I've just tried to run `python -m SimpleHTTPServer 8000` in a directory where I have some basic web files. It seems to run fine at first, on the command line it prints:

`Serving HTTP on 0.0.0.0 port 8000 ...`

However, when I try to view my page on `http://127.0.0.1:8000` in browser, I get this error message:

> 
> A server error occurred. Please contact the administrator.
> 
> 
> 

Sorry if this seems vague, but I'm not a Python developer so I have no idea why it's not working. Do you have any ideas why or how to start debugging this issue?