Python: Regular expression to match alpha-numeric not working?

Question

I am looking to match a string that is inputted from a website to check if is alpha-numeric and possibly contains an underscore. My code:

if re.match(\'[a-zA         


        

Answer 1

Python has a special sequence \w for matching alphanumeric and underscore when the LOCALE and UNICODE flags are not specified. So you can modify your pattern as,

pattern = '^\w+$'