Indentation error when running python code in VS Code

This is a very common problem. You need to use 4 white spaces instead of using a tab. But make sure you are consistent and follow this style everywhere. Similarly, you can use tabs all the way but do not mix white spaces with the tabs as stated in the comment by Error – Syntactical Remorse.

The code needs to be consistent in the usage of tabs and spaces. The entire code can use 4 white spaces or the entire code can use tab, but not a mix of both.

In Visual Studio Code do CTRL + SHIFT + P and type in “indentation”. You will see options for converting indentation: Convert Indentation to Spaces or Convert Indentation to Tabs. Select one and stick with your chosen indentation.

Yeah A few things weren’t indented correctly like the last return translated
I fixed it you can diff check for the difference, python doesn’t like it when you are inconsistent with indentations

MAX_KEY_SIZE = 26


def getMode():
    while True:
        print('Do you wish to encrypt or decrypt a message?')
        mode = input().lower()
        if mode in 'encrypt e decrypt d'.split():
            return mode
        else:
            print('Enter either "encrypt" or "e" or "decrypt" or "d".')


def getMessage():
    print('Enter your message:')
    return input()


def getKey():
    key = 0
    while True:
        print('Enter the key number (1-%s)' % (MAX_KEY_SIZE))
        key = int(input())
        if (key >= 1 and key <= MAX_KEY_SIZE):
            return key


def getTranslatedMessage(mode, message, key):
    if mode[0] == 'd':
        key = -key
        translated = ''

    for symbol in message:
        if symbol.isalpha():
            num = ord(symbol)
            num += key

    if symbol.isupper():
        if num > ord('Z'):
            num -= 26
    elif num < ord('A'):
        num += 26
    elif symbol.islower():
        if num > ord('z'):
            num -= 26
    elif num < ord('a'):
        num += 26

        translated += chr(num)
    else:
        translated += symbol
        return translated

mode = getMode()
message = getMessage()
key = getKey()
print('Your translated text is:')
print(getTranslatedMessage(mode, message, key))

Forgetting a semicolon at the end of the function definition produces the same error.