TypeError: 'NoneType' object is not iterable when testing equality of repeated composite or scalar

[parthea]

Steps to reproduce

Repeated Composite

>>> import proto
>>> class Foo(proto.Message):
...     bar = proto.Field(proto.INT32, number=1)
... 
>>> class Baz(proto.Message):
...     foos = proto.RepeatedField(proto.MESSAGE, message=Foo, number=1)
... 
>>> baz = Baz(foos=[Foo(bar=42)])
>>> assert baz.foos != None

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/google/home/partheniou/git/proto-plus-python/proto/marshal/collections/repeated.py", line 63, in __ne__
    return not self == other
  File "/usr/local/google/home/partheniou/git/proto-plus-python/proto/marshal/collections/repeated.py", line 121, in __eq__
    if super().__eq__(other):
  File "/usr/local/google/home/partheniou/git/proto-plus-python/proto/marshal/collections/repeated.py", line 52, in __eq__
    return tuple(self.pb) == tuple(other)
TypeError: 'NoneType' object is not iterable

Repeated Scalar

>>> import proto
>>> class Foo(proto.Message):
...     bar = proto.RepeatedField(proto.INT32, number=1)
... 
>>> foo = Foo(bar=[1, 1, 2, 3, 5, 8, 13])
>>> assert foo.bar != None

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/google/home/partheniou/git/proto-plus-python/proto/marshal/collections/repeated.py", line 63, in __ne__
    return not self == other
  File "/usr/local/google/home/partheniou/git/proto-plus-python/proto/marshal/collections/repeated.py", line 52, in __eq__
    return tuple(self.pb) == tuple(other)
TypeError: 'NoneType' object is not iterable