adapt exc_info handling for python 3

1 files changed, 8 insertions, 1 deletions

diff --git a/wsgitools/scgi/asynchronous.py b/wsgitools/scgi/asynchronous.py
index 82dec02..75f1ff0 100644
--- a/wsgitools/scgi/asynchronous.py
+++ b/wsgitools/scgi/asynchronous.py
@@ -11,6 +11,13 @@ except ImportError:
     import StringIO as io
 import errno
 
+if sys.version_info[0] >= 3:
+    def exc_info_for_raise(exc_info):
+        return exc_info[0](exc_info[1]).with_traceback(exc_info[2])
+else:
+    def exc_info_for_raise(exc_info):
+        return exc_info[0], exc_info[1], exc_info[2]
+
 class SCGIConnection(asyncore.dispatcher):
     """SCGI connection class used by L{SCGIServer}."""
     # connection states
@@ -143,7 +150,7 @@ class SCGIConnection(asyncore.dispatcher):
         if exc_info:
             if self.outheaders == True:
                 try:
-                    raise exc_info[0], exc_info[1], exc_info[2]
+                    raise exc_info_for_raise(exc_info)
                 finally:
                     exc_info = None
         assert self.outheaders != True # unsent