From 4b33d0f395538f1445df2f69fe5dfccfa92d1ee2 Mon Sep 17 00:00:00 2001
From: Min RK <benjaminrk@gmail.com>
Date: Thu, 28 Nov 2024 13:35:09 +0100
Subject: [PATCH] call close_handlers before garbage collection

avoids bug when this is called by `Application.__del__`
---
 repo2docker/__main__.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/repo2docker/__main__.py b/repo2docker/__main__.py
index a61ef918a..fb4e78460 100644
--- a/repo2docker/__main__.py
+++ b/repo2docker/__main__.py
@@ -482,6 +482,15 @@ def main():
         if r2d.log_level == logging.DEBUG:
             r2d.log.exception(e)
         sys.exit(1)
+    finally:
+        # workaround bug in traitlets Application.__del__:
+        # https://github.com/ipython/traitlets/pull/912
+        # make sure close_handlers is called before process teardown
+        try:
+            r2d.close_handlers()
+        except AttributeError:
+            # traitlets < 5.10
+            pass
 
 
 if __name__ == "__main__":