220

 

ASSIGNMENT:

You are going to enhance the prior assignment by doing the following.

• Use list to create a menu (NOT in the library)
• Add a function to the library that will return the results of the four operations in a dictionary object allInOne(n1, n2)

Here is an example of a dictionary:

MLB_team = {'Colorado' : 'Rockies',  'Boston'   : 'Red Sox', 'Minnesota': 'Twins', 'Milwaukee': 'Brewers',

     'Seattle'  : 'Mariners'

 }

res=allInOne(5,2)

The results will be returned in this format.

res is dictionary {"add":7, "sub":3, "mult":10, "div":2.5)

* You must use the function in the library.

from res, you are going to print

5 + 2 = 7

5 - 2 = 3

5 * 2 = 10

5 / 2 = 2.5

Sample menu in the program (not the library)

1) Add two numbers

2) Mult two numbers

3) Divide

4) Scalc

5) all in one ..

6) …

Submission Instructions:

Make sure that you save your code in a text file in this format.

program:

W6_firstname_lastname.py

library:

W6_firstname_lastname_Mylib.py

Hints:

1) library

"""

   comment block

"""

# def functions

def add ...

def sub ....

def mul

def div

def isinrange

def scalc

def allinone

2) Program

import the library as  sam  >>> use your initials <<<

while True:

   try:

         # set limits lr and hr
          lr = input(low limit range)
          hr = input(high limit range)

          # get user lower range and user high range 
          ulr=enter user lower range between the lower limit and high limit
          uhr=enter user high range between the lower limit and high limit

          #check to see in ulr and uhr are in the ranges
          if(sam.checknum(lr,ulr,hr) and sam.checknum(lr,uhr,hr)): 

# Using dictionary object
# a dictionary is a key:value pair data structure
# Here is a simple dictionary

# empty dictionary

fruits = {}  # <<< curly brackets

# dictionary with items

fruits = {"A":"Apple", "B":"Banana", "C":"Coconut"}

#print a value for a key
#from the above; A, B, and C are keys
#print the value of A
print(fruits["A"])

#print the entire dictionary
print(fruits)

#updating dictionary
fruits["C"]="Cashew"

#print the dictionary
print(fruits)

# Creating a function that returns a dictionary
def myfruits():
    return {"A":"Apple", "B":"Banana", "C":"Coconut"}

# using the above function
dFruit = myfruits()
print(dFruit["A"]) # Apple

 # function passing key to get the value
def myfruits2(k):
    myfruits={"A":"Apple", "B":"Banana", "C":"Coconut"}
    return myfruits[k]

# testing myfruits2
print(myfruits2("C")) # Coconut

ADDITIONAL RESOURCES:

In respect to List, take some time to note the following:

• Since there is no native array data structure, use List in Python.
• It may contain more than one element.
• Use a plural to name your List.
• Lists are ordered collections.
• Elements are used to build a List.
• Individual elements are separated by commas.
• Index and positions are used to access any element in the List.
• Python considers the first element in a List as zero or 0, 1 represents the second position in the List, etc.
• Use a simple counting system to decide what to add, subtract, multiply or divide.
• You may use different methods.

Using methods improves your coding efficiency. Below are some commonly used methods:

• append() - Add Single Element to The List
• extend() - Add Elements of a List to Another List
• insert()        - Inserts Element to The List
• remove() - Removes Element from the List
• index()        - returns smallest index of element in list
• count() - returns occurrences of element in a list
• pop() - Removes Element at Given Index
• reverse() - Reverses a List
• sort() - sorts elements of a list
• copy() - Returns Shallow Copy of a List
• clear() - Removes all Items from the List

Explore these methods in your coding while practicing. You may read more about these codes by going to – Python List Methods - https://www.programiz.com/python-programming/methods/list. Remember, much like using loops serve as a foundation for programming, using arrays also serve as a basic expectation for programming.

Assessment Rubric

Exemplary (25-20)

Accomplished
(19-10)

Developing
(9-1))

Beginning
( 0)

Points Available

• Assignment details in a comment block

The student effectively completed the assignment.

The student partially completed the assignment.

The student provided limited and meaningless substance to complete the assignment.

The student failed to complete the assignment.

25

• Use the list to create a menu
• Code comments

The student effectively completed the assignment.

The student partially completed the assignment.

The student provided limited and meaningless substance to complete the assignment.

The student failed to complete the assignment.

25

• Use dictionary/data structure to return more than one value from a function
• Code comments

The student effectively completed the assignment.

The student partially completed the assignment.

The student provided limited and meaningless substance to complete the assignment.

The student failed to complete the assignment.

25

• The print function used to correctly print the solution ( application is running)

The student effectively completed the assignment.

The student partially completed the assignment.

The student provided limited and meaningless substance to complete the assignment.

The student failed to complete the assignment.

25