From 877e38551eca7b8d88155b4ae97dd1237c99b0d0 Mon Sep 17 00:00:00 2001
From: Ruslan Kuprieiev <kupruser@gmail.com>
Date: Tue, 29 Oct 2019 20:54:56 +0200
Subject: [PATCH] lock: add a workaround for a flufl.lock bug (#2688)

This bug doesn't affect us during regular dvc CLI commands, but is not
visualy pleasing during API usage.

Fixes #2573
---
 dvc/lock.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/dvc/lock.py b/dvc/lock.py
index 8859ff9e72..d3bc83d199 100644
--- a/dvc/lock.py
+++ b/dvc/lock.py
@@ -87,6 +87,17 @@ def _set_claimfile(self, pid=None):
                     self._tmp_dir, filename + ".lock"
                 )
 
+        # Fix for __del__ bug in flufl.lock [1] which is causing errors on
+        # Python shutdown [2].
+        # [1] https://gitlab.com/warsaw/flufl.lock/issues/7
+        # [2] https://github.com/iterative/dvc/issues/2573
+        def __del__(self):
+            try:
+                if self._owned:
+                    self.finalize()
+            except ImportError:
+                pass
+
 
 else:
     import zc.lockfile