Sometimes, we want to check for NaN values with Python.

In this article, we’ll look at how to check for NaN values with Python.

How to check for NaN values with Python?

To check for NaN values with Python, we can use the math.isnan method.

For instance, we write

import math

x = float('nan')
is_nan = math.isnan(x)

to call math.isnan on x to check if x is NaN.

Since x is NaN, is_nan is True.

Conclusion

To check for NaN values with Python, we can use the math.isnan method.