How to recognise "generator functions" ?

[imho]

Hi all.

Is there a way to know if a function object is actually a "generator
function" or not ? e.g.:

def f():
pass

def g():
yield None

f.__class__ is the same as g.__class__ , i.e. "function" type.
But i "know" that the second, when invoked, returns a generator object,
because there is a "yield" statement in its body.

Is there a (eventually hackish) method to get such information ?

Thanks in advance,

Diego.

 

[Georg Brandl]

Hi all.

Is there a way to know if a function object is actually a "generator
function" or not ? e.g.:

def f():
pass

def g():
yield None

f.__class__ is the same as g.__class__ , i.e. "function" type.
But i "know" that the second, when invoked, returns a generator object,
because there is a "yield" statement in its body.

Is there a (eventually hackish) method to get such information ?

99

=> 32 (CO_GENERATOR in compiler.consts) is the flag that indicates a
generator code object.

Georg

 

[imho]

Georg Brandl ha scritto:

99

=> 32 (CO_GENERATOR in compiler.consts) is the flag that indicates a
generator code object.

Georg

What a fast reply!
Thank You very much!

 

[John J. Lee]

Georg Brandl ha scritto:


What a fast reply!
Thank You very much!

Georg, that was cruel <0.2 wink>

Seriously, does anybody have any sensible reason to *use* this
information? Maybe some dynamic code-analysis tool or something?


John