Crash Course on Python Coursera Week 3

Crash Course on Python Coursera Week 3- Full solved Google IT Automation with Python 2022

Module 3 Graded Assessment

Latest Submission Grade 100%

For Video Explaination :

1.

Question 1

Fill in the blanks of this code to print out the numbers 1 through 7.

1 / 1 point

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number = 1

while number <= 7:

    print(number)

    number+=1

Correct

Nice job! You're really getting the hang of what goes into
the while loops!

2.

Question 2

The show_letters function should print out each letter of a word on a separate line. Fill in the blanks to make that happen.

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def show_letters(word):

    for i in word:

        print(i)

 

show_letters("Hello")

# Should print one line per letter

Correct

Great job! You're working the "for" loops the way they're
supposed to be done!

3.

Question 3

Complete the function digits(n) that returns how many digits the number has. For example: 25 has 2 digits and 144 has 3 digits. Tip: you can figure out the digits of a number by dividing it by 10 once per digit until there are no digits left.

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def digits(n):

    count = 0

    if n==0:

      count=1

    while (n>=1):

        count+=1

        n/=10

    return count

    

print(digits(25))   # Should print 2

print(digits(144))  # Should print 3

print(digits(1000)) # Should print 4

print(digits(0))    # Should print 1

Correct

Woohoo! You've cracked the code of writing code!

4.

Question 4

This function prints out a multiplication table (where each number is the result of multiplying the first number of its row by the number at the top of its column). Fill in the blanks so that calling multiplication_table(1, 3) will print out:

1 2 3

2 4 6

3 6 9

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def multiplication_table(start, stop):

    for x in range(1,start+stop):

        for y in range(1,stop+1):

            print(str(x*y), end=" ")

        print()

 

multiplication_table(1, 3)

# Should print the multiplication table shown above

Correct

Awesome! You've stepped up to the challenge of one of the
more complex coding practices, nested loops!

5.

Question 5

The counter function counts down from start to stop when start is bigger than stop, and counts up from start to stop otherwise. Fill in the blanks to make this work correctly.

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def counter(start, stop):

    x = start

    if x>stop:

        return_string = "Counting down: "

        while x >= stop:

            return_string += str(x)

            if x!=stop:

                return_string += ","

            x-=1

    else:

        return_string = "Counting up: "

        while x <= stop:

            return_string += str(x)

            if x!=stop:

                return_string += ","

            x+=1

    return return_string

 

print(counter(1, 10)) # Should be "Counting up: 1,2,3,4,5,6,7,8,9,10"

print(counter(2, 1)) # Should be "Counting down: 2,1"

print(counter(5, 5)) # Should be "Counting up: 5"

Correct

You nailed it! You've figured out all of the situations that
need to be considered!

6.

Question 6

The loop function is similar to range(), but handles the parameters somewhat differently: it takes in 3 parameters: the starting point, the stopping point, and the increment step. When the starting point is greater than the stopping point, it forces the steps to be negative. When, instead, the starting point is less than the stopping point, it forces the step to be positive. Also, if the step is 0, it changes to 1 or -1. The result is returned as a one-line, space-separated string of numbers. For example, loop(11,2,3) should return 11 8 5 and loop(1,5,0) should return 1 2 3 4. Fill in the missing parts to make that happen.

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def loop(start, stop, step):

    return_string = ""

    if step == 0:

      step=1

        #if start>0:

          #start=1

        #else:

          #start=-1

    if stop<start:

        step = abs(step) * -1

    else:

        step = abs(step)

    count=start

    for count in range(start,stop,step):

      return_string += str(count) + " "

      

    return return_string.strip()

 

print(loop(11,2,3)) # Should be 11 8 5

print(loop(1,5,0)) # Should be 1 2 3 4

print(loop(-1,-2,0)) # Should be -1

print(loop(10,25,-2)) # Should be 10 12 14 16 18 20 22 24 

print(loop(1,1,1)) # Should be empty

Correct

Woohoo! You’re looping through the numbers backwards and
forwards, like a pro!

7.

Question 7

The following code raises an error when executed. What's the reason for the error?

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def decade_counter():

    while year < 50:

        year += 10

    return year

1 / 1 point

Incrementing by 10 instead of 1

Failure to initialize variables

Nothing is happening inside the while loop

Wrong comparison operator

Correct

Well done! The variable year needs to be initialized prior to being used in the while loop.

8.

Question 8

What is the value of x at the end of the following code?

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for x in range(1, 10, 3):

    print(x)

1 / 1 point

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Correct

You got it! The upper limit of a range isn’t included, which means that the loop stops before reaching it. The increment is 3, so the loop stops when x reaches 7.

9.

Question 9

What is the value of y at the end of the following code?

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for x in range(10):

    for y in range(x):

        print(y)

1 / 1 point

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Correct

Great job! The upper limit of a range isn’t included, which means that the outer loop goes up to 9, so the highest upper limit for the inner loop is 9, which is also not included.

10.

Question 10

How does this function need to be called to print yes, no, and maybe as possible options to vote for?

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1 / 1 point

votes("yes", "no", "maybe")

votes(yes, no, maybe)

votes([yes, no, maybe])

votes(['yes', 'no', 'maybe'])

Correct

Excellent! This function is looking for one argument, and the list of strings is just one argument.