Line Numbers Errors from command line refer to python code

[Chris Greene]

Hello,

Consider the following script:

```

$ cat test.sage

//

$ sage test.sage

  File "test.sage.py", line 6

    //

     ^

SyntaxError: invalid syntax
```

The error message is for the derived python file, rather than the the sage script. Loading scripts from within the interpreter using sage's builtin `load` function gives the expected line number. Assuming that this is incorrect behavior, is fixing this as simple as installing whaterver hooks that the `load` function uses on errors?

Chris