Extract a number from a complicated string in python
I have to read some data from a file, and on each block it always
appears the followng string; xyz.vs.1-81_1 . It appears a lot of time
with different numbers like;
and so on
My problem is that I need to extract from this string the number. For
instance in xyz.vs.1-81_1 I have to extract the number 81, and in
xyz.vs.1-1234_1 I need to get the number 1234.
What is the easiest way of doing this ?