Call a funtion from another file

[neetuyadav1810]

Hey! I have two files justatry.py and hydr.py I want to call a function named Transform from hydr.py in justatry.py I am using this code:
import hydr
hydr.Transform

but while running it shows except ValueError
Please tell me how can I fix it.

[bvdet]

There is no way we can determine the cause of the error because you have not provided any information. Here's an example of a ValueError:

>>> math.acos(5)
Traceback (most recent call last):
  File "<interactive input>", line 1, in <module>
ValueError: math domain error
>>>