Fix getitem magic in moving window

[cwasicki]

What happened?

The current getitem magic in the moving window has several bugs, e.g.

• For slices a TypeError is raised for a call of window[-1:] instead of this test case

  frequenz-sdk-python/tests/timeseries/test_moving_window.py

  Line 111 in 892403e

  assert np.array_equal(window[5:14], np.array(data[5:14]))

• For integer indices no wrapping is done, see Fix single element access for moving window #672.

What did you expect instead?

Full list-type indexing support (without steps) of the getitem magic.

Affected version(s)

No response

Affected part(s)

Data pipeline (part:data-pipeline)

Extra information

With #672 and using the window method from #668 in the case of slices it should be possible to fix these problems.

[cwasicki]

For slices a TypeError is raised for a call of window[-1:] instead of this test case

This is equivalent to this test case:

frequenz-sdk-python/tests/timeseries/test_moving_window.py

Line 159 in a06db70

test_eq([1.0], -1, None)

and thereby fixed in current v0.x.x branch.

Also #672 has been merged into v0.x.x.

Therefore closing this issue.