List pianists_list is read from input. Perform the following tasks: Assign backup_list with a copy of pianists_list using [:]. Assign selected_pianists with a slice of pianists_list that includes all the elements at the odd indices of pianists_list.

def upgrade_stations(threshold: int, num_bikes: int,                     stations: List["Station"]) -> int:    """Modify each station in stations that has a capacity that is less than    threshold by adding num_bikes to the capacity and bikes available counts.    Modify each station at most once.     Return the total number of bikes that were added to the bike share network.     Precondition: num_bikes >= 0     >>> handout_copy = [HANDOUT_STATIONS[0][:], HANDOUT_STATIONS[1][:]]    >>> upgrade_stations(25, 5, handout_copy)    5    >>> handout_copy[0] == HANDOUT_STATIONS[0]    True    >>> handout_copy[1] == [7001, 'Lower Jarvis St SMART / The Esplanade', \                            43.647992, -79.370907, 20, 10, 10]    True    """

def clean_span_data(raw_spans: str) -> List[float]:"""Return a list of span lengths from raw_spans, in the same order thatthey appear in raw_spans. Precondition:- raw_spans is in the appropriate format (see handout for details) >>> clean_span_data('Total=64 (1)=12;(2)=19;(3)=21;(4)=12;')[12.0, 19.0, 21.0, 12.0]"""

def is_valid_flight_sequence (iata_list: List[str], routes: RouteDict) -> bool: """Return whether there are flights from iata_list[i] to iata_list[i+1] for all valid values of i. IATA entries may not appear anywhere in routes. >>> is_valid_flight_sequence True >>> is_valid_flight_sequence False # Complete the function body (['AA3', 'AA1', 'AA2'], TEST_ROUTES DICT_FOUR_CITIES) (['AA3', 'AA1', 'AA2', 'AA1', 'AA2'], TEST_ROUTES_DICT_FOUR_CITIES)

def create_category(info):    li = info.split()    if len(li) == 2:        if is_numeric(li[1]) == True:            li[2] = float(l[2])        else:            return -1    else:        return -2            """    Given a string `info`, which is supposed to    contain the category name and its percentage,    return a two-element list, which contains this    information stored as a string and a float    respectively.     Calls is_numeric() to verify    that the percentage is a numeric value (int or float).    Stores the percentage as a float (not as a string).    E.g., if the input is "Quiz 25", the function    returns a list:    ["Quiz", 25.0]    If splitting the `info` string does not result    in a two-element list, then return -2.       If the last input value (the percentage) in `info`    is not numeric (int or float), does not update the    list and returns -1 instead.    """ debug

Write a prgram that creates a dictionary containing course numbers and room numbers of the room where the courses meet. The dictionary should have the following key value pairs: Course Number Room Number CS101         3004 CS102         4501 CS103          6755 NT110          1244 CM241          1411   This program should also create a dictionary containing course numbers and the names of the instructors that teach each course. The dictionary should have the following key-value pairs:   Course Number Instructor CS101               Haynes CS102               Alvarado CS103               Rich NT110                 Burke CM241                Lee   This program should also create a dictionary containing the course numbers and the meeting times of each course. The dictionary should have the following key values   Course number Meeting Time CS101             8:00 a.m. CS102              9:00 a.m. CS103              10:00 a.m. NT110              11:00 a.m. CM241               1:00 p.m.   If…

Python question, need some help

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 in the dates in events, and the values are the date-to-event dictionaries for 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']} } || || ||

Create a static dictionary with a number of users and with the following values:  First name Last name Email address Password Ask the user for:          5. Email address        6. Password Loop (for()) through the dictionary and if (if()) the user is found print the following:          7. Hello, first name last name you have successfully logged in        8. Notify the user if the password and email address are wrong        9. Additional challenge: if you want the program to keep asking for a username and password when the combination is wrong, you will need a while() loop.      10. Save the file as assignment03yourlastname.py

2. Each student at Middlesex County College takes a different number of courses, so the registrar has decided to use linear linked lists to store each student's class schedule and an array to represent the entire student body. A portion of this data structure is shown below: link Sec cr CSC16213 →HISHO 24 $||1|| 1/1234 2/2 357 CSC236/4 37 These data show that the first student (ID: 1111) is taking section 1 of CSC162 for 3 credits and section 2 of HIS101 for 4 credits; the second student is not enrolled; the third student is enrolled in CSC236 section 4 for 3 credits. s Write a class for this data structure. Provide methods for creating the original array, inserting a student's initial class schedule, adding a course, and dropping a course. Include a menu-driven program that uses the class.