This assignment includes 4 tasks.

Write a function that analyzes a given string:

Create a function:

def process_text(s):

The function receives a string s and returns a dictionary with the following keys:

1. "length" -- the length of the string.
2. "vowels" -- the number of English vowels (a, e, i, o, u).
3. "uppercase_letters" -- a list of all uppercase letters in the string (use a list comprehension).
4. "words_lengths" -- a list containing the lengths of all words in the string (also using a list comprehension).

• If the string is empty, raise a ValueError.
• Write code that:
  • reads a string from the user,
  • calls process_text,
  • and prints the resulting dictionary.

Write a function:

def repeat_frame(text, times=3, left='[', right=']'):

The function returns a string where text appears times times. Each appearance is wrapped with left and right, and the wrapped parts are separated by commas.

Example:

repeat_frame("hi", times=2, left="<<", right=">>")

returns:

"<<hi>>, <<hi>>"

• Show 3 example calls:
  1. Using only default values
  2. Changing times
  3. Changing only the framing characters
• Ensure the function works correctly when only some parameters are supplied.

Write a recursive function:

def digit_sum(n):

that computes the sum of digits of a positive integer n.

• If n is negative, raise a ValueError.
• Write another recursive function:

def count_digit(n, d):

that returns how many times the digit d appears in n.

Write a program that asks the user to enter a list of integers (separated by spaces), and then processes the list.

1. Read user input using input().
2. Convert the input into a list of integers. If any value is invalid, print an error and ask again.
3. Use a list comprehension to create a list containing only the negative numbers.
4. Write a function that returns the maximum value in the list (without using max()).
5. Print:
   • the original list
   • the list of negative numbers
   • the largest number in the list

Submit a single .py file containing:

• All tasks fully implemented
• Short explanations (as Python comments) next to your code

Write clean, simple, Python code.