From adb50f8f6a04c68c542c9dd7db8f2b24ae00ad47 Mon Sep 17 00:00:00 2001
From: Maksim Rakitin <mrakitin@bnl.gov>
Date: Tue, 2 Feb 2021 14:10:31 -0500
Subject: [PATCH] Store modules and line numbers as strings, not the whole
 frames

---
 ophyd/ophydobj.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ophyd/ophydobj.py b/ophyd/ophydobj.py
index 315a93ea1..3aaa80ac9 100644
--- a/ophyd/ophydobj.py
+++ b/ophyd/ophydobj.py
@@ -144,7 +144,8 @@ def __init__(self, *, name=None, attr_name='', parent=None, labels=None,
                  kind=None):
 
         if OPHYD_DEBUG_WITH_INSPECT:
-            self._stack_init = inspect.stack()
+            stack = inspect.stack()
+            self._stack_init = [f'{s.filename}:{s.lineno}' for s in stack]
 
         if labels is None:
             labels = set()
@@ -229,7 +230,8 @@ def __init_subclass__(cls, version=None, version_of=None,
 
         if OPHYD_DEBUG_WITH_INSPECT:
             print(f'Subclassing {cls.__name__}...')
-            cls._stack_subclass = inspect.stack()
+            stack = inspect.stack()
+            cls._stack_subclass = [f'{s.filename}:{s.lineno}' for s in stack]
 
         super().__init_subclass__(**kwargs)