Fix Python 3.7+ "import as" but keep "import from" working

test/simple_source/bug35/04_importlist.py

@@ -1,7 +1,14 @@
+# From 3.7 test_cmath.py
 # Had bug in 3.x in not having semantic importlist rule
-def main(osp, Mfile, mainpyfile, dbg=None):
-    try:
-        from xdis import load_module, PYTHON_VERSION, IS_PYPY
-        return PYTHON_VERSION, IS_PYPY, load_module
-    except:
-        pass
+# bug is treating "import as" as "from xx import" while
+# still being able to hand "from xx import" properly
+
+# RUNNABLE!
+import os.path as osp
+from sys import path
+from os import sep, name
+
+assert osp.basename("a")
+assert path
+assert sep
+assert name