def only_odds(alist):   # function to determine odd numbers
    odd_list = []   # empty list to contain the odd numbers
    for num in alist:   # for loop to loop through all numbers in the list and determine the odd ones
        if num % 2 != 0:  # condition to check if the number is odd or even
            odd_list.append(num)

    return odd_list  # returns a list containing only odd numbers


print(only_odds([1, 2, 3, 4, 5, 6, 7, 8, 9]))