crate a dictionary and function to add new data Data store: This line creates an empty dictionary named data_store. A dictionary stores data in key-value pairs. def add_data() This line defines a function named add_data This function can be called later to perform a task in this case, to add a name and mobile number to the dictionary. data_store[key] = value: This line adds the new name and mobile number to the dictionary. save_data() This calls the save_data() function not shown in your code here but assumed to be defined else where. def search_data(): This defines a function called search_data. This function can be called later in the program when you want to look up information by keyword. if query in data_store: This checks if the entered keyword (query) exists in the dictionary data store. If it does exist, the program will continue to the next line inside the if block. If not, it will skip to the else part. def save_data(): This defines a function named save_dat...
Code.... Building a Student Ranking System in Python.. Have you ever wondered how teachers can quickly arrange students’ marks into a ranking list ? Instead of doing it manually, we can use Python programming to make this task super easy. Take student names and marks as input. Sort students in descending order (highest marks first). Display the rankings.` Save the results into a text file. Step 1: Collect Student Data.. We start by asking the user how many students are in the class. Then, we take the name and marks of each student. Here, we store each student’s name and marks as a tuple inside a list. Example: [("Alice", 90), ("Bob", 85)] . Step 2: Sort Students by Marks Now that we have the data, we need to sort it based on marks in descending order (highest to lowest). * Lambda x: x[1] means we are sorting by the second element in the tuple (the marks). * R everse=True en...