def process_operation():
loop_back = 'y'
while loop_back == 'y':
# user input to select operation type
print("\nSelect operation")
print("1. Add two lists")
print("2. Add two lists the Guido van Rossum's way")
print("3. Even numbers in a list")
print("4. Even numbers in a list the Guido van Rossum's way")
print("5. Odd numbers in a list")
print("6. Odd numbers in a list the Guido van Rossum's way")
print("7. Max value in a list")
print("8. Min value in a list")
print("9. Fibonacci of numbers in a list using recursion")
print(
"10. Fibonacci of numbers in a list using recursion and memorisation"
)
print("11. Fibonacci sequence generator up to n elements")
print(
"12. Square generator of a list of numbers the Guido van Rossum's way"
)
try:
choice = int(input("\nEnter choice: "))
if choice in range(1, 3):
try:
lst1 = [
eval(num) for num in input(
"Enter the numbers of the first list separated by space: "
).strip().split()
]
lst2 = [
eval(num) for num in input(
"Enter the numbers of the second list separated by space: "
).strip().split()
]
if choice == 1:
print("\nThe added values are: ",
Calculator.add(lst1, lst2))
elif choice == 2:
print("\nThe added values are: ",
Calculator.add_lst_comp(lst1, lst2))
except (NameError, SyntaxError, TypeError):
print("\nWarning: only enter numbers")
elif choice in range(2, 13):
try:
lst = [
eval(num) for num in input(
"Enter the list numbers separated by space: ").
strip().split()
]
if choice == 3:
print("\nThe even numbers are: ", Calculator.even(lst))
elif choice == 4:
print("\nThe even numbers are: ",
Calculator.even_lst_comp(lst))
elif choice == 5:
print("\nThe odd numbers are: ", Calculator.odd(lst))
elif choice == 6:
print("\nThe odd numbers are: ",
Calculator.odd_lst_comp(lst))
elif choice == 7:
print("\nThe maximum value is: ",
Calculator.max_value(lst))
elif choice == 8:
print("\nThe minimum value is: ",
Calculator.min_value(lst))
elif choice == 9:
print("\nThe fibonacci numbers are: ",
Calculator.fib_recursion(lst))
elif choice == 10:
print("\nThe fibonacci numbers are: ",
Calculator.fib_recursion_memo(lst))
elif choice == 11:
fibonacci = Calculator.fib_gen(lst)
answer = 'y'
while answer == 'y':
try:
print("\nThe next fibonacci is",
next(fibonacci))
answer = input(
"Do you want to see the next fibonacci'y/n'? "
)
except StopIteration:
print(
"\nYou have now seen all fibonacci numbers"
)
answer = input(
"Enter 'n' to exit fibonacci numbers: ")
elif choice == 12:
square = Calculator.square_gen_comp(lst)
answer = 'y'
while answer == 'y':
try:
print("\nThe next square is", next(square))
answer = input(
"Do you want to see the next square number'y/n'? "
)
except StopIteration:
print("\nYou have now seen all square numbers")
answer = input(
"Enter 'n' to exit square numbers: ")
except (NameError, SyntaxError, TypeError):
print("\nWarning: only enter numbers")
# Any other choice that is not in the expected list
except ValueError:
print("\nWarning: choice must be an integer between 1 and 12")
# user input for loop_back
loop_back = input("\nDo you want to compute another operation 'y/n'? ")
def test_square_gen_comp(self):
lst = [-2, 3, 4, 5]
results = [4, 9, 16, 25]
square = Calculator.square_gen_comp(lst)
for i in lst:
self.assertEqual(results[lst.index(i)], next(square))