answer the following questions: 1: A dictionary is an unordered collection of key-value pairs. True or False 2: What is printed by the following statements? ydict = {"cat":12, "dog":6, "elephant":23} print(mydict.["dog"]) 3: What is printed by the following statements? ydict = {"cat":12, "dog":6, "elephant":23} ydict ["mouse"] = mydict["cat"] + mydict["dog"] rint(mydict ["mouse"]) 1: What is printed by the following statements? inventory = {'apples': 430, 'bananas': 312, 'oranges': 525, 'pears': 217} print (inventory.get("apples")) print (inventory.get("cherries")) inventory.get("cherries", 0)) 5: What is printed by the following statements? Inventory {'apples': 430, 'bananas': 312, 'oranges': 525, 'pears': 217} for akey in inventory.keys (): print("Got key", akey, "which maps to value", inventory [akey]) s = list(inventory.keys()) print (ks.) # the order in which we get the keys is not define

answer the following questions: 1: A dictionary is an unordered collection of key-value pairs. True or False 2: What is printed by the following statements? ydict = {"cat":12, "dog":6, "elephant":23} print(mydict.["dog"]) 3: What is printed by the following statements? ydict = {"cat":12, "dog":6, "elephant":23} ydict ["mouse"] = mydict["cat"] + mydict["dog"] rint(mydict ["mouse"]) 1: What is printed by the following statements? inventory = {'apples': 430, 'bananas': 312, 'oranges': 525, 'pears': 217} print (inventory.get("apples")) print (inventory.get("cherries")) inventory.get("cherries", 0)) 5: What is printed by the following statements? Inventory {'apples': 430, 'bananas': 312, 'oranges': 525, 'pears': 217} for akey in inventory.keys (): print("Got key", akey, "which maps to value", inventory [akey]) s = list(inventory.keys()) print (ks.) # the order in which we get the keys is not define

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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2- Consider the following Python dictionary: {'Wednesday': 'Wednesday', 'Thursday': 'chilly'} Using the in keyword, would 'Wednesday' be considered a member of this dictionary? Ensure that you select the answer which also includes a correct explanation. a. No, because it is not a value in the dictionary. b. Yes, because it is a value in the dictionary. c. No, because it is not a key in the dictionary. d. No, because it is not both a key and a value in the dictionary (not just one or the other). e. Yes, because it is a key in the dictionary. f. Yes, because it is both a key and a value in the dictionary (not just one or the other).
1) Which method in the interface for a dictionary collection returns an iterator on the keys in the dictionary? a. values() b. pairs() c. keys() d. entries() 2) Which method in the interface for a dictionary collection returns an iterator on the values in the dictionary? a. entries() b. values() c. keys() d. pairs()
given dictionaries, d1 and d2, create a new dictionary with the following property. For each entry(a,b) in d1, if a is not a key of d2 then add (a,b) to the new dictionary. For each entry (a,b) in d2, if a is not a key of d1 then add (a,b) to the new dictionary. For example, if d1 is {2:3, 8:19, 6:4, 5:12} and d2 is {2:5, 4:3, 3:9}, then the new dictionary should be {8:19, 6,4, 5:12, 4:3, 3:9}. using puthon
# viewGame(G, i) takes a game description G (a dictionary of the type# produced by newGame()) and an integer player index i and returns a# string that, when printed, describes the state of the game from# player i's perspective.## Example:# >>> viewGame(G, 1)# '\nPlayer2 to play (score=0):\n 1[ ] 2[ ] 3[ ]'## Note the spacing and explicit newlines, and the fact that the player# numbers use 1-based indexing even though internally the game data# structures use Pythonic 0-based indexing.
