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Get the name of a function

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  Get the name of a function gervaz <gervaz@gmail.com> - 2011-08-05 11:52 -0700
    Re: Get the name of a function Emile van Sebille <emile@fenx.com> - 2011-08-05 13:19 -0700
    Re: Get the name of a function Chris Rebert <clp2@rebertia.com> - 2011-08-05 14:19 -0700
    Re: Get the name of a function Grant Edwards <invalid@invalid.invalid> - 2011-08-05 22:05 +0000

#10920 — Get the name of a function

Hi all, is there a way to retrive the function name like with
self.__class__.__name__?

Using self.__dict__.__name__ I've got

>>> def test():
...     print(self.__dict__.__name__)
...
>>> test
<function test at 0x0178DDF8>

But I really just want the function name, so 'test'

Any help?

Thanks,

Mattia

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#10928

On 8/5/2011 11:52 AM gervaz said...
> Hi all, is there a way to retrive the function name like with
> self.__class__.__name__?

yes, but not reliably:

Python 2.6.4rc2 (r264rc2:75497, Oct 20 2009, 02:55:11)
[GCC 4.4.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
 >>> def test():pass
...
 >>> test.__name__
'test'
 >>> b=test
 >>> b.__name__
'test'
 >>>


Emile

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#10934

On Fri, Aug 5, 2011 at 11:52 AM, gervaz <gervaz@gmail.com> wrote:
> Hi all, is there a way to retrive the function name like with
> self.__class__.__name__?
>
> Using self.__dict__.__name__ I've got
>
>>>> def test():
> ...     print(self.__dict__.__name__)
> ...

Er, where did `self` magically come from?

>>>> test
> <function test at 0x0178DDF8>
>
> But I really just want the function name, so 'test'
>
> Any help?

Courtesy of the "Observations on the three pillars of Python execution" thread:

from inspect import currentframe

def foobar():
    my_name = currentframe().f_code.co_name
    print(my_name)

I would recommend against a function knowing its own name though,
unless it's for debugging or necessary metaprogramming purposes.

Cheers,
Chris

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#10937

On 2011-08-05, gervaz <gervaz@gmail.com> wrote:

> Hi all, is there a way to retrive the function name like with
> self.__class__.__name__?

Not really.  There may not be any such thing as "the function name". A
function may have zero names, it may have a dozen names.  It may have
names but only in namespaces that aren't accessible.

This question comes up at least once a month, so look back through the
group for threads about finding an object's name, finding a
parameter's name, etc.

Here's a nice article on introspection, but what it talks about as a
"function name" probably isn't what you're interested in:

  http://www.ibm.com/developerworks/library/l-pyint/index.html

Here's a stack-overflow question similar to yours:

  http://stackoverflow.com/questions/1538342/how-can-i-get-the-name-of-an-object-in-python

-- 
Grant Edwards               grant.b.edwards        Yow! But they went to MARS
                                  at               around 1953!!
                              gmail.com            

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