diff --git a/jedi/evaluate/stdlib.py b/jedi/evaluate/stdlib.py
index e40fcf6b..c1798a01 100644
--- a/jedi/evaluate/stdlib.py
+++ b/jedi/evaluate/stdlib.py
@@ -22,11 +22,17 @@ def execute(evaluator, obj, params):
         pass
     else:
         if obj.parent == compiled.builtin:
-            # for now we just support builtin functions.
-            try:
-                return _implemented['builtins'][obj_name](evaluator, obj, params)
-            except KeyError:
-                pass
+            module_name = 'builtins'
+        elif isinstance(obj.parent, pr.Module):
+            module_name = str(obj.parent.name)
+        else:
+            module_name = ''
+
+        # for now we just support builtin functions.
+        try:
+            return _implemented[module_name][obj_name](evaluator, obj, params)
+        except KeyError:
+            pass
     raise NotInStdLib()
 
 
@@ -101,11 +107,21 @@ def builtins_reversed(evaluator, obj, params):
     return [er.Instance(evaluator, obj, objects)]
 
 
+def _return_first_param(evaluator, obj, params):
+    if len(params) == 1:
+        return _follow_param(evaluator, params, 0)
+    return []
+
+
 _implemented = {
     'builtins': {
         'getattr': builtins_getattr,
         'type': builtins_type,
         'super': builtins_super,
         'reversed': builtins_reversed,
-    }
+    },
+    'copy': {
+        'copy': _return_first_param,
+        'deepcopy': _return_first_param,
+    },
 }
diff --git a/test/completion/stdlib.py b/test/completion/stdlib.py
index 40c798f0..e09ea268 100644
--- a/test/completion/stdlib.py
+++ b/test/completion/stdlib.py
@@ -127,3 +127,16 @@ import hashlib
 
 #? ['md5']
 hashlib.md5
+
+# -----------------
+# copy
+# -----------------
+
+import copy
+a = copy.deepcopy(1)
+#? int()
+a
+
+a = copy.copy()
+#? 
+a