numpy.nan_to_num - 'nan' keyword not recorgnized

Question

When you try to replace nan value with a custom numeric value using following code,

np.nan_to_num(exp_allowance,nan=9999.99) 

it produces following error:

typeerror: nan_to_num() got an unexpected keyword argument 'nan'

Answer 1

After going through several blogs and no answers to it, I discovered that I was using obsolete numpy version.This specific argument is only supported in numpy version 1.17 and above. Those who are facing this issue, check your numpy version:

import numpy
numpy.version.version

if it is below 1.17 then update it the latest using,

pip install numpy --upgrade

It will work.

Answer 2

The command to upgrade should be this:

pip install --upgrade numpy

The --upgrade argument comes before the module name. And if you are using it for a specific Python version, the code would be:

python37 -m pip install --upgrade numpy