Tuples

• Ordered sequence.
• Compound data types : strings, integer, float They can all be contained in a tuple tuple1 = ("disco",10,1.2 )
• Immutable, which means we can’t change them.
• Manipulate a tuple, we must create a new tuple instead.

Indexing

Each element of a tuple can be accessed via an index.

Concatenate Tuples

We can concatenate or combine tuples by using the + sign:

# Concatenate two tuples

tuple2 = tuple1 + ("hard rock", 10)
tuple2
# ('disco', 10, 1.2, 'hard rock', 10)

Sorting

Ratings = (0, 9, 6, 5, 10, 8, 9, 6, 2)

# Generate a sorted List from the Tuple
RatingsSorted = sorted(Ratings)
RatingsSorted
# [0, 2, 5, 6, 6, 8, 9, 9, 10] # list

Nested Tuple

A tuple can contain another tuple as well as other more complex data types.

# Create a nest tuple

NestedT =(1, 2, ("pop", "rock") ,(3,4),("disco",(1,2)))

Lists

A list is a sequenced collection of different objects such as integers, strings, and other lists as well. The address of each element within a list is called an index. An index is used to access and refer to items within a list. To create a list, type the list within square brackets [ ], with your content inside the parenthesis and separated by commas.

List Content

Lists can contain strings, floats, and integers. We can nest other lists, and we can also nest tuples and other data structures. The same indexing conventions apply for nesting:

# Sample List

["Michael Jackson", 10.1, 1982, [1, 2], ("A", 1)]

Method extend

# Use extend to add elements to list

L = [ "Michael Jackson", 10.2]

# add two new elements to the list
L.extend(['pop', 10]) # ['Michael Jackson', 10.2, 'pop', 10]

Method apply

L = [ "Michael Jackson", 10.2]

# If we append the list ['a','b'] we have one new element consisting of a nested list:

L.append(['a','b'])
# ['Michael Jackson', 10.2, 'pop', 10, ['a', 'b']]

delete an element of a list using the “del” command; we simply indicate the list

set one variable, B equal to A, both A and B are referencing the same list.

Multiple names referring to the same object is known as aliasing.

You can clone list “A” by using the following syntax.