Python 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:Three
Please answer the ques in python with showing the answers. Q: A car dictionary: a) Implement a dictionary car with the keys brand, model, and color. Give appropriate values for each key (you choose). b) Print each item in the dictionary (see example output) c) Add a key transmission to the dictionary with the value ‘automatic’. d) Print the value for the key transmission (use the get method). Output Example: subaru crosstrek sapphire blue automatic
Please answer it in Python In order not to forget to wish the birthday of his loved ones, Alzheimer wants to memorize and manage their dates of birth via a computer program in Python. At first, it is assumed that Al has already computerized the birthday dates of his relatives in a dictionary. The keys in this dictionary are the first names of his relatives (it is assumed that no two people with the same first name). The value associated with each key corresponds to the birthday of the corresponding person, in the form of a 3-item list, containing in the order the day, month and year of birth. The day is considered to be an integer between 1 and 31, the month an integer between 1 and 12 and the year of birth an integer between 1900 and 2021. Thus the list [17, 5, 2021] corresponds to the date of May 17, 2021. This may lead to writing dates that do not exist (e.g. [31, 4, 2003]) but this is not addressed in the exercise. Here is an example of a dictionary containing the dates of birth of…
Please answer it in Python In order not to forget to wish the birthday of his loved ones, Alzheimer wants to memorize and manage their dates of birth via a computer program in Python. At first, it is assumed that Al has already computerized the birthday dates of his relatives in a dictionary. The keys in this dictionary are the first names of his relatives (it is assumed that no two people with the same first name). The value associated with each key corresponds to the birthday of the corresponding person, in the form of a 3-item list, containing in the order the day, month and year of birth. The day is considered to be an integer between 1 and 31, the month an integer between 1 and 12 and the year of birth an integer between 1900 and 2021. Thus the list [17, 5, 2021] corresponds to the date of May 17, 2021. This may lead to writing dates that do not exist (e.g. [31, 4, 2003]) but this is not addressed in the exercise. Here is an example of a dictionary containing the dates of birth of…
Please answer it in Python In order not to forget to wish the birthday of his loved ones, Alzheimer wants to memorize and manage their dates of birth via a computer program in Python. At first, it is assumed that Al has already computerized the birthday dates of his relatives in a dictionary. The keys in this dictionary are the first names of his relatives (it is assumed that no two people with the same first name). The value associated with each key corresponds to the birthday of the corresponding person, in the form of a 3-item list, containing in the order the day, month and year of birth. The day is considered to be an integer between 1 and 31, the month an integer between 1 and 12 and the year of birth an integer between 1900 and 2021. Thus the list [17, 5, 2021] corresponds to the date of May 17, 2021. This may lead to writing dates that do not exist (e.g. [31, 4, 2003]) but this is not addressed in the exercise. Here is an example of a dictionary containing the dates of birth of…
Use z as the input into a dictionary comprehension statement that creates a new dictionary, z_even_key, which contains the key-value pairs from z if the key of that pair is an even integer. Code to be done in python z = {9:'performing ', 16:'you', 17:'before ', 11:'multiple ', 34:'did', 29:'pink', 24:'this', 27:'solid', 37:'food', 34:'sloth', 47:'freeze', 44:'wrong'} For some reason when I do this it keeps giving me the output {}, so I need to see it done correctly to figure out where I am messing up. Thank you.
Write a python program for this question: You are given a list of courses that are currently available in BRACU that looks like the following:courses = ['CSE110','CSE111','MAT620','CSE520','EEE361','CSE650','MAT510'].All courses till 400 level (499) are for the undergraduate students whereas any courses above 500 are for the graduate or masters students.Write a python program that creates a dictionary from the above list where the keys will be each department name (CSE,EEE,MAT for the above example) and their values will be a dictionary of two keys -Undergraduate Courses and Graduate Courses.Each key will have courses that fall in Undergraduate and Graduate level respectively.Sample Input - No need to take input['CSE110','CSE111','MAT620','CSE520','EEE361','CSE650','MAT510']Sample Output: (You just have to print the resultant dictionary. No need to follow the pattern below){ 'CSE':{ 'Undergraduate':['CSE110','CSE111'], 'Graduate':['CSE520','CSE650'] },…
Assume, you have been given a dictionary where the keys present the name of the father and the value is a list of names of the sons of that person. For example A has 3 sons namely X, Y, and Z. Again X has three sons namely E, F, and G. So, A is the grandfather of E, F, and G. family = {"A" : ["X", "Y", "Z"], "B": ["M", "N"], "W" : ["A", "B"], "X" : ["E", "F", "G"]} You need to write a code which takes an input and prints the names of all his grandsons in the format shown in output samples. If he does not have any grandchildren just print “Get your sons married first! Wanna_be_grandpa!!” You can assume the input will always be a key from the dictionary. But we will check your code with a different dictionary. So do not write a code for this particular dictionary only. Enter Assume, you have been given a dictionary where the keys present the name of the father and…