How to Determine the Caller's Method Name in Python?

How to Determine the Caller's Method Name Within a Called Method

In Python, understanding the caller-callee relationship is crucial for debugging and code analysis. A common problem encountered by developers is identifying the caller's method name within the called method. This information is often insightful for debugging and can help identify the source of a problem.

To address this issue, Python provides the inspect module that offers several functions for accessing information about the current stack frame, including the caller's details. The inspect.getframeinfo() function plays a vital role in obtaining this information.

Consider the following example:

def method1(self):
    ...
    a = A.method2()

def method2(self):
    ...

In this scenario, if you want to determine the caller's method name without modifying method1(), you can use inspect.getframeinfo() within method2() as follows:

import inspect

def f1(): f2()

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

f1()

The output of this code will be:

caller name: f1

This approach leverages introspection techniques to access information about the caller's method name. However, it's important to note that this introspection is primarily intended for debugging and development purposes.

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