Compsci 6, Fall 2011, Classwork 7

Name: __________________________   NetID: _____________

Name: __________________________   NetID: _____________

Name: __________________________   NetID: _____________

Problem:

1. A five letter word is printed by the code below, what is it?

     words = ["self", "contained", "underwater", "breathing", "apparatus"]
     abb = ""
     for w in words:
         abb = abb + w[1]
     print abb  
   
   
   
   
   
   
   
   

2. The code below prints 4, modify it in a good way to print 4.5 which is arguably a "better" value.

       nums = [4,5,4,5,4,5,4,5]
       total = sum(nums)
       print total/len(nums)
   
   
   
   
   
   
   
   

3. What does this function do?

   def changeup(s):
       answer = ""
       for ch in s:
           answer = answer + ch*2
       return answer
   
   
   
   
   
   
   
   

4. Complete the function below.

   def is_vowel(ch):
       '''
       returns True if ch is a vowel (a, e, i, o or u)
       else returns False
       '''
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   

5. Complete the function below. (WE DIDN"T GET TO THIS ONE)

   def allvowels(word):
       """
       returns true if the word is all vowels
       returns false otherwise
       """