A date-to-event dictionary is a dictionary in which the keys are dates (as strings in the format 'YYYY-MM-DD'),and the values are lists of events that take place on that day.Complete the following function according to its docstring. Your code must not mutate the parameter!def group_by_year (events: Dict[str, List[str]]) -> Dict [str, Dict [str, List[str]]]:"""Return a dictionary in which in the keys are the years that appear inthe dates in events, and the values are the date-to-event dictionariesfor all dates in that year.>>> date_to_event = {'2018-01-17': ['meeting', 'lunch'],'2018-03-15': ['lecture'],'2017-05-04': ['gym', 'dinner']}>>> group_by_year (date_to_event){'2018': {'2018-01-17': ['meeting', 'lunch'],'2018-03-15': ['lecture']},'2017': {'2017-05-04': ['gym', 'dinner']}}|| || ||

A date-to-event dictionary is a dictionary in which the keys are dates (as strings in the format 'YYYY-MM-DD'), and the values are lists of events that take place on that day. Complete the following function according to its docstring. Your code must not mutate the parameter!

A date-to-event dictionary is a dictionary in which the keys are dates (as strings in the format 'YYYY-MM-DD'), and the values are lists of events that take place on that day. Complete the following function according to its docstring. Your code must not mutate the parameter!

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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You are given a list of courses that are currently available in BRACU that looks like the following: courses = ['CSE110','CSE111','MAT620','CS520','EEE361','CSE650','MAT5100','CSEE21','MAT3210']. All course code will have 3 digits with the department name of 3 letters. Any course code not following this rule is Invalid. 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) or Invalid. Departments will contain a list of valid courses for that department. Sample Input - No need to take input ['CSE110','CSE111','MAT620','CS520','EEE361','CSE650','MAT5100','CSEE21','MAT3210'] Sample Output : (You just need to print the resultatnt dictionary. No need to follow the format.) { 'CSE': ['CSE110','CSE111','CSE650'], 'EEE': ['EEE361'], 'MAT': ['MAT620'], 'Invalid': ['CS520','CSEE21','MAT5100','MAT3210'] }
get_movie_dict() takes a 2-D list similar to movie_db and a dictionary similar to ratings as the parameters and returns a dictionary, where each {key: value} of this dictionary is {a valid movie id: a list containing the name of the movie, the year it got released, and the average rating of this movie}. I will refer to this dictionary as movies.>>> movies = get_movie_dict(movies_db, ratings)>>> display_dict(movies)1: ['Toy Story', 1995, 3.92]2: ['Jumanji', 1995, 3.43]3: ['Grumpier Old Men', 1995, 3.26]4: ['Waiting to Exhale', 1995, 2.36]5: ['Father of the Bride Part II', 1995, 3.07]6: ['Heat', 1995, 3.95]7: ['Sabrina', 1995, 3.19]8: ['Tom and Huck', 1995, 2.88]9: ['Sudden Death', 1995, 3.12]10: ['GoldenEye', 1995, 3.5]11: ['American President The', 1995, 3.67]12: ['Dracula: Dead and Loving It', 1995, 2.42]13: ['Balto', 1995, 3.12]14: ['Nixon', 1995, 3.83]15: ['Cutthroat Island', 1995, 3.0]16: ['Casino', 1995, 3.93]17: ['Sense and Sensibility', 1995, 3.78]18: ['Four…
Implement the following: Given: courses = ['tech-100', 'mt-900', 'ee-101', 'arch-111'] avgs = [86.75, 73.64, 96.87, 85.21] 1) Create a dictionary, courseAvgs by using the two given lists above. 2) Use a loop to print all keys and values in the dictionary courseAvgs. 3) Print the dictionary courseAvgs. Make sure to precisely match the output format below. Write your code in the ANSWER area provided below (must include comments if using code is not covered in the course). Example Output TECH-100: 86.75 | MT-900: 73.64 | EE-101: 96.87 | ARCH-111: 85.21 | {'tech-100': 86.75, 'mt-900': 73.64, 'ee-101': 96.87, 'arch-111': 85.21}
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:Three
Create a program that asks the user to enter a series of city names and populations. Each name and population should be added to a dictionary as a key/value pair. Once they are finished entering these values, use a dictionary comprehension to create a new dictionary featuring only the cities whose populations are over 2 million. Print the key/value pairs in the resulting dictionary out.
Creates and returns a mutable dictionary, initially giving it enough allocated memory to hold a given number ofentries.
Write a program that creates a Dictionary containing the U.S. states as keys and their capitals as values. (Use the internet to get a list of the states and their capitals.) The program should then random quiz the user by displaying the name of a state and asking the user to enter that state’s capital. The program should keep a count of the number of correct and incorrect responses. (As an alternative to the U.S. states, the program can use the names of countries and their capitals.) for C programming
This assignment requires you to create a dictionary by reading the text file. Text file name: LightningP Text file contents: Stamkos3538Maroon2933Point5055Kucherov5565Killorn3340 The dictionary should have player names for the keys. The value for each key must be a two-element list holding the player's goals and assists, respectively. Start with an empty dictionary. Then, use a loop to cycle through the text file and add key-value pairs to the dictionary. Close the text file and process the dictionary to print the stats and determine the top scorer as before. Printing the stats for each player is the most challenging part of this program. The required output should be the same well-formatted table as below: PLAYER COLUMN: 10 characters wide and left-aligned. GOALS COLUMN: 6 characters wide and centered. ASSISTS COLUMN: 8 characters wide and centered. TOTAL COLUMN: 6 characters wide and centered. Example output:
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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
Write a function named build_dict() that will take a string and an index as parameters. The function will remove all the characters of the positions which are multiples of the given index (Except the index itself) and print those removed characters inside the function as a STRING.Lastly, the function will RETURN a dictionary that will have the removed characters as keys and their ASCII values as values.Sample Input 1:Bangladesh3Function call 1:build_dict("Bangladesh", 3)Sample Output 1:Removed: dh{'d': 100, 'h': 104}Explanation 1:Here, the multiples of 3 are 6 and 9 (excluding 3 itself); so the function will remove ‘d’, ‘h’, print those removed characters INSIDE the function.Then the function returns the dictionary that has ‘d’, ‘h’ as keys and their ASCII values(100,104) as values.Sample Input 2:Programming2Function call 2:build_dict("Programming", 2)Sample Output 2:Removed: rmig{'r': 114, 'm': 109, 'i': 105, 'g': 103}
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