all() function with a generator expression:
>>> my_list1 = [30, 34, 56] >>> my_list2 = [29, 500, 43] >>> all(i >= 30 for i in my_list1) True >>> all(i >= 30 for i in my_list2) False
Note that this tests for greater than or equal to 30, otherwise
my_list1 would not pass the test either.
If you wanted to do this in a function, you’d use:
def all_30_or_up(ls): for i in ls: if i < 30: return False return True
e.g. as soon as you find a value that proves that there is a value below 30, you return
False, and return
True if you found no evidence to the contrary.
Similarly, you can use the
any() function to test if at least 1 value matches the condition.