go-python / go-python/gpython

NotImplemented comparison generate TypeError

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Description

TypeError occurs when comparing NotImplemented value from execution result.

### Expected result (cpython)
```python
>>> range(0).__ne__(2) == NotImplemented
True
```

### Actual result
```python
>>> range(0).__ne__(2) == NotImplemented
Traceback (most recent call last):
File "", line 1, in
FIXME line of source goes here
TypeError: "unsupported operand type(s) for ==: 'NotImplementedError' and 'NotImplementedError'"
```

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