added assertions for not getting unicode strings

1 files changed, 2 insertions, 0 deletions

diff --git a/wsgitools/scgi/forkpool.py b/wsgitools/scgi/forkpool.py
index 157e320..4a07740 100644
--- a/wsgitools/scgi/forkpool.py
+++ b/wsgitools/scgi/forkpool.py
@@ -58,6 +58,7 @@ class SocketFileWrapper:
         pass
     def write(self, data):
         """see pep333"""
+        assert isinstance(data, str)
         self.sock.send(data)
     def writelines(self, lines):
         """see pep333"""
@@ -229,6 +230,7 @@ class SCGIServer:
         assert hasattr(result, "__iter__")
 
         for data in result:
+            assert isinstance(data, str)
             con.send(data)
         if hasattr(result, "close"):
             result.close()