TypeError: unsupported operand type(s)

[Charles Kiss]

For the following function, Is the following error really supposed to be happening??

def A(t,n):
  
    r=a
   
    A=-k*t/(r**n) + k/((b**n)*t)  # Equation (3)
   
    return A

TypeError: unsupported operand type(s) for ** or pow(): 'function' and 'int'

It doesn't happen in emacs. 

Very frustrating that every editor has very different bugs!  Is there a way to fix this,  I tried different imports, nothing seems to work.

[Charles Kiss]

Ignore the above post, I can't delete it.

Sorry I acted out.  Everything is fine. It was all my fault, not the editor's.