[zeromq-dev] Python message passing
sustrik at fastmq.com
Fri Apr 24 17:53:54 CEST 2009
> <pedantic_comment importance="feel free to ignore">
> Strongly typed is different from static typed. Python is very strongly
> typed, as there is no way to change the type of an object once it is
> created. It is however dynamic, meaning that types are figured out at
> runtime. Similarly C is static typed, but weak, as types can be cast to
> other types pretty much at will, but must always be declared.
> Also of relevance, strength of typing is usually seen as a relative
> value, or perhaps a scale, but not a binary value.
Touche! I've been frivolous with the terminology :)
> 1. Rapid prototyping.
> 2. High-perf system written primarily in C can still benefit from
> administrative components written in Python. With administration the
> performance is irrelevant. Ability to write/change code easily is
> much more important. (It would be nice to have Perl binding for
> exactly this reason.)
> 3. Even python can benefit from features like ability to handle
> thousands of connections at the same time, fast disk offload of
> messages, auto-reconnection as application fail and get restarted etc.
> Aha, this makes sense to me now. Thinking about point 2, it also seems
> to me there could be information sources to the high perf system that
> also don't need the speed, but should interface with it (parts of the
> application proper, not just admin).
Right, for any application where a human being is source of events
Python vs. C doesn't make any difference. I've tested how quickly I am
able to hit the same button twice in a sequence: 30 milliseconds. Let's
say 18 year old Kenyan sprinter would able to get it down to 15 ms. A
neurotic person would be able to shave off additional 5 ms. Still, it's
no match for either Python or C.
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