On Sun, Jun 20, 2021, at 20:46, Gagandeep Singh wrote:
> I have recently joined the mailing list and have gone through the previous
> discussions on this thread. I would like to share my analysis (advantages and
> disadvantages) of three possible alternatives (Enum, String, boolean) to
> support the proposed feature.
Thanks for this thorough analysis, Gagandeep!
I'll throw one more heretical idea out there:
`np.copy.IF_NEEDED`, `np.copy.ALWAYS`, `np.copy.NEVER`.
This has the advantages of the enum, doesn't pollute the global namespace, and
has an intuitive name.
`np.array(x, copy=np.copy.ALWAYS)`
It would be slightly more awkward to type, but is doable. A rough Python
version sketch would be:
class CopyFlag(enum.Enum):
IF_NEEDED = 0
ALWAYS = 1
NEVER = 2
class NpCopy:
IF_NEEDED : CopyFlag = CopyFlag.IF_NEEDED
ALWAYS : CopyFlag = CopyFlag.ALWAYS
NEVER : CopyFlag = CopyFlag.NEVER
def __call__(self, x):
return ...whatever copy returns...
np.copy = NpCopy()
Stéfan
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