[Python-checkins] bpo-46332: use raise..from instead of assigning __cause__ and raising (GH-30517)

[iritkatriel]

https://github.com/python/cpython/commit/0d639678d33a0f085851a07259b8fe2782943118
commit: 0d639678d33a0f085851a07259b8fe2782943118
branch: main
author: Irit Katriel <1055913+iritkatriel at users.noreply.github.com>
committer: iritkatriel <1055913+iritkatriel at users.noreply.github.com>
date: 2022-01-10T18:59:21Z
summary:

bpo-46332: use raise..from instead of assigning __cause__ and raising (GH-30517)

files:
M Lib/logging/config.py

diff --git a/Lib/logging/config.py b/Lib/logging/config.py
index 3bc63b78621ab..9bc07eddd76b4 100644
--- a/Lib/logging/config.py
+++ b/Lib/logging/config.py
@@ -30,7 +30,6 @@
 import logging.handlers
 import re
 import struct
-import sys
 import threading
 import traceback
 
@@ -392,11 +391,9 @@ def resolve(self, s):
                     self.importer(used)
                     found = getattr(found, frag)
             return found
-        except ImportError:
-            e, tb = sys.exc_info()[1:]
+        except ImportError as e:
             v = ValueError('Cannot resolve %r: %s' % (s, e))
-            v.__cause__, v.__traceback__ = e, tb
-            raise v
+            raise v from e
 
     def ext_convert(self, value):
         """Default converter for the ext:// protocol."""