to_numpy() works in jupyter notebook, but not in python script

[snippsat]

import pandas as pd

pd.__version__

As mention by @scidam you need 0.24 --> for .to_numpy() to work.
I guess if you just remove .to_numpy() it will work on earlier version.

Upgrade:

pip3 install --upgrade pandas

Or as me i have pip point to Python 3.7.
Test from command line with -V

tom@tom:~$ python -V
Python 3.7.3

tom@tom:~$ pip -V
pip 19.1 from /home/tom/.pyenv/versions/3.7.3/lib/python3.7/site-packages/pip (python 3.7)