xml to integer

[wavic]

Hello!
You should look at the code, not just blindly copy/paste it. 
'tmp/test.xml' is 'test.xml' file which I created from the xml snippet that you have provided. And its location is in the tmp/ directory. But this is on my computer. The path and the file name on yours could be different.

Now what about lxml - has to be installed?

Yes. The command to do it is: pip install lxml
As @snippsat already noticed