Can i set float128 as the standard float-array in numpy
I don't think there is a central "configuration" you could change to achieve this. Some options what you could do:
If you are creating arrays only by very few of NumPy's factory functions, substitute these functions by your own versions. If you import these functions like
from numpy import emptyyou can just do
from numpy import float128, empty as _emptydef empty(*args, **kwargs): kwargs.update(dtype=float128) _empty(*args, **kwargs)If you are doing
import numpyyou can write a module
mynumpy.pyfrom numpy import *_empty = emptydef empty(*args, **kwargs): kwargs.update(dtype=float128) _empty(*args, **kwargs)and import it like
import mynumpy as numpyRefactor your code to always use
dtype=myfloat. This will make such changes easy in the future. You can combine this approach with the use ofnumpy.empty_like(),numpy.zeros_like()andnumpy.ones_like()wherever appropriate to have the actual data type hardcoded in as few places as possible.Sub-class
numpy.ndarrayand only use your custom constructors to create new arrays.