From fff7d3bff6c52e61b1c152e23ad8283b0e1c1c94 Mon Sep 17 00:00:00 2001
From: jinser <46820840+jinserrr@users.noreply.github.com>
Date: Mon, 23 Aug 2021 00:12:47 +0800
Subject: [PATCH] =?UTF-8?q?:bug:=20BytesIO=20cursor=20=E5=8F=AF=E8=83=BD?=
 =?UTF-8?q?=E4=B8=8D=E5=9C=A8=E5=BC=80=E5=A4=B4?=
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---
 .../nonebot-adapter-cqhttp/nonebot/adapters/cqhttp/message.py   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/nonebot-adapter-cqhttp/nonebot/adapters/cqhttp/message.py b/packages/nonebot-adapter-cqhttp/nonebot/adapters/cqhttp/message.py
index 79b016bd..42cbc8ac 100644
--- a/packages/nonebot-adapter-cqhttp/nonebot/adapters/cqhttp/message.py
+++ b/packages/nonebot-adapter-cqhttp/nonebot/adapters/cqhttp/message.py
@@ -89,7 +89,7 @@ class MessageSegment(BaseMessageSegment["Message"]):
               proxy: bool = True,
               timeout: Optional[int] = None) -> "MessageSegment":
         if isinstance(file, BytesIO):
-            file = file.read()
+            file = file.getvalue()
         if isinstance(file, bytes):
             file = f"base64://{b64encode(file).decode()}"
         elif isinstance(file, Path):