Fruit Matching Program.py

a = ["apple", "pear", "orange"]
b = ["apple", "orange", "grape"]

"""
This program matches fruits between two lists, noting their indices or marking them as None if absent in either list.
Output will be:
[(0, 0, 'apple'), (1, None, 'pear'), (2, 1, 'orange'), (None, 2, 'grape')]
"""

enumerated_a = list(enumerate(a))
enumerated_b = list(enumerate(b))

def find_fruit_number(fruit, enumerated_list):
    for index, value in enumerated_list:
        if value == fruit:
            return index
    return None

#print("test", find_fruit_number("pear", enumerated_b))

result = []

for i in range(len(enumerated_a)):
    a_index, a_value = enumerated_a[i]
    b_index = find_fruit_number(a_value, enumerated_b)
    result.append((a_index, b_index, a_value))

for i in range(len(enumerated_b)):
    b_index, b_value = enumerated_b[i]
    a_index = find_fruit_number(b_value, enumerated_a)
    if a_index is None:
        result.append((None, b_index, b_value))

print(result)

#result.sort(key=lambda x: x[0] if x[0] else 1000 )

def print_table(result):
    print("+-------+-------+--------+")
    print("| Index A | Index B| Fruit |")
    print("+-------+-------+--------+")
    for item in result:
        a_index, b_index, fruit = item
        #print(f"| {a_index if a_index is not None else '-':^6} | {fruit:^6} | {b_index if b_index is not None else '-':^6}  |")
        print(a_index, "\t", b_index, "\t", fruit)
    print("+-------+-------+--------+")

print_table(result)