from rt import *
######################   Problem 1    ############################
def count_words(s):
    """
        count_words("I eat cake") -> 3
        count_words("") -> 0
        count_words("To be or not to be, that is the question.") -> 10"""
    return 0
######################   Problem 2    ############################
def space_cadet(ch, s):
    """ ch is a character, and s is a string
return a string that repplaces every instance of ch
with a spoace.  This shuould be case SENSITIVE.
example:  space_cadet("a", "panorama") ->"p nor m "
"""
    return ""
######################   Problem 3    ############################
def same_letters(word1, word2):
    """
    return True if the two words have exactly the same 
set of letters (ignore repeats), case insensitive.
same_letters("scatter", "smatter") -> False
same_letters("fail", "FLAIL") -> True

"""
    return False
######################   Problem 4    ############################
def ordered_list(items):
    """items is a list of strings.  
    returns a string with an HTML ordered list.
    example:
ordered_list("cows", "horses", "pigs") ->
<ol>
    <li>cows</li>
    <li>horses</li>
    <li>pigs</li>
</ol>
You can use a triple-quoted string or whack-ns to achieve
the newline effect"""
    return ""
######################   Problem 5    ############################
def is_perfect(n):
    """
        n is a positive integer and n >= 2
        n is perfect if it is the sum of its proper divisors.
        6 has proper divisors 1,2,3 so is_perfect(6) -> True
        12 has proper divisors 1,2,3,4,6, which sum to 22,
        so is_perfect(12) -> False
        Hint: You might want to write a helper function 
        sum_of_proper_divisors(n)
    """
    return False
######################   Problem 6    ############################
def lurks_in(word, search_field):
    """
    word is a string of letters 
    search_field is a string
    returns True if the letters in word can be found in 
    order in the string search_field.  This is case-insensitive
    lurks_in("abcd, "abcessed") -> True
    lurks_in("foot, "flounder of trust") -> True
    lurks_in("dequeue", "defend the queen") -> False"""
    return False
def main():
    print("***************Test Problem 1************")
    s = "I eat cake"
    test = [s]
    expected = 3
    run_test(count_words, expected, test)
    s = ""
    test = [s]
    expected = 0
    run_test(count_words, expected, test)
    s = "To be or not to be, that is the question." 
    test = [s]
    expected = 10
    run_test(count_words, expected, test)
    print("***************Test Problem 2************")
    print("***************Test Problem 3************")
    print("***************Test Problem 4************")
    print(ordered_list(["cats", "dogs", "elephants", "ferrets"]))
    print("***************Test Problem 5************")
    print("***************Test Problem 6************")
main()