Python in Keyword

Check if "banana" is present in the list:

fruits = ["apple", "banana", "cherry"]

if "banana" in fruits:
print("yes")

Definition and Usage

The in keyword has two purposes:

The in keyword is used to check if a value is present in a sequence (list, range, string etc.).

The in keyword is also used to iterate through a sequence in a for loop:

Loop through a list and print the items:

fruits = ["apple", "banana", "cherry"]

for x in fruits:
print(x)