Course 5 - functions

The input() function is an example of a:

• user-defined function

• built-in function

What happens when you try to invoke a function before you define it?

example:

hi()

def hi():

print("hi!")

• Python will search the function through the code and after will execute it

• It will return an error

• if after seach the function is not found, then it will ignore it and execute the code below

Answer explanation

NameError: name 'function_name' is not defined

What will happen when you run the code below?

def hi():

print("hi")

hi(5)

• It will print 5 times "hi"

• It will print "hi 5"

• error

Answer explanation

TypeError: hi() takes 0 positional arguments but 1 was given

What is the output of the following snippet?

def intro(a="James Bond", b="Bond"):

print("My name is", b + ".", a + ".")

intro()

Answer explanation

My name is Bond. James Bond.

What is the output of the following snippet?

def intro(a="James Bond", b="Bond"):

print("My name is", b + ".", a + ".")

intro(b="Sean Connery")

Answer explanation

My name is Sean Connery. James Bond.