The function below, get_value_if_key, takes two arguments: the dictionary data_dict and a key of any type my_key. Fix the code to return the value from data_dict for key my_key if that key exists. The function should not return anything otherwise (i.e. return None).
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- Write a function find_key(input_dict, target_value) that takes as parameters a dictionary and a target value and returns the key in the dictionary that maps to the target value or None if no such key exists. In other words, the function finds the key such that input_dict[key] == target_value. Notes: You may assume that the target_value only appears once in the dictionary and therefore there will be only one key that maps to the target. Hint: You need to iterate over all the keys, as this task is effectively using the dictionary backwards. For example: Test Result test_dictionary = {100:'a', 20:'b', 3:'c', 400:'d'} print(find_key(test_dictionary, 'b')) 20 test_dictionary = {100:'a', 20:'b', 3:'c', 400:'d'} print(find_key(test_dictionary, 'e')) NoneEstimated Completion Time: 2 minutes You are now working for Prof. Midas on a research project. You are given this piece of code to review which is intended to be a better and faster implementation of a function that checks whether a given key is in a dictionary (i.e., key lookup). You have to present your findings to Prof. Midas. Select all the findings which you will NOT present (i.e., select all answers which are FALSE). def key_in_dict(d, k): for item in d: if k == item: return True return False This code would always be slower than the builtin key lookup Python provides. O A key lookup in a dictionary in Python is generally faster than determining whether a value is in a list. O This code is way faster and will be included in the next version of Python (version 4.1). The code is incorrect from a functional perspective, the True and False should be switched. This code could be replaced with one line: return k in d O The code is correct and would always perform faster than the…Write a function named create_names_dictionary (initials_list, names_list) which takes a list of initials and a list of names as parameters. The function returns a dictionary by looping through each element in the first and the second list and creating a corresponding key:value item. The 'key' of each item in the dictionary is the initials of the first name and surname, and the 'value' is the name (e.g. key of 'AW", value of 'Alex Wong'). For example, the following code: names_list = ['Abby Anderson', 'Bella Campbell'] initials ['AA', 'BC'] my_dictionary = create_names_dictionary (initials, names_list) print(my_dictionary) produces {'AA': 'Abby Anderson', 'BC': 'Bella Campbell'} You can assume that both parameters are the same length and that the initials_list does not contain any duplicates. For example: Test Result names_list = ['Abby Anderson', 'Bella Campbell', 'Charlotte Donovan'] AA Abby Anderson initials = ['AA', 'BC', 'CD'] BC Bella Campbell my_dictionary =…
- Write the function called add_dictionaries(d1, d2) which takes as parameters two dictionaries whose values are numbers. The function should return a dictionary where the keys are those that occur in both dictionaries and the values are the sum of the values in the two dictionaries, but only if the key appears in both dictionaries. If a key does not occur in both dictionaries, then it should not be in the returned dictionary. Example: >>> d1 = {'ada': 5, 'banana': 1, 'car': 2} >>> d2 = {'car': 3, 'ada': 2, 'kiwi': 9} >>> add_dictionaries (dl, d2) {'ada': 7, 'car': 5)1. Write a Python function called add_daily_temp that is given a (possiblyempty) dictionary meant to hold the average daily temperature for each day ofthe week, a temperature value, and the day of the week for the recordedtemperature. The function should then add the temperature to the dictionaryonly if it does not already contain a temperature for that day. The functionshould return the resulting dictionary, whether it is updated or not.Focus on dictionary methods, use of functions, and good programming styleFor this assignment, you will create a glossary (dictionary) of technical terms and definitions. It will be set up as a Python dictionary structure. The file glossary_starter.py is a complete starter framework for the assignment. It includes some initial values for the dictionary. It is long because most of the code has already been written for you.Your task is to complete the five individual functions for adding and deleting terms, looking up terms, listing them, and printing out both the terms and definitions. These functions are all short, just a couple of lines, and use basic dictionary methods and techniques. Here is some sample output. Glossary system 1) Add a term 2) List terms 3) Get a definition 4) Delete a term 5) Print out dictionary 6) Quit Enter your choice: 2 argument dictionary hashmap list set 5 terms Glossary system 1) Add a term 2) List terms 3) Get a definition 4) Delete a term 5) Print…
- Focus on dictionary methods, use of functions, and good programming styleFor this assignment, you will create a glossary (dictionary) of technical terms and definitions. It will be set up as a Python dictionary structure. The file glossary_starter.py is a complete starter framework for the assignment. It includes some initial values for the dictionary. It is long because most of the code has already been written for you.Your task is to complete the five individual functions for adding and deleting terms, looking up terms, listing them, and printing out both the terms and definitions. These functions are all short, just a couple of lines, and use basic dictionary methods and techniques. Here is some sample output. Glossary system 1) Add a term 2) List terms 3) Get a definition 4) Delete a term 5) Print out disctionary 6) Quit Enter your choice: 2 argument distionary hashmap list set 5 termsFocus on dictionary methods, use of functions, and good programming styleFor this assignment, you will create a glossary (dictionary) of technical terms and definitions. It will be set up as a Python dictionary structure. The file glossary_starter.py is a complete starter framework for the assignment. It includes some initial values for the dictionary. It is long because most of the code has already been written for you.Your task is to complete the five individual functions for adding and deleting terms, looking up terms, listing them, and printing out both the terms and definitions. These functions are all short, just a couple of lines, and use basic dictionary methods and techniques.Focus on dictionary methods, use of functions, and good programming styleFor this assignment, you will create a glossary (dictionary) of technical terms and definitions. It will be set up as a Python dictionary structure. The file glossary_starter.py is a complete starter framework for the assignment. It includes some initial values for the dictionary. It is long because most of the code has already been written for you.Your task is to complete the five individual functions for adding and deleting terms, looking up terms, listing them, and printing out both the terms and definitions. These functions are all short, just a couple of lines, and use basic dictionary methods and techniques. Here is some sample output. Glossary system 1) Add a term 2) List terms 3) Get a definition 4) Delete a term 5) Print out dictionary 6) Quit Enter your choice: 2 argument dictionary hashmap list set 5 terms
- 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') []Focus on dictionary methods, use of functions, and good programming style For this assignment, you will create a glossary (dictionary) of technical terms and definitions. It will be set up as a Python dictionary structure. The file glossary_starter.py is a complete starter framework for the assignment. It includes some initial values for the dictionary. It is long because most of the code has already been written for you. Your task is to complete the five individual functions for adding and deleting terms, looking up terms, listing them, and printing out both the terms and definitions. These functions are all short, just a couple of lines, and use basic dictionary methods and techniques. Here is some sample output(Attached) And here is the glossary_starter.py: """ Program framework for module 9 graded program Creating a dictionary of technical terms and basic definitions key - the word to define value - the definition of the word Note: This isn't a usable…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…