gonzlobo a écrit :
> Greetings,
> I've been using Python to successfully parse files. When the entire
> program was smaller, the variable firstMsg worked fine, but now
> doesn't because it's used in function PID_MinMax. I know it's a result
> of variables and their scope.
>
> I declare the variable 'firstMsg = 0' in the main loop, pass it to the
> function 'PID_MinMax(firstMsg, PID)'. When the function increments the
> variable, it doesn't pass it back to the main program. What am I doing
> wrong?
>
>
> ---- major snippage) ---
> firstMsg = 0
(snip)
> def PID_MinMax(firstMsg, PID):
(snip)
> if firstMsg != 0:
if firstMsg:
> tDelta = tCurrent - pLast[idx]
> if tDelta > pMax[idx]:
> pMax[idx] = tDelta
> if tDelta < pMin[idx]:
> pMin[idx] = tDelta
> elif firstMsg == 0:
else:
> firstMsg = 1
> pLast[idx] = tCurrent
> print pMin, pMax
> return firstMsg
> ############## main ##############
(snip)
> if PID in pPIDs:
> PID_MinMax(firstMsg, PID)
firstMsg = PID_MinMax(firstMsg, PID)
You're returning firstMsg from PID_MinMax, but discarding the value...
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