Comment utiliser moins et égal dans une instruction assert en python
Question
Quand je lance ce qui suit:
growthRates = [3, 4, 5, 0, 3]
for each in growthRates:
print each
assert growthRates >= 0, 'Growth Rate is not between 0 and 100'
assert growthRates <= 100, 'Growth Rate is not between 0 and 100'
J'obtenir:
3
Traceback (most recent call last):
File "ps4.py", line 132, in <module>
testNestEggVariable()
File "ps4.py", line 126, in testNestEggVariable
savingsRecord = nestEggVariable(salary, save, growthRates)
File "ps4.py", line 106, in nestEggVariable
assert growthRates <= 100, 'Growth Rate is not between 0 and 100'
AssertionError: Growth Rate is not between 0 and 100
Pourquoi est-ce?
La solution
Do:
assert each >= 0, 'Growth Rate is not between 0 and 100'
pas:
assert growthRates >= 0, 'Growth Rate is not between 0 and 100'
Autres conseils
assert 0 <= each <= 100, 'Growth Rate %i is not between 0 and 100.' % each
Votre affirme ne manque pas bien sûr, mais maintenant les growthRates> 100 car growthRates est la liste et 0 est entier et « liste »> « entier ».
assert (each >= 0)
pas assert (growthRates >= 0)
: -)
Vous pouvez également utiliser:
growthRates = [0, 10, 100, -1]
assert all(0<=each<=100 for each in growthRates), 'growthRate is not between 0 and 100'
Traceback (most recent call last):
File "any.py", line 2, in <module>
assert all([0<=each<=100 for each in growthRates]), 'growthRate is not between 0 and 100'
AssertionError: growthRate is not between 0 and 100
test pour chaque lieu de la liste growthRates.
Vous pouvez également utiliser:
growthRates = [3, 4, 5, 0, 3]
testRange = range(0,100)
for each in growthRates:
print each
assert each in testRange, 'Growth Rate is not between 0 and 100'
Licencié sous: CC-BY-SA avec attribution
Non affilié à StackOverflow