How to delay until a next increment of time occurs ?

[MRAB]

On 2019-11-14 20:00, R.Wieser wrote:
> Dave,
> 
>> Can you expand on what you are trying to accomplish with this?
> 
> There is a small 433 MHz rf transmitter connected to the pin, and when I
> send the right pattern a wireless wall-wart will respond and switch a lamp
> on or off.     Its just ment as an example of a real-world application of
> Python, nothing serious.
> 
> Ofcourse, by doing so I'm learning about how to use python (and the Pi)
> myself too. :-)
> 
>> It seems a small C program or library you interface python too is a better 
>> solution.
> 
> :-)  I already wrote that program in C{something} (I'm not sure what my Pi
> offers by default) a while ago, but "ported" it to python.  For the above
> mentioned "example" reason.
> 
> ... Which is also why I didn't even try to just shell to that program, or
> try to interface with a C{something} library.
> 
> Though doing such interfacing is in the pipeline (I've already
> found-and-stored some documentation about it).
> 
Not everything needs to be done in Python. You should use an extension 
for that kind of thing and then tell it what to do from Python.