Avoid useless warning in theano.function()

If the dictionary has <= 1 element in it, then we do not care if it's unsorted.

Avoid useless warning in theano.function()
86343762 · Olivier Delalleau · 02f48c14 · 86343762
--- a/theano/compile/function.py
+++ b/theano/compile/function.py
@@ -164,8 +164,9 @@ def function(inputs, outputs=None, mode=None, updates=None, givens=None,
    if updates is None:
        updates = []

-    if isinstance(updates, dict) and \
-            not isinstance(updates, gof.python25.OrderedDict):
+    if (isinstance(updates, dict) and
+            not isinstance(updates, gof.python25.OrderedDict) and
+            len(updates) > 1):
        warnings.warn(
            "The parameter 'updates' of theano.function()"
            " expects an OrderedDict,"