** * This article is from Udemy "[Introduction to Python3 taught by active Silicon Valley engineers + application + American Silicon Valley style code style](https://www.udemy.com/course/python-beginner/" Introduction to Python3 taught by active Silicon Valley engineers + application + American Silicon Valley style code style ")" It is a class notebook for myself after taking the course of. It is open to the public with permission from the instructor Jun Sakai. ** **
positional_argument
def menu(food, drink, dessert):
print('food =', food)
print('drink =', drink)
print('dessert = ', dessert)
menu('beef', 'wine', 'ice cream')
result
food = beef
drink = wine
dessert = ice cream
This time it is entered properly, but
drink to ʻice cream, I dare to mistake dessert for wine`.
argument
def menu(food, drink, dessert):
print('food =', food)
print('drink =', drink)
print('dessert =', dessert)
menu('beef', 'ice cream', 'wine')
result
food = beef
drink = ice cream
dessert = wine
I want to prevent such mistakes.
keyword_argument
def menu(food, drink, dessert):
print('food =', food)
print('drink =', drink)
print('dessert =', dessert)
menu(food='beef', dessert='ice cream', drink='wine')
result
food = beef
drink = wine
dessert = ice cream
By setting the keyword argument, it was printed properly without writing in order.
default_argument
def menu(food='beef', drink='wine', dessert='ice cream'):
print('food =', food)
print('drink =', drink)
print('dessert =', dessert)
menu()
result
food = beef
drink = wine
dessert = ice cream
If you set the default arguments and pass no arguments The set default argument is returned.
default_argument
def menu(food='beef', drink='wine', dessert='ice cream'):
print('food =', food)
print('drink =', drink)
print('dessert =', dessert)
menu(food='chicken', drink='orange juice')
result
food = chicken
drink = orange juice
dessert = ice cream
After setting the default arguments If you pass keyword arguments only for those you want to change from the default arguments, Only that part is changed and returned.
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