Using the sum method of a numpy array raises a KeyError

[EtienneDesticourt]

Hi,

Installed from the master branch in a virtual environment using python 3.8 on Linux.

How to replicate:

• Type in the mathinspector console:

import numpy as np
x = np.array([1, 2, 3])
x.sum()

A KeyError is raised:

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/***/MathInspector/venv/lib/python3.8/site-packages/mathinspector/util/vdict.py", line 37, in __getitem__
    return self.store[key]
KeyError: '__builtins__'

np.sum(x) and sum(x) both work without errors.

Thank you.