Tuples

Tuples

1. Definition

   • Immutable sequences
   • Used to store multiple items

2. Creation

   • Using parentheses
     • Example: `my_tuple = (1, 2, 3)`
   • Using the `tuple()` constructor
     • Example: `my_tuple = tuple([1, 2, 3])`

3. Tuple operation

   • Concatenation
     • Using `+` operator
       • Example: (1, 2) + (3, 4) results in (1, 2, 3, 4)
   • Replication
     • Using `*` operator
       • Syntax: `tuple_name * n`

4. Modifying Tuples

   • Converting tuples to lists
     • Use list() function

5. Built-in function

   • len()
     • Function that returns the number of items
       • Syntax: len(tuple)
   • tuple()
     • The tuple() constructor is used to create tuples. It can create an empty tuple or convert an iterable (like a list, string, or set) into a tuple.
   • count()
     • A method to count occurrences
     • Returns the number of times a value appears
       • Example tuple: (1, 2, 2, 3, 4)
         • count(2) returns 2
   • index()
     • A method used to find the first occurrence of a value
       • Syntax
         • Written as `tuple.index(value, start, end)`
       • Returns the index of the first occurrence of the value
   • sorted()
     • Used to sort iterables
     • Returns a new sorted list
     • Convert tuple to a list
     • Syntax
       • sorted(<iterable sequence>, [reverse=False])
   • min()
     • Returns the smallest element
       • Example: result = min(my_tuple)
   • max()
     • Returns the largest element
       • Example: result = max(my_tuple)
   • sum()
     • Calculates the total of numeric values
       • Example: sum((1, 2, 3)) returns 6

6. Type of tuple

   • Single element tuple. eg. T= (12,)
   • Nested Tuple eg. T= (23, (45, 67, 88), 56, 78)
   • Empty tuple eg. T= ()