How can I retrieve the caller's method name in Python without modifying the caller method?

Retrieving the Caller's Method Name in Python

When working with multi-level function calls, it can be useful to access the name of the calling method. This can provide valuable context within called methods. This article explores how to retrieve the caller's method name in Python, avoiding any modifications to the caller method.

Utilizing Inspect

The Python inspect module provides several functions for accessing information about callers. inspect.getframeinfo() and related functions enable us to navigate the frame stack and retrieve the relevant information.

Implementation

Below is a demonstration of how to use inspect:

import inspect

def f1():
    f2()

def f2():
    curframe = inspect.currentframe()
    calframe = inspect.getouterframes(curframe, 2)
    print('caller name:', calframe[1][3])

f1()

In this example, the caller name is retrieved in the f2 function using the calframe variable. The value of calframe1 contains the name of the caller (f1 in this case).

Caution

It's important to note that introspection, while useful for debugging and development, should not be relied upon for production-related purposes. Its results may be affected by various factors and should be approached with caution in critical scenarios.

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