Python function arguments are variables that get passed during the function call. Sometimes, the argument can have a default value. This is useful if no argument value is passed during the call.
This python function has a default value.
echo_word = word1 * echo
shout_word = echo_word + ‘!!!’
return shout_word
The function concatenates copies of a word and three
exclamation marks. It can be called with or without a value for echo. If no value for echo is passed, it assumes the default value of 1.
with_echo = shout_echo(‘Hey’,5)
Functions can also have an unknown number of arguments.
hodgepodge = ”
for word in args:
hodgepodge += word
return hodgepodge
And it works, whether there are one or many arguments.
many_words = gibberish(“luke”, “leia”, “han”, “obi”, “darth”)
This same concept can apply to iterate through key-value pairs.
for key, value in kwargs.items():
print(key + “: ” + value)
Call the function with as many key-value pairs desired.
Finally, there are lambda functions. These are useful for writing anonymous functions on the fly. They are commonly used in the context of the map function.
shout_spells = map(lambda item: item + ‘!!!’, spells)
shout_spells_list = list(shout_spells)
