# Create a homogeneous int tuple T_int = (10, -4, 59, 58, 23, 50) # stores in tuple type(T_int) # type

# Create a homogeneous string tuple T_string = ("word", "letter", "vowel", "spell", "book", "write", "read") # stores in tuple type(T_string) # type

# Create heterogeneous tuples T = ("Tobias", 23, 25.3, []) # stores in tuple type(T) # type

# Create heterogeneous tuples # A datetime object can be a tuple element from datetime import datetime # from datetime, import datetime now = datetime.today() # stores today's date T = ((1.5,2.6), "home", now) # stores in tuple type(T) # type

T = ("switch") # This is not a tuple # stores type(T) # str

T = ("switch",) # Note the comma after the string makes T a tuple # stores in tuple type(T) # type

# List of employee names names_list = ["Suresh", "Colette", "Skye", "Hiroto", "Tobias", "Tamara", "Jin", "Joana", "Alton"] # stores in list # Sort the names alphabetically sorted_list = sorted(names_list) # sorts and stores # Convert list into tuple names_tuple = tuple(sorted_list) # stores type # List converted into a tuple print(type(names_tuple)) # prints type # Print the first and last name in the tuple print("First name is: {:s}".format(names_tuple[0])) # prints, formats print("Last name is: {:s}".format(names_tuple[-1])) # prints, formats

# Collect 3 int numbers from a user L = [] # empty list for i in range(3): # for i range of 0-3 tmp = int(input("Enter an int {:d}/3: ".format(i))) # stores user input, formatted, and converted to int form L.append(tmp ** 2) # tmp to the power of 2, appends # Convert the list into a tuple T = tuple(L) # converts L to tuple list and stores # Print the content of the tuple print("Tuple of squares is:", T) # prints # Print each of the tuple elements on a new line for i in range(3): # for i in range of 0-3 print("T[{0:d}] = {1:d}".format(i, T[i])) # prints, formats

T = ("Tobias", 23, 25.3, []) # stores in tuple # Tuples are immutable and cannot be changed T[0] = "hello" # replaces index 0 with "hello" - error

T = ("Tobias", 23, 25.3, []) # stores in tuple # A list inside a tuple can change T[-1].append(44) # appends 44 at the last item # The tuple did NOT change, it still refers to the same list; only the list was changed print(T) # prints

# [ ] Create a tuple that consists of the following variables x = 5 # stores l = [4.4, 5.3] # stores in list s = "something" # stores t = (9, 0) # stores in tuple tuple_var = (x, l, s, t) # places all the variables in tuple print(tuple_var) # prints

# [ ] Change the third element of T to [59, 20.4] T = ([43.6, 34], [49, 59], [50, 34.6], [39, 49]) # TODO: your code here T[2][0] = 59 # in index 2 of T, replace index 0 with 59 T[2][1] = 20.4 # in index 2 of T, replace index 1 with 20.4 print(T) # print

# [ ] Write a program to merge the content of T1 and T2 into one tuple T # Correct output should be T = (5, 4, 3, 9, 2, 12) # T = ((5, 4, 3), (9, 2, 12)) is an incorrect output # Hint: Use list to/from tuple conversion T1 = (5, 4, 3) # stores in tuple T2 = (9, 2, 12) # stores in tuple T = T1 + T2 # adds, stores print("T =", T) # prints

T = (12, 24, 'name', 'city') # stores in tuple # Slice the tuple into numerical and textual tuples numerical_tuple = T[0:2] # stores index 0-1 of tuple print(numerical_tuple) # prints textual_tuple = T[-2:] # stores index -2 to end of tuple print(textual_tuple) # prints

# Swap variables using tuple unpacking e1 = 5 # stores e2 = 109 # stores print("\nBefore swapping:") # prints print("e1 = {:3d}\t e2 = {:3d}".format(e1, e2)) # prints, formats e1, e2 = e2, e1 # e1 is e2, e2 is e1 print("\nAfter swapping:") # prints print("e1 = {:3d}\t e2 = {:3d}".format(e1, e2)) # prints, formats

# Split a full name into the first and last names def split_name(name): # creates new function with parameter names = name.split(" ") # splits wherever there is " " - a gap first_name = names[0] # the first index will the stored last_name = names[-1] # the last index will be stored # pack the variables into a tuple, then return the tuple return (first_name, last_name) # returns # Ask user for input name = input("Enter your full name: ") # asks user # Unpack the returned tuples into first, last variables # looks like the function returns 2 variables first, last = split_name(name) # calls function, stores # Unpacked variables can be used separately print("First name: {:s}".format(first)) # prints, formats print("Last name: {:s}".format(last)) # prints, formats

