Question

Create a Python script file called hw12.py. Add your name at the top as a comment, along with the class name and date. Ex. 1. a. Texting Shortcuts When people are texting, they use shortcuts for faster typing. Consider the following list of shortcuts: For example, the sentence "see you before class" can be written as "c u b4 class". To encode a text using these shortcuts, we need to perform a replace of the text on the left with the text on the right. However, for sequences that are part of each other, such as "be" and "bee", the longer one should be replaced first. We'll assume that the text is provided in all lowercase letters. a. Write a function encode(text) that takes in a parameter representing a text to encode, and returns the encoded text based on the table above. For this purpose, create a dictionary in the function that contains all the entries on the left of the table as keys and the shortcut we the associated value. Write the words with the same shortcut in reverse order of the length, from the longest to the shortest. After that, use a for loop that goes over all the items in the dictionary. For each of them, call the function replace from the text with the key and the value, and store the result back in the variable text: text = text.replace(key, value) After the loop, return the variable text. b. Write a main function where you ask the user for a text to encode, input it, and store it in a variable. Then call the function encode with this variable and output the result. Make a call to the function main somewhere after it. Ex. 2 Arbitrary Parameters Write a function norm that taken an unlimited number of parameters and computes the square root of the sum of these arguments. For example, if we call norm(3, 4), the function should return sqrt(3*3+4*4) = sqrt(25) = 5. You can use the function mySum discussed in class as an example. Add a few tests of this function in the main with a variety of numbers of parameters,

Answer 1

Code Snippets :

(1) Texting shortcuts

Output :

Raw Code :

"""Longer words are placed at first in the dict"""
shortcuts = {"at":"@", "and" : "&", "one":"1", "won":"1", "too":"2", "to":"2", "two":"2", \
           "four":"4", "fore":"4", "for":"4", "bee":"b", "bea":"b", "be":"b", "sea":"c", "see":"c", "eye":"i",\
           "are":"r", "you":"u", "why":"y"}

def encode(text):
   """Replacing the text with the shortcut"""
   for key in shortcuts:
       text = text.replace(key, shortcuts[key])
   return text

def main():
   """Printing the encoded function"""
   input_text = input("Enter text to encode : ")
   encoded_text = encode(input_text)
   print("Encoded Result Text : ", encoded_text)

main() #Calling the main function

(2) Arbitrary Parameters

Output :

Raw Code :

from math import sqrt
def norm(*args): #*args is used to take any number of arguments
   total_sum = 0
   for i in args:
       total_sum += i**2 #squares of each argument
   return sqrt(total_sum) #returing the sqrt of sum of squares of all arguments
print(norm(3, 4)) #printing norm