diff --git a/jedi/mixin/_io.pym b/jedi/mixin/_io.pym
new file mode 100644
index 00000000..0feec3a2
--- /dev/null
+++ b/jedi/mixin/_io.pym
@@ -0,0 +1,3 @@
+class TextIOWrapper():
+    def __next__(self):
+        return ''