functions3.py

# Functions should generally do "one" thing. Printing is thing.
# If the core functionality of your function is not printing,
# then avoid printing inside the function and return data instead.
# This leaves your function much more fliexible, and the calling
# code can choose how to use the data.

# return a dictionary
def build_person(first_name, last_name):
    """Return a dictionary of information about a person."""
    person = {'first': first_name, 'last': last_name}
    return person

musician = build_person('jimi', 'hendrix')
print(musician)


# return a built dictionary
def build_person(first_name, last_name, age=''):
    """Return a dictionary of information about a person."""
    person = {'first': first_name, 'last': last_name}
    if age:
        person['age'] = age
    return person

musician = build_person('jimi', 'hendrix', age=27)
print(musician)


# Calling a function from a loop
def get_formatted_name(first_name, last_name):
    """Return a full name, neatly formatted."""
    full_name = first_name + ' ' + last_name
    return full_name.title()

while True:
    print("\nPlease tell me your name:")
    print("(enter 'q' at any time to quit)")
    f_name = input("First name: ")

    if f_name == 'q':
        break

    l_name = input("Last name: ")
    if l_name == 'q':
        break
    formatted_name = get_formatted_name(f_name, l_name)
    print("\nHello, " + formatted_name + "!")