# [ ] Write a program to split the content of T into T1 and T2 # T1 = (5, 4, 3) # T2 = (9, 2, 12) T = (5, 4, 3, 9, 2, 12) # stores in tuple T1 = T[:3] # stores T2 = T[3:] print("T1 =", T1) # prints print("T2 =", T2) # prints

# [ ] Write an expression to unpack `T` into: # 1) x = 5 # 2) l = [3, 5.3] # 3) s = 'something # 4) t = (9, 0) T = (5, [3, 5.3], 'something', (9, 0)) # stores in tuple #TODO: Your code goes here x = T[0] # stores index 0 l = T[1] # stores index 1 s = T[2] # stores index 2 t = T[3] # stores index 3 print("After unpacking the tuple:", T) # prints print("x =", x) # prints print("l =", l) # prints print("s =", s) # prints print("t =", t) # prints

# [ ] Complete the function `current_date` to return today's month, day, and year # Hint: Use an appropriate function from the datetime module from datetime import date def current_date(): current = date.today() year = current.timetuple()[0] month = current.timetuple()[1] day = current.timetuple()[2] return month, day, year #TODO return month, day, year m, d, y = current_date() print("Today's date is: {:2d}/{:2d}/{:4d}".format(m, d, y))

T = (4, [5, 6], 'name', 3.5, True) # stores in tuple print("4 contained in T?", 4 in T) # prints True print("5 not contained in T?", 5 not in T ) # prints True print("False contained in T?", False in T) # prints False

# Equivalent tuples, not identical T1 = (10, [2, 4], 59) # stores in tuple T2 = (10, [2, 4], 59) # stores in tuple if (T1 == T2): # if T1 equals T2 print("Equal tuples") # print this else: # else print("Not equal tuples") # print this if (T1 is T2): # if T1 is T2 print("Identical tuples") # print this else: # else print("Not identical tuples") # print this

# Identical tuples (also equivalent) T1 = (10, [2, 4], 59) # stores in tuple T2 = T1 # T2 is T1 if (T1 == T2): # if T1 equals to T2 print("Equal tuples") # print this else: # else print("Not equal tuples") # print this if (T1 is T2): # if T1 is T2 print("Identical tuples") # print this else: # else print("Not identical tuples") # print this

# Changing one of 2 identical tuples T1 = (10, [2, 4], 59) # stores in tuple T2 = T1 # T2 is T1 # A change in T1 is a change in T2 T1[1][0] = 20 # in index 1 of T1, replace index 0 of index 1 with 20 print("T1 = ", T1) # prints print("T2 = ", T2) # prints

T1 = ("First", "Last") # stores in tuple T2 = ("Middle",) # single element tuple # stores in tuple # Concatenate two tuples T = T1 + T2 # adds print(T) # prints

T1 = (10, [2, 4], 59) # stores in tuple T2 = (59, [2, 4], 'name', 3.5, True) # stores in tuple # Concatenate sliced tuples T = T1[1:] + T2[0:2] # adds index 1-End of T1 and 0-1 of T2 print(T) # prints

# length of tuple T1 = (10, [2, 4], 59) # stores in tuple print(len(T1)) # prints length

# Iterate over elements of a tuple T1 = (10, [2,4], 59) # stores in tuple for i in range(len(T1)): # for i in range of the length of T1 print("T1[{:d}] = {}".format(i, T1[i])) # prints, formats

# [ ] Write a program to merge the content of T1 and T2 into one tuple T # Correct output should be T = (5, 4, 3, 9, 2, 12), # T = ((5, 4, 3), (9, 2, 12)) is an incorrect output # You should NOT use lists in your solution but concatenation T1 = (5, 4, 3) # stores in tuple T2 = (9, 2, 12) # stores in tuple T = T1 + T2 # adds, stores print("T =", T) # prints

# [ ] Write a program to prompt the user for a number, then test if the number is contained in T T = (23, 45, 93, 59, 35, 58, 19, 3) # stores in tuple user = int(input("Type in a Number:- ")) # stores user input in int form if user in T: # if user is in T print(user, "is in the tuple!") # print this else: # else print(user, "is not in the tuple!") # print this

# Write a function to return the largest element in a tuple T T = (23, 45, 93, 59, 35, 58, 19, 3) # stores in tuple num1 = 0 # stores for num in T: # for num in T if num > num1: # if num is greater than num1 num1 = num # num is now num1 else: # else pass # pass print(num1) # prints

# [ ] Write a program to compute the average of the elements in T T = (23, 45, 93, 59, 35, 58, 19, 3) # stores in tuple sum = 0 # stores length = len(T) # stores len for num in T: # for num in T sum += num # add num to sum answer = sum/length # divide sum by length print("Average of the elements in T:-", answer) # prints