in python please

strain = stress/elasticity modulus

7. Write a function that takes the variables: load (in N), diameter (in m), elastic modulus (in GPa), and yield_strength (in MPa). The function should return "not elastic" if the applied stress is greater than the yield_strength and return the strain if the applied stress is less than or equal to the yield_strength. The strain should be calculated using Hooke's law