Sometimes, we want to check if a string contains a number with Python.
In this article, we’ll look at how to check if a string contains a number with Python.
How to check if a string contains a number with Python?
To check if a string contains a number with Python, we can use the re.search method.
For instance, we write
import re
def has_numbers(input_string):
return bool(re.search(r'\d', input_string))
x = has_numbers("I own 1 dog")
to create the has_numbers function.
In it, we call re.search with a regex string that matches digits in the input_string to see if input_string has any digits inside.
The we call has_numbers with a string.
And since it has a number inside, x is True.
Conclusion
To check if a string contains a number with Python, we can use the re.search method.
