for i in range(parts(parts[parts_idx]),parts[parts_idx+1]): TypeError: '_Array' object is not callable

This error occurs when you try to call an array object as if it were a function.

In the given code, it seems like the variable `parts` is an array, and the `range()` function is being used to loop through a range of values based on the values in the array. However, the syntax used to access the elements of the array is incorrect.

Assuming that `parts_idx` is an integer index variable, the correct syntax to access the elements of the `parts` array would be `parts[parts_idx]` and `parts[parts_idx+1]`.

So, the corrected code would be:

for i in range(parts[parts_idx], parts[parts_idx+1]):
    # code to be executed

This will loop through a range of values starting from the value at index `parts_idx` and ending at the value at index `parts_idx+1` in the `parts` array.