Module 4: Functions, Tuples, Dictionaries, Exceptions, and Data Processing

Question 1

What error type do you get when you invoke a function before it’s defined?
Example:

hi()
def hi():
    print("hi!")

Answer 1

NameError

Question 2

What error type do you get when you invoke a function with an unknown variable?
Example:

def hi():
    print("hi")
hi(5)

Answer 2

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

Question 3

What output do you get when you execute the following code:

def adding(a, b, c):
    print(a, "+", b, "+", c, "=", a + b + c)
adding(3, a = 1, b = 2)

Answer 3

TypeError: adding() got multiple values for argument 'a'

Question 4

What output do you get when you execute the following code:

def subtra(a, b):
    print(a - b)
subtra(a=5, 2)  

Answer 4

SyntaxError: positional argument follows keyword argument

Question 5

def add_numbers(a, b=2, c):
    print(a + b + c)

add_numbers(a=1, c=3)

Answer 5

SyntaxError: non-default argument follows default argument

Question 6

What output do you get when you execute the following code:

def strange_function(n):
    if(n % 2 == 0):
        return True
print(strange_function(2))
print(strange_function(1))

Answer 6

True
None

By default a function returns None