Python Check if list is sorted

To check if a list is sorted using Python, you can create your own algorithmic logic or use the already inbuilt Python function all();

1. Using brute force

#Python Check if list is sorted
items1 = [5,  7, 8, 9, 10, 11, 23, 34, 54]
items2 = [8, 9, 89, 34, 67, 45, 54, 34, 33]

def is_sorted(items_list):
    #Using brute force
    for i in range(0, len(items_list) - 1):
        if items_list[i] > items_list[i + 1]:
            return  False
    return True

print(is_sorted(items1))
print(is_sorted(items2))

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#Output

True

False

2. Using all method

#Check if list is sorted using Python inbuilt method
def is_sorted_python(items_list):
    return all(items_list[i] <= items_list[i + 1] for i in range(len(items_list) - 1))

print(is_sorted_python(items1))
print(is_sorted_python(items2))

-------------------------------------------------------------------------------------------------------------
#Output
True
False