T9 string to text and vice versa

t9-to-text.py

t9_mapping = {
    '2': 'abc',
    '3': 'def',
    '4': 'ghi',
    '5': 'jkl',
    '6': 'mno',
    '7': 'pqrs',
    '8': 'tuv',
    '9': 'wxyz',
    '0': ' '
}

input_string = input("Enter T9 input: ").split()

text = ""
for char in input_string:
    if char[0] in t9_mapping:
        text += t9_mapping[char[0]][len(char) - 1]  # Get the character based on the number of presses
    else:
        text += char

print()
print(text)

text-to-t9.py

t9_mapping = {
    'abc': '2',
    'def': '3',
    'ghi': '4',
    'jkl': '5',
    'mno': '6',
    'pqrs': '7',
    'tuv': '8',
    'wxyz': '9',
    ' ': '0'
}

input_string = input("Enter text input: ")

output = ""
for char in input_string:
    for key, value in t9_mapping.items():
        if char in key:
            output += value * (key.index(char) + 1) + " "  # Repeat the number based on the position of the character
            break
    else:
        output += char  # If character is not found in mapping, add it as is

print()
print(output)