[Tutor] Re: how do I sleep?

[Lloyd Kvam]

Since I have also found that VB programs (even on NT) require an occassional
call to DoEvents, it is probably a defect in the VB runtime.  So far, I have
not experienced a need for this kind of function in my Python code.

alan.gauld@bt.com wrote:

>>I'm not aware of anything like that (in Python or C) other than
>>"sleep".  If you sleep, then your process isn't doing anything and the
>>kernel will (should!) give the CPU to another process that is doing
>>something.  That's what you're looking for, right?
>>
> 
> Kind of. What he's looking for is a call that tells the OS to 
> process any other active processes but if there aren't any come 
> right back here. In other words only pause if you need to. 
> Sleep pauses regardless.
> 
> This is only necessary on coopoerative multitasking environments 
> like Win3x and Win 9x and early OS/2 and Mac. On Unix, NT etc this 
> should not be needed as the kernewl will switch processes 
> pre-emptively. (Win 9x will do so too provided the program is 
> 100% Win32 clean, unfortunately few are which is why so many 
> programs still hang for long periods in Win9x...)
> 
> Alan g.
> 
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Lloyd Kvam
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