write codes in python List Filter FunAssume you have a non-empty list containing words. The existing list is named words_list. Write a list comprehension that builds a new list (name the new listfiltered_words) from the words_list, but only adds words that are 5 characters or less in length. If any word is 5 characters or less, and it starts with an "f", uppercase theword and add it to the filtered_words.1 words_list=(''D23 filtered_words=[word.upper() if word. Lower().startswith('f') else word for word in words_list if len(word) <= 5]Check My SolutionTest Results:✓You are using a variable named filtered_words.You are using a list comprehension to create the list.Your list comprehension does not build the correct list.Your list comprehension does not build the correct list.Your list comprehension correctly builds the list []60% of tests passed.Load My Latest Solution Reset

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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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Ocaml Map functions left Writeafunctionmap_fun_left : (’a -> ’a) list -> ’a list -> ’a list = that is given a list of functions and a list of elements. For each element apply all functions from left to it and keep the result. Return the results as a list. examples map_fun_left [((+)1);( * )2;fun x->x-10] [1;2;3;4];; - : int list = [-6; -4; -2; 0] map_fun_left [(fun x->int_of_char x|> (+) 32 |> char_of_int);(fun x->char_of_int ((int_of_char x) +1))] [’A’;’B’;’C’;’D’];; - : char list = [’b’; ’c’; ’d’; ’e’]
def grade_manipulation(grade_list): ''' Question You are working as a TA and the professor asks you to handle the uncleaned student grades. - First, substitute all grades that are None with a 0 - Second, reverse the order of the student grades - Third, change the type of the list to a tuple Args: grade_list (list) Returns: tuple >>> grade_manipulation([67, 95, 60, None, 100]) (100, 0, 60, 95, 67) ''" # print(grade_manipulation([67, 95, 60, None, 100])) # print('---')
linked_list_stack_shopping_list_manager.py This is a file that includes the class of linked list based shopping list manager. This class contains such methods as init, insert_item, is_list_empty, print_item_recursive_from_top, print_items_from_top, print_item_recursive_from_bottom, print_items_from_bottom, getLastItem, removeLastItem. In addition, this class requires the inner class to hold onto data as a linked list based on Stack. DO NOT use standard python library, such as deque from the collections module. Please keep in mind the following notes for each method during implementation: Init(): initializes linked list based on Stack object to be used throughout object life. insert_item(item): inserts item at the front of the linked list based on Stack. Parameters: item name. is_list_empty (): checks if the current Stack object is empty (ex. check if head is None). print_item_recursive_from_top(currentNode): a helper method to print linked list based on Stack item recursively. Note:…
Make List Items Uppercase 2 in python Define the function make_uppercase(mylist), which takes a list parameter mylist (a list of strings), mutates the list by uppercasing each string in mylist. The function returns None. For example, if mylist is ['cat', 'Dog', 'frOG'], then the mutated list should be ['CAT', 'DOG', 'FROG']. For example: Test Result mylist = ['cat', 'Dog', 'frOG'] result = make_uppercase(mylist) print(mylist) if result != None: print("Error, return value should be None") ['CAT', 'DOG', 'FROG'] mylist = ['baNanas', 'appLes', 'pEAches', 'PEArs'] result = make_uppercase(mylist) print(mylist) if result != None: print("Error, return value should be None") ['BANANAS', 'APPLES', 'PEACHES', 'PEARS']
Create two linked lists and then make a concatList(NODE **list1, NODE **list2) function that concatenates the two lists. The concatenated list must be a linked list. Fill in the "Write code here" sections appropriately.
statistics.py: Write a program that reads a list of integers from the user, until they enter -12345 (the -12345 should not be considered part of the list). Then print the mean, median, and standard deviation of the list. The mean is the average of the numbers. The median is the “middle” value if n is odd, or the average of the two “middle” values if n is even. The standard deviation is the average amount of variability For example: $ python3 statistics.py154102-12345mean: 7.75median: 7standard deviation: 5.909032633745278
detemine if the following statement are true or false The iterator operation is required by the Iterable interface. A list allows retrieval of information based on the contents of the information.
class Node: def __init__(self, e, n): self.element = e self.next = n class LinkedList: def __init__(self, a): # Design the constructor based on data type of a. If 'a' is built in python list then # Creates a linked list using the values from the given array. head will refer # to the Node that contains the element from a[0] # Else Sets the value of head. head will refer # to the given LinkedList # Hint: Use the type() function to determine the data type of a self.head = None # To Do # Count the number of nodes in the list def countNode(self): # To Do # Print elements in the list def printList(self): # To Do # returns the reference of the Node at the given index. For invalid index return None. def nodeAt(self, idx): # To Do
Max Absolute In List Function Lab Description Implement function max_abs_val(lst), which returns the maximum absolutevalue of the elements in list.For example, given a list lst: [-19, -3, 20, -1, 0, -25], the functionshould return 25. The name of the method should be max_abs_val and the method should take one parameter which is the list of values to test. Here is an example call to the function print(max_abs_val([-19, -3, 20, -1, 0, -25])) File Name maxabsinlst.py Score There are three tests each worth 2 points Note: You do not need any other code including the main method or any print statements. ONLY the max_abs_val method is required. Otherwise, the autograder will fail and be unable to grade your code. (I.e., do not include the above example in your code.) The above example should be used be test your code but deleted or comment out upon submission. PYTHON LAB
List comprehension. Write a Python program called list_comprehension.py that contains remove_list = [1,5,7, 9]. Create a list that is initialized by a list comprehension that contains all numbers from 0-10, but none of the numbers on the remove_list. Do not use for loop. Print the contents of the list.
Python Programming: 2-Dimensional list The Lo Shu Magic Square is a grid with 3 rows and 3 columns that contains the numbers 1 through 9 exactly. The sum of each row, each column, and each diagonal all add up to the same number. Write the program in Python that reads a 2-dimensional list from .txt files and returns if it is a Lo Shu Square or not. (Use 2 .txt files, one is a Lo Shu Square and the other is not) Write a function that accepts a two-dimensional list as an argument and determines whether the list is a Lo Shu Magic Square. Remember to check the sum of the rows, columns, and diagonals. Use only local variables across all your functions. Test the function in the program by sending in the 2 .txt files described above. 4 9 2 3 5 7 8 1 6
zeroTriples.py: Write a program that reads a list of integers from the user, until they enter -12345 (the -12345 should not be considered part of the list). Then find all triples in the list that sum to zero. You can assume the list won’t contain any duplicates, and a triple should not use the same number more than once. For example:$ python3 zeroTriples.py124-123450 triples found $ python3 zeroTriples.py-3142-123451 triple found:1, 2, -3 $ python zeroTriples.py-91-3245-4-1-123454 triples found:-9, 4, 51, -3, 2-3, 4, -15, -4, -1

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