How to create an empty list in python

In this post, we will see how to create an empty list in python.

There are two ways to create an empty list in Python.

Let’s see this with the help of example.


list1=[]
list1.append(1)
list1.append(2)

list2=list()
list2.append(1)
list2.append(2)

print("List 1:",list1)
print("List 2:",list2)

list1=[]

list1.append(1)

list1.append(2)

list2=list()

list2.append(1)

list2.append(2)

print("List 1:",list1)

print("List 2:",list2)

Output:

List 1: [1, 2] List 2: [1, 2]

Which is faster: [ ] or list()

list() is inherently slower than [], because of

symbol lookup (no way for python to know in advance if you did not just redefine list to be something else!)
function invocation
then it has to check if there was iterable argument passed (so it can create list with elements from it)

That’s all about creating empty list in python.

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