* Richard Lamboj:
is there any way to get the name from the actual called function, so that the
function knows its own name?
There was an earlier thread about this not very long ago.
General consensus, as I recall, to replace function with an object of a class
(possibly with __call__ method if it is to be function-like, "functor").
An alternative is to treat the function itself as an object. I posted code for a
decorator to help do that. Of course today I deleted that code (I just use a
single 'x.py' file for various examples), but you may find it by Googling;
however, I recommend the consensus view of "real" object.
A third way, even less desirable IMVHO, might be to use introinspection.
Let's see, ... reusing that 'x.py' file again ...
<code file="x.py">
#Py3
import inspect
def foo():
frame = inspect.currentframe()
info = inspect.getframeinfo( frame )
print( info )
foo()
</code>
<output>
Fatal Python error: Py_Initialize: can't initialize sys standard streams
Traceback (most recent call last):
File "C:\Program Files\cpython\python31\lib\encodings\__init__.py", line 31,
in <module>
import codecs
File "C:\Program Files\cpython\python31\lib\codecs.py", line 8, in <module>
"""#"
KeyboardInterrupt
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
</output>
Oh my, I crashed the Python interpreter! This is my third time stumbling upon a
crash-the-interpreter bug in CPython 3.x. I think I'm good at crashing things.
But OK, let's see. Well. Hm.
<code file="x.py">
#Py3
import inspect
def foo():
frame = None; info = None; s = None;
frame = inspect.currentframe()
info = inspect.getframeinfo( frame )
s = "Pleased to meet you, I was originally called '{}'!".format(
info.function )
print( s )
bar = foo
del foo
bar()
</code>
<output>
Pleased to meet you, I was originally called 'foo'!
</output>
But as mentioned, I'd personally choose a "real" object instead of a bare
function.
Cheers & hth.,
- Alf
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