[Python] Add writable argument in pyarrow.Array.to_pandas

[mroeschke]

Describe the enhancement requested

I figure that when calling pyarrow.Array.to_pandas, there's an effort to maintain the zero-copy conversion by making the underlying numpy data not writeable.

In [4]: import pyarrow as pa

In [5]: import datetime

In [6]: pa.array([datetime.datetime(2020, 1, 1)]).to_pandas().array._ndarray.flags
Out[6]: 
  C_CONTIGUOUS : True
  F_CONTIGUOUS : True
  OWNDATA : False
  WRITEABLE : False
  ALIGNED : True
  WRITEBACKIFCOPY : False

It would be nice if there was an option to allow the underlying data writeable like the writable option in to_numpy

Component(s)

Python