Question on difference between LambdaType and FunctionType

[Chris Angelico]

On Mon, Nov 26, 2018 at 6:54 AM Iwo Herka <iwoherka at gmail.com> wrote:
>
> > That said, though: if you want to distinguish a lambda function from a
> > def function, you can do so with reasonable reliability using the
> > function's name:
>
> That's what I'm using currently, thank you for the suggestion.
> Nonetheless, it feels hacky - that's why I tried to use LambdaType and,
> to my surprise, it didn't do the job.
>

Yeah, not surprised you got surprised by that! But the real question
is: why do you care about the difference? What is it in your code that
cares about whether a function was created with "def" or with
"lambda"? My suspicion is that, in most cases, the difference actually
*is* the name (for instance, you might identify 'def' functions by
name, but 'lambda' functions by identity), so it's not hacky to use
the __name__ to distinguish them.

ChrisA