在 Python 中打印函数定义和调用的地址

Question

I need to have a couple of functions in Python (either variation) to find and print the name of the file they are stored or called from. For example, consider the following functions are stored in at this address: /my/py/func.py :

def this_file():
# print the address of this file
print('this function is stored at %s' % this_file_address)

and

def that_file():
# print the address of the file that is calling this function
print('this function is called form a file at %s' % that_file_address)

And I have a piece of code stored in /my/py/calls.py :

from func import *
this_file()
that_file()

Now, I want the followings to be printed by the above functions:

/my/py/func.py 
/my/py/calls.py

How can I write these functions?

---

Edit #1 It seems calling that_file() from Jupyter notebooks should be handled differently.

Answer 1

import os                                                                                                                                                           
import sys
def this_file():
         print(os.path.realpath(__file__))

def that_file():
        print(os.getcwd() + "/" + sys.argv[0])

I think this is what you're looking for.

Answer 2

Thanks to @quantik and @Iguananaut (see this ), I could find a more general solution that works for calling Python functions from .py and .ipynb files:

func.py

Content:

from func import *
this_file()
that_file()
that_notebook()

calls.py

Contents:

from func import *
this_file()
that_file()
that_notebook()

Outputs:

python calls.py

 /home/jovyan/work/calls.py No active session found! Are you calling me from a Python file? Try "that_file()" instead. jovyan@c5cd7b908543:~/work$

calls.ipynb

Contents:

 from func import * this_file() that_file() that_notebook()

Outputs:

calls.ipynb

 /home/jovyan/work/func.py Are you calling me from a Jupyter Notebook? Try "that_notebook()" instead. work/calls.ipynb