你可以使用装饰器:

def my_function(name=None):
    return name

def get_function_name(function):
    return function(name=function.__name__)

>>> get_function_name(my_function)
'my_function'

有几种方法可以达到相同的效果:

import sys
import inspect

def what_is_my_name():
    print(inspect.stack()[0][0].f_code.co_name)
    print(inspect.stack()[0][3])
    print(inspect.currentframe().f_code.co_name)
    print(sys._getframe().f_code.co_name)

注意inspect。堆栈调用比替代方法慢数千倍:

$ python -m timeit -s 'import inspect, sys' 'inspect.stack()[0][0].f_code.co_name'
1000 loops, best of 3: 499 usec per loop
$ python -m timeit -s 'import inspect, sys' 'inspect.stack()[0][3]'
1000 loops, best of 3: 497 usec per loop
$ python -m timeit -s 'import inspect, sys' 'inspect.currentframe().f_code.co_name'
10000000 loops, best of 3: 0.1 usec per loop
$ python -m timeit -s 'import inspect, sys' 'sys._getframe().f_code.co_name'
10000000 loops, best of 3: 0.135 usec per loop

2021年8月更新(原文章为Python2.7编写)

Python 3.9.1 (default, Dec 11 2020, 14:32:07)
[GCC 7.3.0] :: Anaconda, Inc. on linux

python -m timeit -s 'import inspect, sys' 'inspect.stack()[0][0].f_code.co_name'
500 loops, best of 5: 390 usec per loop
python -m timeit -s 'import inspect, sys' 'inspect.stack()[0][3]'
500 loops, best of 5: 398 usec per loop
python -m timeit -s 'import inspect, sys' 'inspect.currentframe().f_code.co_name'
2000000 loops, best of 5: 176 nsec per loop
python -m timeit -s 'import inspect, sys' 'sys._getframe().f_code.co_name'
5000000 loops, best of 5: 62.8 nsec per loop

我把这个实用工具放在附近:

import inspect
myself = lambda: inspect.stack()[1][3]

用法:

myself()

实现您自己的装饰器

# mydecorators.py

def resolve_function(func):
    #in case annotated func is an staticmethod
    if isinstance(func,staticmethod):
        return func.__func__
    return func

def print_my_name(func):
    def function_caller(*args,**kwargs):
        _func = resolve_function(func)
        print("my name is: %s" %_func.__name__)
        return _func(*args,**kwargs)
    return function_caller

然后使用它

# foo.py

from mydecorators import *

@print_my_name
def bar():
    #do something else
#in terminal: my name is: bar

我想检查是最好的方法。例如:

import inspect
def bar():
    print("My name is", inspect.stack()[0][3])

print(inspect.stack()[0].function)似乎也可以工作(Python 3.5)。