Python - Check if variable is tuple

Python - Check if variable is tuple

Last Updated : 20 Feb, 2025

We are given a variable, and our task is to check whether it is a tuple. For example, if the variable is (1, 2, 3), it is a tuple, so the output should be True. If the variable is not a tuple, the output should be False.

Using isinstance()

isinstance() function is the most common and Pythonic way to check if a variable is a tuple.

Python

x = (1, 2, 3) 
 # Check if 'x' is an instance of the tuple class
res = isinstance(x, tuple) 
print(res)

Output

True

Explanation:

x = (1, 2, 3) creates a tuple containing the values 1, 2, and 3.
isinstance(x, tuple) verifies if the variable "x" is of type tuple returning True if the check is successful.

Using is Operator

We can use type(x) is tuple to strictly check if x is exactly a tuple. This method ensures an exact type match and does not allow any tuple subclasses.

Python

x = (1, 2, 3) 
# Strictly check if the type of 'x' is exactly 'tuple'
res = type(x) is tuple  
print(res)

Output

True

Explanation:

type(x) is tuple checks if x is strictly a tuple using the is operator.
It does not allow subclass types, making it a more rigid check than isinstance(x, tuple).

Using collections.abc.Sequence

We can use collections.abc.Sequence to check if a variable behaves like a tuple (or any sequence type). This approach is more flexible than type() or isinstance(x, tuple) as it checks for sequence-like behavior instead of an exact type match.

Python

from collections.abc import Sequence  # Import the Sequence abstract base class

x = (1, 2, 3)  
# Check if 'x' is an instance of the Sequence class
res = isinstance(x, Sequence) 
print(res)

Output

True

Explanation:

isinstance(x, Sequence) checks if x supports sequence behaviors like indexing and iteration.
It includes tuples, lists, and other sequence types, making it broader than isinstance(x, tuple).

Python - Check if variable is tuple

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