walrus_operator_1

# Walrus Operator in Python 3.8
# Look this video
# https://www.youtube.com/watch?v=-Rh4XW89VlQ

# The walrus operator is not used to get as many statements on one line
# It's used to prevent calling functions twice or more.


request = {'from': {'username': 'Andre', 'password': input('Please something: ')}}
db = []


def process_from(request):
    """
    Example function
    """
    password = request['from']['password']
    # here we ask for the len of password
    if len(password) > 5:
        db.append(password)
        return 'Added user!'
    else:
        # here we're doing it again
        return f'Password is too short! The provided Password is only {len(password)} chars long'


def process_from_pre38(request):
    """
    Working example for Python <= 3.7
    """
    password = request['from']['password']
    # get the length of password one time
    length = len(password)
    if length > 5: # use length here
        db.append(password)
        return 'Added user!'
    else:
        # and here
        return f'Password is too short! The provided Password is only {length} chars long'


def process_from_walrus(request):
    """
    Same walrus operator
    Requires Python 3.8
    """
    password = request['from']['password']

    if (length := len(password)) > 5:
        db.append(password)
        return 'Added user!'
    else:
        return f'Password is too short! The provided Password is only {length} chars long'



print(process_from(request))
print(process_from_pre38(request))
print(process_from_walrus(request))
print(db)