Python Join List - Javatpoint
In this topic, we will discuss how we can join two or more lists with different functions of Python. Before going through the concepts, let's take a brief introduction to the Python List. A Python List is the collection of multiples items that are grouped in the same name. It can store different data types (integer, string, float, etc.) items inside a square bracket [], which is separated by a (,) comma.
List.py
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When we join two or more lists together in a Python program, it gives a joined lists. And this process is called composition or joining of lists.
Let's discuss the different ways to join two or more lists in Python:
A join() function is used to join an iterable list to another list, separated by specified delimiters such as comma, symbols, a hyphen, etc.
Syntax
str_name: It is the name of the delimiter that separates an iterable list.
iterable: It is the list that contains a set of elements and joins with a delimiter.
Return Value: It returns a concatenated list that is separated by specified delimiters.
Join.py
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Prog.py
Output
Integer list: It collects all integers in a list called the integer list, and we cannot join two integer lists in Python using the join() function. Therefore, we use a map() function that converts an integer list into a string. After that, we use a join() function to join map() function results with appropriate delimiters.
Syntax:
In the above syntax, a map() function has two parameters, list_name, and str. Where list_name is the name of integers list and str represents the string. A map() function converts the list_name into the string (str).
Let's create a program to convert the given integers list into a string using the map() function and then join() function to join the list.
Convert.py
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An append() function is used to sequentially add or join each element of an iterable list at the end of another list using for loop. Let's create a simple program to add elements of a list at the end of another list using the append() function.
Append.py
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Let's create a simple program in Python to concatenate multiple lists using the chain() method by importing the itertools package.
New.py
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Let's consider an example to join two lists in Python using the (+) plus operator.
Mypro.py
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Consider an example to join two lists of in Python using * operator.
Mypro2.py
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Let's write a simple program to join two lists using extend() method in Python.
Prog.py
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