[Numpy-discussion] Views and Increments

[Marten van Kerkwijk]

Hi Anakim,

The difference is really in the code path that gets taken: in the first
case, you go through `a.__getitem__(np.array([1,6,5])`, in the second
through `a.__setitem__(...)`. The increments would not work if you added an
extra indexing to it, as in:
```
a[np.array([1,6,5])][:] += 1
```

​(which would do `a.__getitem__(...).__setitem__(slice(None))`)

Hope this clarifies it,

Marten
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