Make a function call itself after set amount of time
Peter Otten
__peter__ at web.de
Fri Jan 16 05:13:41 EST 2004
Bart Nessux wrote:
> Peter Otten wrote:
>> Bart Nessux wrote:
>>
>>
>>>Bart Nessux wrote:
>>>
>>>>How do I make a function call itself every 24 hours. Also, is there a
>>>>way to start the program automatically w/o depending on the OS functions
>>>>like 'Task Scheduler' or 'Start Up Items'... this is on Windows 2k and
>>>>xp. Below is an example of what I'm trying to do.
>>
>>
>> [...]
>>
>>
>>>I figured it out. I added this to the function definition:
>>>ipconfig_email()
>>
>>
>> Note that Python has a limit for nesting functions:
>>
>>
>>>>>depth = 0
>>>>>def callself():
>>
>> ... global depth
>> ... depth += 1
>> ... callself()
>> ...
>>
>>>>>try:
>>
>> ... callself()
>> ... except RuntimeError, e:
>> ... print "depth", depth
>> ... print e
>> ...
>> depth 999
>> maximum recursion depth exceeded
>>
>>
>>>>>999/365.25
>>
>> 2.7351129363449691
>>
>> This means that your app will probably crash in less than three years.
>> Would that be a problem on W2K ?
>>
>> If so, a loop could go much longer:
>>
>> while True:
>> ipconfig_email()
>>
>> Seriously, you should reconsider the OS features.
>>
>> Peter
>>
>
> The computers are turned off and on... the script starts at boot. I
> don't think I'll hit a limit, do you?
No, I just wanted to warn you that your recipe may fail when applied on
tasks that are invoked with higher frequency - and of course test your
confidence in W2K :-)
Peter
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