Write a function named count_letters that takes as a parameter a string and returns a dictionary that tabulates how many of each letter is in that string. The string can contain characters other than letters, but only the letters should be counted. The string could even be the empty string (just ""). Lower-case and upper-case versions of a letter should be part of the same count. The keys of the dictionary should be upper-case letters. If a letter does not appear in the string, then it would not get added to the dictionary. For example, if the string is "AaBb" then the dictionary that is returned should contain these key-value pairs: {'A': 2, 'B': 2} And no, we haven't covered the isalpha() funciton or the .get function, so don't use it.

This is question 5 on the same chapter 9

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']} } || || ||

Python code please help, indentation would be greatly appreciated

q2

Write a function called count_duplicates that takes a dictionary as an argument and returns the number of values that appear two or more times.

Write a function named count_vowels that accepts a string as an argument. The function should count the number of times each vowel (the letters a, e, i, o, and u) appears in the string, and store those counts in a dictionary. When the function ends, the dictionary should have exactly 5 elements. In each element, the key will be a vowel (lowercase) and the value will be the number of times the vowel appears in the string.

This code is a part of a C dictionary. Please write the code for the below requirements. dict_get Next, you will implement: char* dict_get (const dict_t* dict, const char* key); This function goes through the list given by dict. If you use the above structure, this means starting at el = dict->head and checking each time whether the key at el is key; if it is not, we set el = el->next, until either key is found, or we reach el == NULL. To compare key with el->key, we need to compare one by one each character in key with those in el->key. Remember that strings in C are just pointers (memory addresses) to the first character in the string, so comparing el->key == key will not do what you want. So how do you even get the length of a string s? You would start at memory location s and advance as long as the byte at s (i.e. *s) is not the end-of-string marker (0,円 the NULL character). This can get a bit messy, so luckily, you are allowed to use the string comparison...

Write a program that creates a dictionary containing Canadian provinces' abbreviations as the keys (e.g., 'on') and their long format as the values (e.g., 'Ontario'). Use the internet to get a list of provinces and their abbreviations. The program should then randomly quiz the user by displaying the abbreviation of the province and asking the user to enter the extended format for the abbreviation. The program should keep count of the number of correct and incorrect responses.

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...

As part of this assignment, the program that you will be writing will store current grades in a dictionary using course codes as keys and with values consisting of percent grades in lists. The main functions of this program are to print a student's gradebook, to drop the lowest grade in each course, print the student's gradebook again, drop the course with lowest average, and finally printing the student's gradebook again. This program requires a main function and a custom value-returning function. In the main function, code these basic steps in this sequence (intermediate steps may be missing): start with an empty dictionary that represents a gradebook and then use a while loop to allow the input of course codes from the keyboard. End the while loop when the user presses enter without entering data.within the while loop:for each course entered, use a list comprehension to generate five random integers in the range of 70 through 100. These random integers in a list represent the...

JS Write a function named sum_between_indices whose parameter is a list/array of decimal numbers. Your function must return the sum of the entries at index 4 through index 15. Make certain to include the entries at index 4 and at index 15 in your sum. You SHOULD assume the parameter will have more than 15 entries.

Python question please include all steps and screenshot of code. Also please provide a docstring, and comments throughout the code, and test the given examples below. Thanks. Write function week() that takes no arguments. It will repeatedly ask the user to enter anabbreviation for a day of the week (Mo, Tu, We, Th, Fr, Sa, or Su) and then print thecorresponding day. Use a dictionary to implement this result.>>> week() Enter day abbreviation: TuTuesdayEnter day abbreviation: SuSundayEnter day abbreviation: SaSaturdayEnter day abbreviation