Ten additional coding tasks · W051–W060
Choose starters to try yourself, or download a separate worked example pack after attempting the tasks.
Chapter 6 starters ↓Chapter 6 worked examples ↓Write a function that returns a greeting for a name.
Use a parameter and return a string.
def greet(name):
return f"Hello, {name}!"
print(greet("Ada"))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Write a function that converts kilometres to metres.
There are 1000 metres in a kilometre.
def kilometres_to_metres(km):
return km * 1000
print(kilometres_to_metres(2.5))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Create a function for a rectangle area calculation.
Return width * height.
def area(width, height):
return width * height
print(area(7, 3))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Create a function that applies a percentage discount.
Subtract the percentage from 100 before multiplying.
def price_after_discount(price, percent):
return price * (100 - percent) / 100
print(f"£{price_after_discount(40, 15):.2f}")
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Write a function to decide whether a positive integer is prime.
Test divisors only up to the square root.
def is_prime(number):
if number < 2:
return False
for divisor in range(2, int(number ** 0.5) + 1):
if number % divisor == 0:
return False
return True
print(is_prime(29))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Calculate a factorial using a function and a loop.
Multiply the numbers from 1 to n, starting from one.
def factorial(n):
total = 1
for i in range(2, n + 1):
total *= i
return total
print(factorial(5))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Create a function that returns None when the divisor is zero.
Check the denominator before dividing.
def safe_divide(a, b):
if b == 0:
return None
return a / b
print(safe_divide(12, 3))
print(safe_divide(12, 0))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Write a function that keeps a number within a minimum and maximum.
Use min() and max() together.
def clamp(value, low, high):
return max(low, min(high, value))
print(clamp(105, 0, 100))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Create a function that returns a tidy full name from two inputs.
strip() removes surrounding spaces; title() adjusts case.
def full_name(first, last):
return first.strip().title() + " " + last.strip().title()
print(full_name(" ada", "LOVELACE "))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.
Write a function that finds the average of a nonempty list.
Return sum(values) / len(values).
def mean(values):
return sum(values) / len(values)
print(mean([4, 6, 8]))
One possible solution. Try writing your own first.
Extension: Change the sample values and test at least two different cases.