lesson_check.py: add a comment about importing * from a package

Co-authored-by: Zhian N. Kamvar <[email protected]>

Author: maxim-belkin

bin/lesson_check.py

@@ -8,6 +8,8 @@
 import re
 from argparse import ArgumentParser
 
+# This uses the `__all__` list in `util.py` to determine what objects to import 
+# see https://docs.python.org/3/tutorial/modules.html#importing-from-a-package
 from util import *
 from reporter import Reporter