Move 2.7 to 2 (#635)

Closes #579.

stdlib/2/runpy.pyi

@@ -0,0 +1,21 @@
+# Stubs for runpy (Python 2)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any
+
+class _TempModule:
+    mod_name = ... # type: Any
+    module = ... # type: Any
+    def __init__(self, mod_name): ...
+    def __enter__(self): ...
+    def __exit__(self, *args): ...
+
+class _ModifiedArgv0:
+    value = ... # type: Any
+    def __init__(self, value): ...
+    def __enter__(self): ...
+    def __exit__(self, *args): ...
+
+def run_module(mod_name, init_globals=None, run_name=None, alter_sys=False): ...
+def run_path(path_name, init_globals=None, run_name=None): ...