Workshop: Operators, Booleans, and Conditionals (Optional, Self-Study)¶

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Four optional workshop problems, one per concept step, in a car scenario. The numbers line up with the steps. Self-study: the stubs say WHAT to do; check python-workshop/solutions.

Step-01: Arithmetic¶

Concepts: +, -, *, /, //, %, **.

Problem-1: Car Mileage.

Write a program that, for a distance of 555 and fuel of 12:

• Task-1: print the distance plus the fuel.
• Task-2: print the distance divided by the fuel.
• Task-3: print the whole-number part of that division.
• Task-4: print the remainder of that division.
• Task-5: print the fuel raised to the power 2.

567
46.25
46
3
144

distance = 555
fuel = 12
# Task-1: print the distance plus the fuel
print(distance + fuel)
# Task-2: print the distance divided by the fuel
print(distance / fuel)

# Task-3: print the whole-number part of that division
print(distance // fuel)
# Task-4: print the remainder of that division
print(distance % fuel)

# Task-5: print the fuel raised to power 2
print(fuel ** 2)

Problem-2: Price Helpers.

Write a program that prints the absolute value of -50, then prints the quotient and remainder of 95 divided by 20 together as a pair.

50
(4, 15)

print(abs(-50))
print(divmod(95, 20))

Pages for this step: Concept | Practice | Workshop

Python Files for this step: Concept | Practice | Practice Solutions | Workshop | Workshop Solutions

Step-02: Comparison¶

Concepts: comparison operators (>, ==, <=).

Write a program that, for a speed of 80 and a limit of 60:

• Task-1: print whether the speed is above the limit.
• Task-2: print whether the speed equals the limit.
• Task-3: print whether the speed is 100 or below.

True
False
True

speed = 80
limit = 60
# Task-1: print whether the speed is above the limit
print(speed > limit)
# Task-2: print whether the speed equals the limit
print(speed == limit)
# Task-3: print whether the speed is 100 or below
print(speed <= 100)

Pages for this step: Concept | Practice | Workshop

Python Files for this step: Concept | Practice | Practice Solutions | Workshop | Workshop Solutions

Step-03: Boolean Logic¶

Concepts: and, or, not, all(), any().

Problem-1: Can Drive?

Write a program that, for a fuel of 20 and engine_ok set to True:

• Task-1: print whether there is fuel left and the engine is ok.
• Task-2: print whether the fuel is above 50 or the engine is ok.
• Task-3: print the opposite of engine_ok.

True
True
False

fuel = 20
engine_ok = True
# Task-1: fuel left and engine is ok
print(fuel > 0 and engine_ok)
# Task-2: fuel above 50 or engine is ok
print(fuel > 50 or engine_ok)
# Task-3: print the opposite of engine_ok
print(not engine_ok)

Problem-2: Car Features.

Write a program that, for a list features = [True, False, True] (square brackets hold several values at once; lists get a section of their own next):

• Task-1: print whether every item is true.
• Task-2: print whether at least one item is true.

False
True

features = [True, False, True]
# Task-1: whether every item is true
print(all(features))
# Task-2: whether at least one item is true
print(any(features))

Pages for this step: Concept | Practice | Workshop

Python Files for this step: Concept | Practice | Practice Solutions | Workshop | Workshop Solutions

Step-04: Making Decisions¶

Concepts: if / elif / else.

Write a program that, for a km reading of 18000, prints the service status using if / elif / else: No service yet when under 10000, Service soon when under 20000, Service due when under 30000, and Service overdue otherwise.

Service soon

km = 18000
if km < 10000:
    print("No service yet")
elif km < 20000:
    print("Service soon")
elif km < 30000:
    print("Service due")
else:
    print("Service overdue")

Pages for this step: Concept | Practice | Workshop

Python Files for this step: Concept | Practice | Practice Solutions | Workshop | Workshop Solutions

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