Python: Check if a given function returns True for every element in a list
Python List: Exercise - 243 with Solution
Write a Python program to check if a given function returns True for every element in a list.
Use all() in combination with map() and fn to check if fn returns True for all elements in the list.
def every(lst, fn = lambda x: x): return all(map(fn, lst)) print(every([4, 2, 3], lambda x: x > 1)) print(every([4, 2, 3], lambda x: x < 1)) print(every([4, 2, 3], lambda x: x == 1))
True False False
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Next: Write a Python program to initialize a list containing the numbers in the specified range where start and end are inclusive and the ratio between two terms is step. Returns an error if step equals 1.
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Python: Tips of the Day
When we speak of division we normally mean (/) float division operator, this will give a precise result in float format with decimals.
For a rounded integer result there is (//) floor division operator in Python. Floor division will only give integer results that are round numbers.
print(1000 // 300) print(1000 / 300)
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