Fix "Hello World" script

Prior to this change, when I ran this script, I got a syntax error:

```
    (eval `Hello World`)
          ^
SyntaxError: invalid syntax
```

With the changes in this pull request, I no longer get that error. Instead, it produces this output:

```
Hello World
```

@shayfrendt: Does this help?
Oh! I totally get it now.

While you're in here, would you be willing to change this output to "Hello, Python Namibia!" ?