diff --git a/rpyc/core/stream.py b/rpyc/core/stream.py
index 859faafb..fb8baaa4 100644
--- a/rpyc/core/stream.py
+++ b/rpyc/core/stream.py
@@ -326,7 +326,10 @@ def from_std(cls):
 
         :returns: a :class:`PipeStream` instance
         """
-        return cls(sys.stdin, sys.stdout)
+        pipestream = cls(sys.stdin, sys.stdout)
+        sys.stdin = os.open(os.devnull, os.O_RDWR)
+        sys.stdout = sys.stdin
+        return pipestream
 
     @classmethod
     def create_pair(cls):
@@ -405,7 +408,10 @@ def __init__(self, incoming, outgoing):
 
     @classmethod
     def from_std(cls):
-        return cls(sys.stdin, sys.stdout)
+        pipestream = cls(sys.stdin, sys.stdout)
+        sys.stdin = os.open(os.devnull, os.O_RDWR)
+        sys.stdout = sys.stdin
+        return pipestream
 
     @classmethod
     def create_pair(cls):
diff --git a/rpyc/lib/colls.py b/rpyc/lib/colls.py
index 5cae9a06..e3b2be98 100644
--- a/rpyc/lib/colls.py
+++ b/rpyc/lib/colls.py
@@ -37,7 +37,6 @@ def __getitem__(self, key):
         obj = self._dict[key]()
         if obj is None:
             raise KeyError(key)
-        self[key] = obj
         return obj
 
     def __setitem__(self, key, value):