From: 180909 <734461790@qq.com>
Date: Tue, 7 Dec 2021 00:10:49 +0000 (+0800)
Subject: bpo-28953: Use `raise from` when raising new IncompleteRead (GH-29861)
X-Git-Tag: v3.11.0a3~32
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c5c365220ed2c867fe81078f70b827de22db2ee6;p=thirdparty%2FPython%2Fcpython.git

bpo-28953: Use `raise from` when raising new IncompleteRead (GH-29861)



Automerge-Triggered-By: GH:asvetlov
---

diff --git a/Lib/http/client.py b/Lib/http/client.py
index a6ab135b2c38..f54172fd0dee 100644
--- a/Lib/http/client.py
+++ b/Lib/http/client.py
@@ -593,8 +593,8 @@ class HTTPResponse(io.BufferedIOBase):
                     amt -= chunk_left
                 self.chunk_left = 0
             return b''.join(value)
-        except IncompleteRead:
-            raise IncompleteRead(b''.join(value))
+        except IncompleteRead as exc:
+            raise IncompleteRead(b''.join(value)) from exc
 
     def _readinto_chunked(self, b):
         assert self.chunked != _UNKNOWN