From 0f2f89e1dc94bf13396fb0c77fc6fabbb5bfd6b9 Mon Sep 17 00:00:00 2001
From: Xiang Yan <xiangsjtu@gmail.com>
Date: Tue, 10 Oct 2023 08:46:52 -0700
Subject: [PATCH] Revert "enter session only when it is not none. (#32359)"
 (#32391)

This reverts commit b8dec12bcf9723a40845db0bc5984fa266bee82f.
---
 sdk/core/azure-core/CHANGELOG.md                              | 2 --
 sdk/core/azure-core/azure/core/pipeline/transport/_aiohttp.py | 3 +--
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/sdk/core/azure-core/CHANGELOG.md b/sdk/core/azure-core/CHANGELOG.md
index 100dcc7d2f13..3da8217bdc40 100644
--- a/sdk/core/azure-core/CHANGELOG.md
+++ b/sdk/core/azure-core/CHANGELOG.md
@@ -8,8 +8,6 @@
 
 ### Bugs Fixed
 
-- Added check that enter aiohttp session only when it is not None.
-
 ### Other Changes
 
 ## 1.29.4 (2023-09-07)
diff --git a/sdk/core/azure-core/azure/core/pipeline/transport/_aiohttp.py b/sdk/core/azure-core/azure/core/pipeline/transport/_aiohttp.py
index fad9905132e2..9c525533211a 100644
--- a/sdk/core/azure-core/azure/core/pipeline/transport/_aiohttp.py
+++ b/sdk/core/azure-core/azure/core/pipeline/transport/_aiohttp.py
@@ -124,8 +124,7 @@ async def open(self):
             self.session = aiohttp.ClientSession(**clientsession_kwargs)
         # pyright has trouble to understand that self.session is not None, since we raised at worst in the init
         self.session = cast(aiohttp.ClientSession, self.session)
-        if self.session is not None:
-            await self.session.__aenter__()
+        await self.session.__aenter__()
 
     async def close(self):
         """Closes the connection."""