Ensure cudf.Series(cudf.Series(...)) creates a reference to the same index

[mroeschke]

Description

Aligns these behaviors

In [1]: import pandas as pd

In [3]: ser1 = pd.Series(range(3), index=list("Abc"))

In [4]: ser2 = pd.Series(ser1)

In [5]: ser1.index is ser2.index
Out[5]: True

In [6]: import cudf

In [7]: ser1 = cudf.Series(range(3), index=list("Abc"))

In [8]: ser2 = cudf.Series(ser1)

In [9]: ser1.index is ser2.index
Out[9]: False

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[vyasr]

Approving the change, but the title is a bit misleading. When I read it I assumed that instead of shallow copying you wanted to deep copy, but in fact we're going the opposite direction. Since the title goes in the changelog, maybe something like "Ensure cudf.Series(cudf.Series(...)) creates a reference to the same index" is more apt?

[mroeschke]

"Ensure cudf.Series(cudf.Series(...)) creates a reference to the same index" is more apt?

Yup sounds good!

[galipremsagar]

/merge