Fix usages of py.io.saferepr

src/_pytest/_code/code.py

@@ -18,6 +18,7 @@ import six
 from six import text_type
 
 import _pytest
+from _pytest._io.saferepr import saferepr
 from _pytest.compat import _PY2
 from _pytest.compat import _PY3
 from _pytest.compat import PY35
@@ -144,7 +145,7 @@ class Frame(object):
     def repr(self, object):
         """ return a 'safe' (non-recursive, one-line) string repr for 'object'
         """
-        return py.io.saferepr(object)
+        return saferepr(object)
 
     def is_true(self, object):
         return object
@@ -423,7 +424,7 @@ class ExceptionInfo(object):
         if exprinfo is None and isinstance(tup[1], AssertionError):
             exprinfo = getattr(tup[1], "msg", None)
             if exprinfo is None:
-                exprinfo = py.io.saferepr(tup[1])
+                exprinfo = saferepr(tup[1])
             if exprinfo and exprinfo.startswith(cls._assert_start_repr):
                 _striptext = "AssertionError: "
 
@@ -620,7 +621,7 @@ class FormattedExcinfo(object):
         return source
 
     def _saferepr(self, obj):
-        return py.io.saferepr(obj)
+        return saferepr(obj)
 
     def repr_args(self, entry):
         if self.funcargs: