
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
![3. Write python code to invert a dictionary. It should print a dictionary where the keys
are values from the input dictionary and the values are lists of keys from the input
dictionary having the same value. Make sure the program handles multiple same
values.
Sample Input
keyl : valuel, key2 : value2, key3 : valuel
Sample Output
{ "value1" : ["key1", "key3"], "value2" : ["key2"] }](https://content.bartleby.com/qna-images/question/a60e3ab0-5fdc-478f-ab53-8869ffea9c8f/1dd6525f-1890-4a69-a775-5be74d6934a0/k4tvyxk_thumbnail.png)
Transcribed Image Text:3. Write python code to invert a dictionary. It should print a dictionary where the keys
are values from the input dictionary and the values are lists of keys from the input
dictionary having the same value. Make sure the program handles multiple same
values.
Sample Input
keyl : valuel, key2 : value2, key3 : valuel
Sample Output
{ "value1" : ["key1", "key3"], "value2" : ["key2"] }
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- This section has been set as optional by your instructor. OBJECTIVE: Write a program in Python that prints the middle value of a dictionary's values, using test_dict from the test_data.py module. NOTE: test_dict is created & imported from the module test_data.py into main.py Example 1: test dict = {'a':1,'b':9,'c':2,'d':5} prints 5 Example 2: test_dict = {'b':9,'d':5} prints 5 Hint: You may(or may not) find the following function useful: list.sort() which sorts the elements in a list. Note: the result is automatically stored in the original list, and return value from the function is None Туре list = [1, 2,3,2,1] After calling: list = [1,1,2,2,3] list.sort(), 339336.2266020 x3zgy7 LAB 13.11.1: Middlest Value (Structured Types) АCTIVITY 0/11 File is marked as read only Current file: test_data.py 1 #This module creates the test_dict to be used in main.py 2 #Reads input values from the user & places them into test_dict 3 dict_size = int(input()) #Stores the desired size of test_dict. 4…arrow_forwardWrite a Python program that takes a dictionary as an input and then outputs the average of all the values in the dictionary. [You are not allowed to use len() and sum()] Hint: you can use dictionary functions to get all the values from it, run loop to calculate the sum and the total number of values in the dictionary in order to find out the average. def task8(dict_in): # YOUR CODE HERE return str_out could you please use dict_in and str_outarrow_forwardIn 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..arrow_forward
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