I need to fix this syntax error with the python3.x below

syntax error with the script:

UnboundLocalError: local variable 'MedRent' referenced before assignment

def somework(RentLevel): if 0

RentLevel = "Low" return RentLeve1 elif 700 < MedRent <=1000:

MedRent = "Med"

elif MedRent > 1000:

RentLevel = "High"

else:

RentLevel = "Unknown"