Function Outputs None instead of Return

Question

I'm new to functions and cannot figure out why this returns 'None' Essentially the State is a number, so this should input the state and spit out the population. I'll change the format to be more vague and helpful for all once I understand better. Thanks!

def ca_pov(state, spending=0):
  state = person[person.state==state].copy(deep=True)
  total_population = state.weight.sum()

  return
  total_population

print(ca_pov(11))

Answer 1

the total_population was not returned. You have to write the return keyword and the data you want to return next to it.

def ca_pov(state, spending=0):
  state = person[person.state==state].copy(deep=True)
  total_population = state.weight.sum()

  return total_population

print(ca_pov(11))