double import protection - how to ?

Helmut Jarausch jarausch at
Mon Dec 1 17:09:55 CET 2008

Peter Otten wrote:
> Helmut Jarausch wrote:
>> Peter Otten wrote:
>>> Helmut Jarausch wrote:

>> Then it's a problem with a problem with a webserver written in Python
>> (Karrigell-3.0) and probably related to multi-threading (the statements in
>> my module get definitely executed more than once).
> Maybe you have the reload_modules* option switched on? That would defeat
> Python's caching in order to ease development.
> (*) see

Thanks Peter for the hint.
Indeed, I am trying to port my application to Karrigell-3.0,
where Python's caching is bypassed and the statements in the
module get executed each time. So, I have to install a trap door
using a global variable.


Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany

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