🐍 Tuples

Immutable lists. Static arrays.

A tuple is a sequence of values much like a list. The values stored in a tuple can be any type, and they are indexed by integers. The important difference is that tuples are immutable. Tuples are also comparable and hashable so we can sort lists of them and use tuples as key values in Python dictionaries.

Syntactically, a tuple is a comma-separated list of values:

t = 'a', 'b', 'c', 'd', 'e'

Parentheses may be used

Tpl = ('a','b','c','d','e')
print ( Tpl )
print ( Tpl[1] )
print ( Tpl[1:3] )
print(Tpl.index('a')) 

You cannot change the values of a Tuple.

Empty_tuple = tuple()
one_value_tpl = ( 4,); # With the comma and semicoma
Alert= ("Tornado", "Radiation", "Zombies")
for a in Alert:
    print(a)
if "Zombies" in Alert:   # containment in tuple
    print("Oh, F*ck")
how_many_alerts = len(Alert)
position = Alert.index("Radiation")
del Alarm #  Alarm tuple deleted

---

fruit = tuple(( "banana", "banana", "banana" )) 
   # Constructed, use   Double parentesys 
fruit.count("banana")
print(sorted(fruit))

Packing & Unpacking

Person = (‘Jane’,’Doe’,21,'Female')
(Name,Surname,Age,Gender) = Person

my_list = list(Tpl)  # Converts tp list
tpl2 = tuple(my_list) #Converts to tuple 
min(Tpl) 
max(Tpl)

>>> t = tuple('lupins')
>>> print(t)
('l', 'u', 'p', 'i', 'n', 's') 

👻 Empty tuple

t = tuple() 

🍟 Tuple from a sequence

>>> t = tuple('lupins')
>>> print(t)
('l', 'u', 'p', 'i', 'n', 's') 

👈🏼 Indexing

>>> t = ('a', 'b', 'c', 'd', 'e')
>>> print(t[0])
'a' 

>>> print(t[1:3])
('b', 'c')

You can't modify the elements of a tuple, but you can replace one tuple with another:

>>> t = ('A',) + t[1:]
>>> print(t)
('A', 'b', 'c', 'd', 'e')