From 9aaabe07f3807ae7f0a8344593066c881bc8db69 Mon Sep 17 00:00:00 2001
From: peterscherpelz <31747262+peterscherpelz@users.noreply.github.com>
Date: Mon, 14 Jun 2021 13:33:02 -0700
Subject: callbacks.py: Fix bound method py2 -> py3 syntax (#2012)

---
 Python/pywarpx/callbacks.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Python/pywarpx/callbacks.py')

diff --git a/Python/pywarpx/callbacks.py b/Python/pywarpx/callbacks.py
index 3d5bb1477..d0b1688a9 100644
--- a/Python/pywarpx/callbacks.py
+++ b/Python/pywarpx/callbacks.py
@@ -148,7 +148,7 @@ class CallbackFunctions(object):
         if isinstance(f,types.MethodType):
             # --- If the function is a method of a class instance, then save a full
             # --- reference to that instance and the method name.
-            finstance = f.im_self
+            finstance = f.__self__
             fname = f.__name__
             self.funcs.append([finstance,fname])
         elif callable(f):
-- 
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