Python is a great language for automating tasks, and creating a list is a common task that can be easily automated. In this article, we’ll show you how to create a list in Python using a few different methods.
Creating a list in Python is a simple process. You can create a list using the built-in list type, or you can use the Python standard library’s collections module to create a list.
If you’re just starting out with Python, we recommend using the built-in list type. It’s easy to use and you don’t need to install any extra modules.
To create a list using the built-in list type, just use the square brackets [ ]:
my_list = [‘item1’, ‘item2’, ‘item3’]
If you want to create a list of integers, you can use the range() function:
my_list = list(range(10))
If you want to create a list of strings, you can use the string.split() method:
my_list = “item1,item2,item3”.split(“,”)
You can also create a list from a file. To do this, you can use the built-in open() function:
with open(‘my_file.txt’) as f:
my_list = f.readlines()
Once you have a list, you can access the items in the list by their index. To do this, just use the square brackets [ ] with the index of the item you want to access:
my_list = [‘item1’, ‘item2’, ‘item3’]
print(my_list[0]) # ‘item1’
print(my_list[1]) # ‘item2’
print(my_list[2]) # ‘item3’
You can also use negative indexes to access items from the end of the list:
print(my_list[-1]) # ‘item3’
print(my_list[-2]) # ‘item2’
print(my_list[-3]) # ‘item1’
If you want to change an item in the list, you can just reassign the value at the index:
my_list = [‘item1’, ‘item2’, ‘item3’]
my_list[1] = ‘new item’
print(my_list) # [‘item1’, ‘new item’, ‘item3’]
You can also add items to the end of a list using the append() method:
my_list = [‘item1’, ‘item2’, ‘item3’]
my_list.append(‘new item’)
print(my_list) # [‘item1’, ‘item2’, ‘
Other related questions:
How do you auto generate a list in Python?
There is no single way to “auto generate a list in Python”. However, there are many ways to generate lists automatically, depending on what you want the list to contain.
Some common ways to generate lists automatically are by using list comprehensions, generators, or by using built-in functions like range() or zip().
How do you create a quick list in Python?
Using the list() function:
list([1, 2, 3, 4, 5])
Using the range() function:
list(range(1, 6))
Does list () create a new list?
No, list() does not create a new list.
Can Python be automated?
Python can be automated using a number of different techniques and libraries.
Bibliography
- Automating the creation of a list of lists – Python – Stack Overflow
- Tutorial for Python Lists – Open Source Automation
- Chapter 4 – Lists – Automate the Boring Stuff with Python
- How to Automate Your To-Do List With Python | by Rory Spanton
- Python from Scratch:. Automate a to-do list using … – Medium
- Python Lists from Scratch !!!. Let’s … – Towards Data Science
- How to Create a Python List? – Finxter