Reload after an exception, not possible ?
S.Mientki-nospam at mailbox.kun.nl
Tue Jul 31 23:26:08 CEST 2007
I've a graphical application (wxPython),
where the code in the main GUI loop is given below.
1 JAL_Loaded = False
2 while len(App_Running) > 0:
3 if JALsPy_globals.State == SS_Run:
5 if JAL_Loaded:
6 reload ( JAL_simulation_file )
8 JAL_Loaded = True
9 import JAL_simulation_file
10 except JALsPy_globals.Reload_Exception:
11 JALsPy_globals.State = SS_Halt
The first time the while loop is entered,
JAL_Loaded is False (line 1),
and when I press some button,
the code will enter at line 8,
importing a module, that has executable code with an infinite loop.
To exit this infinite loop, an exception is generated (by a button press),
and program comes back in the above while-loop line (10,11,2).
So far so good.
Then I change the code in the imported file,
and when I start the engine again,
the flag JAL_Loaded is True, so I don't import,
but I reload the file.
Now I get the next exception
UnboundLocalError: local variable 'JAL_simulation_file' referenced before assignment
So obviously I can't reload but have to do an import again
(which makes the code much simpler ;-)
but I don't understand why the reload raises an exception ????
please enlighten me,
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