salary = employees['Salary']

    if Salary > 50000:
        print('Over £50,000')
    else:
        print('Under £50,000')

def SalaryCheck():
        if Salary > 50000:
            print('Over £50,000')
        else:
            print('Under £50,000')

    employees.Salary.apply(SalaryCheck)


    Traceback (most recent call last):
      File "<input>", line 1, in <module>
      File "C:UsersPeterPycharmProjectsuntitledvenvlibsite-                        packagespandascoregeneric.py", line 1556, in __nonzero__
        self.__class__.__name__
    ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().

Traceback (most recent call last):
      File "<input>", line 1, in <module>
      File "C:UsersPeterPycharmProjectsuntitledvenvlibsite-        packagespandascoreseries.py", line 4038, in apply
        mapped = lib.map_infer(values, f, convert=convert_dtype)