From eab360a02b13b0dcc659546ddde383cc5a5b88bb Mon Sep 17 00:00:00 2001
From: Maximilian Hils <git@maximilianhils.com>
Date: Wed, 28 Dec 2016 14:21:19 +0100
Subject: fix IO type checking

---
 mitmproxy/utils/typecheck.py | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'mitmproxy/utils')

diff --git a/mitmproxy/utils/typecheck.py b/mitmproxy/utils/typecheck.py
index 20af0150..ae1a507d 100644
--- a/mitmproxy/utils/typecheck.py
+++ b/mitmproxy/utils/typecheck.py
@@ -65,6 +65,8 @@ def check_type(attr_name: str, value: typing.Any, typeinfo: type) -> None:
     elif typename.startswith("typing.IO"):
         if hasattr(value, "read"):
             return
+        else:
+            raise e
     elif not isinstance(value, typeinfo):
         raise e
 
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