Question

I’m new with python and regular expressions.

I have this regular expressions and i don’t know what is the purpose of this

r'(\d+)\.(\d*)'

all I know is it matches a digit from 0 to 9.

can anyone help me explain it?

thanks..

Answer 1

It matches a string containing one or more decimal digits, followed by a decimal place, followed by 0 or more decimal digits – ie, a floating-point number. It returns the two strings of digits.

For example, if you try it on the string “123.456” it will return (“123”, “456”).