Tuples and Sets 30/03

# Tuples

# Similar to lists, but cannot be modified - IMMUTABLE

#my_tuple = (1,2,3,4,5) # cannot be sorted or reversed like a list

#indexes are still usable for finding and printing etc, changing the values is the only key difference

# Tuples can be used over lists to make it simpler and more efficient, for example it points out something cannot be changed

#or shouldn't be modified. They are also slightly faster than lists.

# a user's destination in a cab ride could be a tuple, and a new one generated each time

# but the driver's location may need to be a list as it is constantly changing and updating

#print(user.items()) - this will print values from a dictionary as a tuple

#new_tuple = my_tuple[1:2]

#print(new_tuple) # may print with a comma at end, e.g. (2,)

#x,y,z, *other = (1,2,3,4,5) # this assigns each variable to the value, e.g. x=1, y=2 etc

#print(x,y,other)

#tuple.count(5) - will count how many times that value appears in tuple

#tuple.index(5) - will return the value at index of 5

#print(len(my_tuple)) - will print the length of the tuple

# Sets

# my_set = {1,2,3,4,5} # similar to dictionary in format but no key:value pairs

# my_set.add(100) # This will be added, as it is unique

# my_set.add(2) # this will not appear in the print, as there is already a 2

# print(my_set) # will only return unique items, so if there are duplicates you will only see 1 instance

# my_list = [1,2,3,4,5,5]

# print(set(my_list)) # set() will remove all duplicates from the previously created list, here it removes the 5

# my_set = {1,2,3,4,5,5}

# new_set = my_set.copy()

# #print(1 in my_set) # cannot use standard index checking, have to use in, or len to find length

# print(list(my_set))

# print(new_set)