PYTHON PROGRAMMING 10

PART 2 – CONDITIONS (IF STATEMENTS)

PROGRAMS

PROGRAM 1 – BOOLEAN OPERATORS (>, >=, <, <=, ==, !=)

print(8 > 0) #True
print(-8 > 2) #False
print(5 < 4) #False
print(0 == 0) #True
print(7 == 3)   #False
print(4 != 3)   #True
print(5 >= 4)   #True
print(2 <= 1)   #False

PROGRAM 2 – ADDING A VARIABLE

a = 7
print(a >= 0) #True
print(-8 > a) #False
print(a == 7) #True
print(a != 7) #False

PROGRAM 3 – AND, OR and NOT (and, or, not)

val = 7
print(val >= 0 and val <= 10) #True
print(val > 100 or val == 7) #True
print(not(val == 8)) #True
 
# Note

# and gives True only if both sides are True

# or gives True if one or more sides are True

# not inverses the value

TASK 1

What will the following statements output to screen? Remember that you can simply execute the code to check your answers.

a) coco = 9 print(coco)

b) yo = 9 print(yo == 5)

c) a = 9 b = 7 print(a > b)

d) x = 12 y = 11 print(x != y)

e) t = 2 u = 4 print(t * t <= u)

f) mark = 72 print("Pass?", mark >= 50)

g) g = 8 h = g == 7 print(h)

h) k = 12 print(k >= 0 and k <= 100)

i) woo = True print(not woo)

j) s1 = True s2 = False s3 = s1 or s2 print(s3)

k) a = True b = 7 c = b != 9 and a print(not c)

PROGRAM 4 – BASIC IF STRUCTURE (if, indenting)

a = 2
if a > 5:
 print("Greater")
 print("Cool")
print("Done")
 
# Try unindenting the Cool line to see how 
# that changes the program.
 
# Also try changing the value of a.

PROGRAM 4B – USING IF

Write a program that will ask the user for their D&D roll value. The user will likely enter a value between 1 and 20.

Your program simply checks if the roll is below 10. If it is, it increases the value by 10. Then, the roll value if outputted back to screen.

This would be equivalent to some effect that stops the user from doing a bad roll.

dice = int(input("Enter your roll"))

if dice < 10:
dice = dice + 10
print(dice)

TASK 2

Write a program that asks the user for a number. If the number is positive, it is simply outputted to screen again. If the entered number is negative, it is made positive and then outputted to screen.

SAMPLE IO

Enter a number. 9

9

SAMPLE IO 2

Enter a number. -3

3

PROGRAM 5 – BASIC IF/ELSE STRUCTURE (if, else)

m = 65
if m >= 50:
 print("Over fifty")
else:
 print("Under fifty")
 
# Try changing the value of m. 
 

PROGRAM 6 – MORE IF/ELSE

#Lego Batman's Security Software
password = "ironman sucks"
 
entered = input("What is the password?")
if (entered == password):
 print("Entry has been granted!")
else:
 print("Access denied")

TASK 3

Write the program that will ask the user for their mark in this course and output either You are passing. or You are failing. Make sure to test different marks to make sure your program works well.

TASK 4

Write the program that will ask the user for a number between 1 and 10 inclusively. If the number is in fact in the range, your program should output Thank you for the number. However, if the number is too low or too high, your program should output Don’t you understand numbers?

PROGRAM 7 – IF/ELIF/ELSE (if, elif, else)

#Car dealership program
 
print("Welcome to Pandemic Motors")
money = float(input("How much money you got?"))
 
if money < 20000:
 print("A used car it is.")
elif money < 40000:
 print("A small car then.")
elif money < 60000:
 print("A medium car or a small truck then.")
elif money < 80000:
 print("Almost any vehicle can be yours.")
else:
 print("You want a Tesla?") 
 
# Note that if statements are designed so
# that you can never execute more than one 
# statement block.
 

TASK 5

Write a program that will ask the user for their IQ and respond with an appropriate message of your choice. Here are the IQ ranges that you should use:

121 and above – gifted (9 %)
111 to 120 – above average (16 %)

90 to 110 – average (52 %)

89 and below – below average (22 %)