<reponame>oneoffcoder/books
# function with list argument
def concat(names):
    return ','.join(names)


first_names = ['John', 'Jack', 'Joe']
s = concat(first_names)

# function with list argument
def concat(names):
    return ','.join(names)


first_names = ['John', 'Jack', 'Joe']
s = concat(first_names)
# function with list argument