[Python][Numpy] ValueError: Integers to negative integer powers are not allowed.

The code snippet is as follows:

>>> for c in np.arange(-5, 5):
...     lr = LogisticRegression(C=np.int(10**c), random_state=0) 
... 
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
ValueError: Integers to negative integer powers are not allowed.
>>> 

To fix that error, the for block will be:

>>> for c in np.arange(-5, 5, dtype=float):
...     lr = LogisticRegression(C=10**c, random_state=0)
... 
>>>