Regex to pick up comma and period Python

Question

I wanted to create a regex which could match the following pattern:

5,000
2.5
25

This is the regex I have thus far:

re.compile('([\d,]+)')

How can I adjust for the .?

Answer 1

Easiest method would just be this:

re.compile('([\d,.]+)')

But this will allow inputs like .... This might be acceptable, since your original pattern allows ,,,. However, if you want to allow only a single decimal point you can do this:

re.compile('([\d,]+.?\d*)')

Note that this won't allow inputs like .5—you'd need to use 0.5 instead.