def apply_discount(product, discount):
price = int(product['price'] * (1 - discount))
assert 0 <= price <= product['price'], 'Invalid Discount!!!'
return price
product = {'name' : 'shoes', 'price' : 50000}
discount = 0.2
apply_discount(product, discount)
40000
product = {'name' : 'shoes', 'price' : 50000}
discount = 2
apply_discount(product, discount)
---------------------------------------------------------------------------
AssertionError Traceback (most recent call last)
<ipython-input-4-7f0c68663e13> in <module>
1 product = {'name' : 'shoes', 'price' : 50000}
2 discount = 2
----> 3 apply_discount(product, discount)
<ipython-input-1-e56f6faa1e5b> in apply_discount(product, discount)
1 def apply_discount(product, discount):
2 price = int(product['price'] * (1 - discount))
----> 3 assert 0 <= price <= product['price'], 'Invalid Discount!!!'
4 return price
AssertionError: Invalid Discount!!!
if (1==2, 'asdf'):
print('이게 참이라고?')
이게 참이라고?
def apply_discount(product, discount):
price = int(product['price'] * (1 - discount))
assert (0 <= price <= product['price'],
'Invalid Discount!!!'
)
return price
<>:3: SyntaxWarning: assertion is always true, perhaps remove parentheses?
<>:3: SyntaxWarning: assertion is always true, perhaps remove parentheses?
<>:3: SyntaxWarning: assertion is always true, perhaps remove parentheses?
<ipython-input-20-9fd86cc4aa6d>:3: SyntaxWarning: assertion is always true, perhaps remove parentheses?
assert (0 <= price <= product['price'],
python 3 버전에서는 이런 경우에 항상 참이라고 error를 띄워줍니다.
product = {'name' : 'shoes', 'price' : 50000}
discount = 2
apply_discount(product, discount)
-50000