Assignment 18 — function introduction

Due October 24

---

Module olio.py

• Complete the implementation of four functions. Program use_olio.py is available to help you test your module olio functions.

---

Function voting_age()

• Does not take any parameters. Returns an integer indicating how old you need to be to vote. For example, the following code segment initializes both x and y to the integer 18.

x = olio.voting_age()

y = olio.voting_age()

---

Function has_blanks( s )

• Has one parameter s. Returns whether s contains at least one blank character; i.e., returns True if s contains a blank, and returns False otherwise. For example, the following code segment initializes b1 and b2 to True and False respectively.

x = 'CS 1112'

y = 'the_aarvark_said_arf_arf'

b1 = olio.has_blanks( x )

b2 = olio.has_blanks( y )

---

Function great_seal()

• Does not have any parameters and does not return a value. The function prints text from the Great Seal of the United States, i.e., E Pluribus Unum.

• The code segment

olio.great_seal( )

print()

olio.great_seal( )

print()

produces as output

E Pluribus Unum

E Pluribus Unum

---

Function a_ing( n )

• Has one parameter n. The function does not perform a return, instead it prints n lines of output. The first line prints a single 'a', the second line prints 'aa', the third line prints 'aaa', and so on. The string operator * should prove useful. For example usage, the code segment

olio.a_ing( 5 )

print()

olio.a_ing( 1 )

print()

olio.a_ing( 3 )

produces as output

a

aa

aaa

aaaa

aaaaa

a

a

aa

aaa

 

---

 

 

 
   
   
   
 

© 2019 Jim Cohoon

Resources from previous semesters are available.