Question

The purpose of this lab is to practice working with Python's higher order functions and ternary operator. Write all of your code in one file named lab2.py. You can write the code for items 1 through 6 directly inside the main function.

Let a be the list of values produced by list(range(1, 11)).

1. [1 point] Using the map function and a lambda argument, write an expression that produces a list of the cubes of the values in a. Assign the result to a variable called m and print m.
2. [1 point] Using the filter function and a lambda argument, write an expression that produces a list of the values in a that are divisible by 3. Assign the result to a variable called f1 and print f1.
3. [1 point] Using the reduce function and a lambda argument, write an expression that returns the result of concatenating all the digits in a. Assign the result to a variable called r1 and print r1. The output from this step is the string '12345678910'
4. [1 point] Use a list comprehension to produce the same list as in question 1 (i.e., the new list will contain the cubes of the values in a).
5. [1 point] Use a list comprehension to produce the same list as in question 2.
6. [1 point] Use a list comprehension to produce a list containing the cubes of the values in a that are divisible by 3. The output from this step is the list [27, 216, 729]
7. [2 points] Write a function named evenFilter that takes as an argument a dictionary of elements indexed by integer keys. Using only a list comprehension, return a list of the values of the elements associated with the keys that are evenly divisible by 2. For example,
   
             >>> data = {1: "one", 3: "three", 4: "four", 5: "five", 8: "eight", 10: "ten"}
             >>> print(evenFilter(data))
             ['four', 'eight', 'ten']
   add this code to your main function to test the evenFilter function
8. [2 points] Write a function named findMin(x, y) that uses the ternary operator (i.e, conditional expression) to find and return the minimum of its two arguments. Assume that x and y are numbers. Add code to main to test this function.

Answer 1

Explanation::

Code in PYTHON is given below

Output is given at the end of the code

Code in PYTHON:

import functools

def evenFilter(data):

  values = []

  for key in data.keys():

    if key%2==0:

      values.append(data[key])

  return values

def findMin(x,y):

  min = x if x < y else y

  return min

def main():

  a = list(range(1,11))

  print(a)

  #Part 1

  m = list(map(lambda x: x**3 , a))

  print(m)

  #Part 2

  f1 = list(filter(lambda x: (x%3 == 0) , a))

  print(f1)

  #Part 3

  r1 = functools.reduce(lambda x, y: '{0}{1}'.format(x, y),a)

  print(r1)

  #Part 4

  listComp = [x**3 for x in a ]

  print(listComp)

  #Part 5

  divisible = [x for x in a if x%3==0]

  print(divisible)

  #Part 6

  divisibleCube = [x for x in listComp if x%3==0]

  print(divisibleCube)

  

  print("Testing evenFilter method:")

  data = {1:"one",3:"three",4:"four",5:"five",8:"eight",10:"ten"}

  print(evenFilter(data))

  print("\nTest findMin() method on 10 and 45")

  print(findMin(10,45))

main()

Output:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

[1, 8, 27, 64, 125, 216, 343, 512, 729, 1000]

[3, 6, 9]

12345678910

[1, 8, 27, 64, 125, 216, 343, 512, 729, 1000]

[3, 6, 9]

[27, 216, 729]

Testing evenFilter method:

['four', 'eight', 'ten']

Test findMin() method on 10 and 45

10

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Thank You!!