wip: all tests pass

Author: dhalbert

tests/basics/struct_micropython.py

@@ -3,4 +3,5 @@
 # check that level 3 doesn't store line numbers
 # the expected output is that any line is printed as "line 1"
 micropython.opt_level(3)
-exec("try:\n xyz\nexcept NameError as er:\n import sys\n sys.print_exception(er)")
+# CIRCUITPY-CHANGE: use traceback.print_exception() instead of sys.print_exception()
+exec("try:\n xyz\nexcept NameError as er:\n import traceback\n traceback.print_exception(er)")