[Python-Dev] feature request: inspect.isgenerator

[Fredrik Lundh]

Terry Reedy wrote:

>> def isgenerator(func):
>>    return func.func_code.co_flags == 99
>>
>> but it is rather ugly (horrible indeed).
> 
> To me, part of the beauty of Python is that is so easy to write such things 
> so compactly, so that we do not need megaAPIs with hundreds of functions 
> and methods.

so what's so "easy" about the magic constant 99 ?

is there some natural and obvious connection between generators and that 
number that I'm missing, or is that constant perhaps best hidden inside 
some introspection support module?

(I'm still not sure about the use case, though.  shouldn't a program 
treat a generator just like any other callable that returns an iterator?)

</F>