[Python-Dev] pyc files, constant folding and borderline portability issues (original) (raw)

Cesare Di Mauro cesare.dimauro at a-tono.com
Tue Apr 7 17:19:10 CEST 2009

In data 07 aprile 2009 alle ore 17:19:25, <skip at pobox.com> ha scritto:

Cesare> The only difference at this time is regards invalid operations, Cesare> which will raise exceptions at compile time, not at running Cesare> time. Cesare> So if you write: Cesare> a = 1 / 0 Cesare> an exception will be raised at compile time. I think I have to call bzzzzt here. This is a common technique used during debugging. Insert a 1/0 to force an exception (possibly causing the running program to drop into pdb). I think you have to leave that in. Skip

Many tests rely on this, and I have changed them from something like:

try: 1 / 0 except: ....

to

try: a = 1; a / 0 except: ....

But I know that it's a major source of incompatibilities, and in the final code I'll enabled it only if user demanded it (through a flag).

Cesare

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