Download Lab Exercise #3

Introduction to Computer Programming
NAME:_______________________
Lab Exercise #3
Use Python (IDLE) to test your answers to the following lab exercises.
1. Write down the Python programming constructs that produce the desired
output. Use IDLE in either interactive mode or script mode to verify
your answers.
a. Write a single Python statement generates the sequence [0, 2, 4,
6, 8, 10].
b. Write a single Python statement that generates the sequence [-5,
-4, -3, -2, -1, 0, 1, 2, 3, 4, 5].
c. Write a single Python statement that generates the sequence [5,
4, 3, 2, 1, 0, -1, -2, -3, -4, -5].
d. Write a for loop that outputs the sequence 1, 2, 4, 8, 16, 32,
64, 128, 256, 512, 1024
e. Write a for loop that outputs the sequence 1, 0, 1, 0, 1, 0, 1,
0, 1, 0
f. Write a Python code fragment using for loops that outputs the
sequence 1, 2, 6, 24, 120, 720
2. Write a small Python program that reads a string from standard input
and displays the length of the string. This will repeat until the
input string has a length of zero.
3. Write a Python program that decomposes an input string into a vowel
string and an “other” string. Read one string from standard input
and loop for every character in the input string. If the string
element is a vowel, then concatenate the letter to the vowel string.
If the string element is not a vowel, then concatenate the letter to
the “other” string. At the end of processing all string elements,
print the vowel string and the other string.
4. Using the following tuple
days = (“Sun”, “Mon”, “Tue”, “Wed”, “Thu”, “Fri”, “Sat”)
a. Write a Python statement that will print out the week days
b. Write a single Python statement that will print out the weekend
days.
5. Given the following Python tuple statement,
days = (“Mon”, “Tue”, “Wed”, “Thu”, “Fri”, “Sat”, “Sun”)
Using slicing and concatenation, write the Python statements that
would transform the days tuple into the following.
days = (“Sun”, “Mon”, “Tue”, “Wed”, “Thu”, “Fri”, “Sat”)