You can simply check if the list is empty using the if statement in Python. Use the len() methods and if len is zero then the list is empty.
Another method uses the bool() function because empty lists are considered False in Python. So would return False if the empty list was passed as an argument.
Python checks if the list is empty example
Simple example code.
Using PEP 8 recommended method
This is the most Pythonic way of checking the empty list. Since an empty list is False so if statement block executes.
list1 = []
if list1:
print("list is not empty")
else:
print("list is empty")Output:
Using the bool() function
If bool() returns true means the list is not empty otherwise returning false means the list is empty.
list1 = []
list2 = [1, 2, 3]
print(bool(list1))
print(bool(list2))Output:
False
True
Using if statement with Using len()
list1 = []
if len(list1): # Or len(l2) == 0
print("list is not empty")
else:
print("list is empty")Output: list is empty
Comment if you have any doubts or suggestions on this Python list topic.
Note: IDE: PyCharm 2021.3.3 (Community Edition)
Windows 10
Python 3.10.1
All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.