Why is calling eval so slow?
Steven D'Aprano
steve+comp.lang.python at pearwood.info
Sat May 5 22:29:03 EDT 2018
On Sat, 05 May 2018 20:11:28 +0300, Serhiy Storchaka wrote:
>> Why so slow?
>
> 1. Add an overhead of calling eval(), not just looking up its name. It
> is comparable with a time of calling a simple lambda. 2. Add an overhead
> of getting the globals dict and creating a locals dict.
[...]
Ah, that makes sense.
So presumably the fastest way to run some code in Python is to put it
into a function and call the function, rather than playing with eval or
exec, right?
Thanks.
--
Steve
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