INTRODUCTION – Write Effective Code Python

TEST YOUR KNOWLEDGE: INTRODUCTION TO FUNCTIONS

1. In Python, what is a function?

2. Which of the following keywords is essential when defining a function?

3. You want to define a function that performs a status check. Which of the following is a valid header for the function definition?

4. You are responsible for defining a function alert() that prints out the statement “Security issue detected.” Which of the following blocks of code represent the correct indentation for defining and then calling the function?

def alert():
print("Security issue detected.")
alert()

def alert():
    print("Security issue detected.")
alert()     (CORRECT)

def alert():
    print("Security issue detected")
    alert()

    def alert():
print("Security issue detected")
alert()

def alert():
    print("Security issue detected.")
alert()     (CORRECT)

TEST YOUR KNOWLEDGE: ARGUMENTS, PARAMETERS, AND RETURN STATEMENTS

1. Fill in the blank: In the following code, the integers 5 and 12 are _____:

for i in range(5, 12):
    print(i)

for i in range(5, 12):
    print(i)

2. What is the correct way to define the function addition() if it requires the two parameters num1 and num2?

3. Which of the following lines of code has correct syntax for printing the data type of the string “elarson”?

4. Which function definition includes the correct syntax for returning the value of the result variable from the doubles() function?

def doubles(num):
    result = num * 2
    return = result

def doubles(num):
    result = num * 2
    result return

def doubles(num):
    result = num * 2
    return "result"

def doubles(num):
    result = num * 2
    return result     (CORRECT)

def doubles(num):
    result = num * 2
    return result     (CORRECT)

5. The following block of code defines and calls a function. Which component of the code is an argument?

def display_username(username):
    print("Username is", username)
display_username("bmoreno")

TEST YOUR KNOWLEDGE: LEARN FROM THE PYTHON COMMUNITY

1. Which of these is not included in the Python Standard Library?

2. Which of the following resources provides recommendations about including comments in your code?

3. Which of the following code blocks have correct indentation?

if username == "elarson":
    print("Welcome, elarson!") (CORRECT)

if username == "elarson":
print("Welcome, elarson!")

if username == "elarson":
print("Welcome, elarson!")

if username == "elarson":
    print("Welcome, elarson!")

if username == "elarson":
    print("Welcome, elarson!") (CORRECT)

4. What is a Python module?

5. What is the difference between a module and a library in Python?

MODULE 2 CHALLENGE

1. Which of the following choices is a valid header in a function definition?

2. Which of the following calls to the type() function uses correct syntax?

3. What is a parameter?

4. When working in Python, what is a library?

5. What does this line of code return?

print(max(1,3,7))

6. What is returned from the following user-defined function if you pass it the arguments 2 and 3?

def add(num1, num2):
    result = num1 + num2
    return result
add(2, 3)

7. Which of the following choices is a resource that provides stylistic guidelines for programmers working in Python?

8. What should you do when writing comments? Select all that apply.

9. What are built-in functions?

10. Fill in the blank: A Python file that contains additional functions, variables, classes, and any kind of runnable code is called a _____.

11. Fill in the blank: The re, csv, glob, and time modules are all _____.

12. What does this line of code return?

print(sorted(["h32rb17", "p52jb81", "k11ry83"]))

13. What is returned from the following user-defined function if you pass it the argument 9?

def subtract(num):
    total = 100 - num
    return total
subtract(9)

14. What does PEP 8 contain?

15. What is an advantage of including this comment in the following code? Select all that apply.

# For loop iterates to print an alert message 5 times
for i in range(5):
    print("alert")

16. Which of the following statements accurately describe functions? Select all that apply.

17. Fill in the blank: A Python file that contains additional functions, variables, classes, and any kind of runnable code is called a _____.

18. Which of the following components are part of the header in a function definition? Select all that apply.

19. In the following code, what is the argument?

def welcome_user(name):
    print("Welcome," name)
username="elarson"
welcome_user(username)

20. Fill in the blank: A collection of modules that users can access in their programs is a _____.

21. Why are comments useful? Select three answers.

22. What is a function?

23. You imported a Python module, what do you now have access to in Python?

24. What can a style guide help you with when working with Python? Select two answers.

25. Which of the following calls to the sorted() function uses correct syntax?

26. Review the following code. Which of these statements accurately describes name?

def echo(name):
    return name * 3

27. Fill in the blank: Python modules are files that _____.

28. What does this line of code return?

print(type("h32rb17"))

CONCLUSION – Write Effective Code Python