Python小白进阶——解决“SyntaxError: non-default argument follows default argument”

代码：

def describe_pets(animal_type = 'dog', pet_name):
    print("\nI have a " + animal_type + ".")
    print("My " + animal_type + "'s name is " + pet_name) 
describe_pets(pet_name = 'kane')

错误提示：
non-default argument follows default argument
原因在于将带默认值的形参放在了不带默认值的形参前面，更改顺序即可。
更改后的代码

def describe_pets(pet_name, animal_type = 'dog'):
    print("\nI have a " + animal_type + ".")
    print("My " + animal_type + "'s name is " + pet_name) 
describe_pets(pet_name = 'kane')