When code.py not running, "ReloadException:" is printed in the REPL

With 7.2.2, `ReloadException` is printed when a file is written when code.py is not running or does not exist

```py
>>> 
ReloadException: 
>>> 
ReloadException: 
>>> 
ReloadException: 
>>> 
ReloadException: 
>>> 
ReloadException: 
>>> 
ReloadException: 
>>> 
ReloadException: 
>>> 
ReloadException: 
>>> 
ReloadException: 
>>>
```

This is probably the cause of #6159.
