How do I find one number in a string in Python?

Question

I have a file called something like FILE-1.txt or FILE-340.txt. I want to be able to get the number from the file name. I\'ve found that I can use

numbers = re.f         


        

Answer 1

Use search instead of findall:

number = re.search(r'\d+', filename).group()

Alternatively:

number = filter(str.isdigit, filename)