IS Write a function named number_of_pairs whose parameter is an object/dictionary with strings as keys and integers as values. Your function should returns the number of key-value pairs in the arameter.
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- 13. While dictionaries are designed so that we can find a value based on a key, every so often we need to perform a reverse lookup. For example, imagine a dictionary where the keys are names and the values are phone numbers. Usually we want to find the phone number based on the name, but occasionally you might need to find a name based on the phone number. Write a function called reverse_lookup(dictionary, value) that returns all the keys in the dictionary associated with the specified value. Note: In dictionaries, the keys are guaranteed to be unique, but the values are not. So your function should return a list containing all of the matching keys (if any) Example: Given this dictionary, groups = {'Apple': 'Fruit', 'Spinach': 'Vegetable', 'Banana': 'Fruit'} reverse_lookup (groups. Vegetable') ["Spinach'] reverse_lookup (groups, Fruit') ['Apple'. 'Banana'] reverse_lookup (groups. 'Meat') []1. Write a function invert_dict to reverse a dictionary, for example: >>> eng2sp = {'one': 'uno', 'two': 'dos', 'three': 'tres'} >>> sp2eng = invert_dict(eng2sp) >>> sp2eng {'uno':'one', 'dos':'two', 'tres':'three'} 2. Write a function print_dict to print all the key-values in a dictionary, for example: >>> d2 {'a': 'one', 'b': 'two', 'c': 'Three'} >>> print_dict(d2) a:one b:two c:ThreeIn python make a function with the parameter of a dict[str, str] the function will simply invert the dictionary do not use .get, .item, .values, or import builtins If you encounter more than one of the same key when trying to invert the key and value, raise a keyerror for example ['john': 'white', 'garcia': 'white'], should trigger the raise KeyError call
- Write a function called list_to_dict(lst) that takes a 2-D list of sales records of this form.[["customer1", "bread", 5], ["customer2", "bread", 4.5], ["customer1", "egg", 6.75]]Your function will store the sales information in a dictionary, where each {key:value} pair of the dictionary stores {a unique customer: [ a list of all products purchased by this customer, total cost of these products]}, and returns the dictionary. Sample run,sales = [ ["customer1", "bread", 5], ["customer2", "bread", 4.5], ["customer1", "egg", 6.75],["customer2", "milk", 4.35], ["customer3", "egg", 3.6], ["customer4", "bread", 4.5],["customer1", "milk", 4.35], ["customer2", "egg", 3.6], ["customer4", "milk", 4.35] ]>>> record = list_to_dict(sales)>>> display(record)customer1 : [['bread', 'egg', 'milk'], 16.1]customer2 : [['bread', 'milk', 'egg'], 12.45]customer3 : [['egg'], 3.6]customer4 : [['bread', 'milk'], 8.85]As part of this assignment, the program that you will be writing will store current grades in a dictionary using course codes as keys and with values consisting of percent grades in lists. The main functions of this program are to print a student's gradebook, to drop the lowest grade in each course, print the student's gradebook again, drop the course with lowest average, and finally printing the student's gradebook again. This program requires a main function and a custom value-returning function. In the main function, code these basic steps in this sequence (intermediate steps may be missing): start with an empty dictionary that represents a gradebook and then use a while loop to allow the input of course codes from the keyboard. End the while loop when the user presses enter without entering data.within the while loop:for each course entered, use a list comprehension to generate five random integers in the range of 70 through 100. These random integers in a list represent the…I am struggling with this program question for the last few hours. Could you please assist? Write a program that prompts user to enter make, model, color and year of their car. Store the input data in a dictionary and a list. The dictionary has "make", "model", "color", and "year" as keys. The dictionary values are user inputted data. In addition, store the input data in a list also. Store the make, model, color and year of the car in a list. Display the dictionary and list. Here are sample program run. Your program output message should be similar to below. Make sure use other inputs to verify the correctness of the program. What is the make of your car? Ford What is the model of your car? Taurus What is color of your car? white What is the year of your car? 1997 Car info dictionary: {'make': 'Ford', 'model': 'Taurus', 'color': 'white', 'year': 1997} Car info list: ['Ford', 'Taurus', 'white', 1997] (I am getting syntax errors all over the place) I do have tutoring sessions but I'm in…
- 1) Define a global variable Emps that is an array of pointers to employee structs. 2) Change your createEmployee function to add the new employee to the Emps array. It should place it in the first slot that contains a NULL. 3) Write a listEmployees function that will call your display function on each employee in the array. 4) Change main to have a loop that looks for user commands. • If the user types HIRE, you should call createEmployee. If the user types LIST, you should call listEmployees. • If the user types QUIT, you should exit the loop, which will then cause the program to exit. 5) Write a findEmployee function that takes a string parameter and returns the employee pointer with that name or NULL if no such person exists. Change main to add a FIND name command that will find and display a single employee.In python: student_dict is a dictionary with students' name and pedometer reading pairs. A new student is read from input and added into student_dict. For each student in student_dict, output the student's name, followed by "'s pedometer reading: ", and the student's pedometer reading. Then, assign average_value with the average of all the pedometer readings in student_dict..JS Write a function named sum_between_indices whose parameter is a list/array of decimal numbers. Your function must return the sum of the entries at index 4 through index 15. Make certain to include the entries at index 4 and at index 15 in your sum. You SHOULD assume the parameter will have more than 15 entries.
- Please answer it in Python Write a function distribute_cartes that has two mandatory arguments card and players and an optional argument nb_card whose default value is 10. The pick argument corresponds to the complete list of cards in the game, already shuffled. The players list corresponds to the list of player names. This function allows the action of distributing nb_card cards from the pickaxe to each of the players. She builds a djeux dictionary whose keys are the names of the players and associating with each name the list of cards corresponding to her game. We will make sure to sort the game of each player in ascending order using the spell function. The distribute_card function returns the dictionary and modifies its pickaxe argument by edge effet (cards dealt to players must be removed from the pickaxe). It is assumed here that the pickaxe contains sufficiently cards for all players. For example card = [74, 72, 59, 82, 44, 77, 17, 11, 62, 97, 83, 69, 100, 22, 4, 51, 55, 50,…Define a function named find_num(). Use one number code in find_numb and if it exists in the dictionary then return a tuple with the number and name. If the number of the person does not exist then return none and another string containing error. numbs = {1000: 'Steve Smith', 1002: 'Jane Doe', 1004: 'John Doe',}Part 3: Time for a Financial Checkup Complete the function financial_checkup, which takes a dictionary representing your monthly budget for certain categories of expenditures (budget), and a dictionary that represents how much you actually spent in each category (outlays). The function then creates and returns a new dictionary of those categories in which you overspent and the excess amount. Specifically, the returned dictionary maps the category name to the amount of excess spending, given as a negative number. If a category appears in outlays, but not budget, we interpret this to mean that we budgeted $0 for that category, so the entire amount in outlays is considered to be excess spending. Example #1: budget: spent returned: {'food' -95, 'travel': -100} Example #2: budget: spent {'food': 125, 'gas': 75, 'travel': 400} {'food' 220, 'gas': 10, 'travel': 500} Example #3: {'food' 100, 'gas': 30} {'food' 220, 'gas': 10, 'travel': 500} returned: {'food": -120, 'travel': -500} {'drinks'…