Create a file named convert_days.py.

On the first line, let's declare the user input. It's an integer, so we cast the string we get from the input function:

days = int(input("Number of days:"))

We can then calculate the number of years in that set of days. We floor divide to get an integer:

years = days // 365

Next, we convert the remaining days that weren't converted to years into weeks:

weeks = (days % 365) // 7

Then, we get any remaining days that weren't converted to weeks:

days = days - ((years * 365) + (weeks * 7))

Finally, we'll print everything out:

print("Years:", years)
print("Weeks:", weeks)
print("Days:", days)

We can then save and run the script by using the python convert_days.py command.

'g'

'9'

'fright'

' 1, 2, 3'

'A man, a plan, a canal: Panama'

Create a file named convert_to_uppercase.py.

On the first line, we'll request the user for the string to convert:

string = input("String to convert: ")

On the next line, we'll request the number of last letters to convert:

n = int(input("How many last letters should be converted? "))

Next, we'll get the first part of the string:

# First part of the string
start = string[:len(string) - n]

Then, we'll get the last part of the string, that is, the one we'll be converting:

# last part of the string that we're converting.
end = string[len(string) - n:]

Then, we will concatenate the first and last part back together with the last substring transformed:

print(start + end.upper())

Finally, we can run the script with the python convert_to_uppercase.py command.

Create a file named count_occurrences.py.

We'll take in the user inputs for the sentence and the query:

sentence = input("Sentence: ")
query = input("Word to look for in sentence: ")

Next, we'll sanitize and format our inputs by removing the whitespace and converting them to lowercase:

# sanitize our inputs
sentence = sentence.lower().strip()
query = query.lower().strip()

We'll count the occurrences of the substring by using the str.count() method:

num_occurrences = sentence.count(query)

Then, we will print the results:

print(f"There are {num_occurrences} occurrences of '{query}' in the sentence.")

You can run the script by using the python count_occurrences.py command.

Create a file named get_first_n_elements.py.

On the first line, we'll create the array:

array = [55, 12, 37, 831, 57, 16, 93, 44, 22]

Next, we'll print the array out and fetch user input for the number of elements to fetch from the array:

print("Array: ", array)
n = int(input("Number of elements to fetch from array: "))

Finally, we'll print out the slice of the array from the first element to the nth element:

print(array[0: n])

Then, we'll run the script by using the python get_first_n_elements.py command.

The code block with the missing Boolean operator is added:

n = 124
if n % 2 == 0:
    print("Even")

The code block with the missing Boolean operator is added:

age = 25
if age >= 18:
    print("Here is your legal pass.")

The code block with the missing Boolean operator is added:

letter = "b"
if letter not in ["a", "e", "i", "o", "u"]:
  print(f"'{letter}' is not a vowel.")