Importable execution position in python

where_am_i.py

"""
   Importable get called from file & location. 
   Based on a tweet by Ned Batchelder @nedbat
"""
import inspect
def where_am_i():
    """ Return the current filename and line number. """
    bf = inspect.currentframe().f_back
    return (bf.f_globals.get("__file__", "interactive"), bf.f_lineno)

if __name__ == "__main__":
    print(f"At {where_am_i()[1]} of {where_am_i()[0]}")

This would typically be used something like:

from where_am_i import where_am_i

# At some point in your code
print(f"At {':'.join(str(w) for w in where_am_i())}")