

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in _Dict(self, t)
    565             self.write(": ")
    566             self.dispatch(v)
--> 567         interleave(lambda: self.write(", "), write_pair, zip(t.keys, t.values))
    568         self.write("}")
    569 

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in interleave(inter, f, seq)
     23         for x in seq:
     24             inter()
---> 25             f(x)
     26 
     27 class Unparser:

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in write_pair(pair)
    562         def write_pair(pair):
    563             (k, v) = pair
--> 564             self.dispatch(k)
    565             self.write(": ")
    566             self.dispatch(v)

/home/nvbn/miniconda3/lib/python3.6/site-packages/astunparse/unparser.py in dispatch(self, tree)
     63                 self.dispatch(t)
     64             return
---> 65         meth = getattr(self, "_"+tree.__class__.__name__)
     66         meth(tree)
     67 

AttributeError: 'Unparser' object has no attribute '_NoneType'

[simonpercivall]

This is (should now be) fixed in v1.6.0. (Please reopen if I missed something.)