Improve comments in test_idle.py. (GH-7057)
(cherry picked from commit 2a6d5da1d35b4a5342f6347d75298e2bec8194ed)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
diff --git a/Lib/test/test_idle.py b/Lib/test/test_idle.py
index 31fffd9..8bc01de 100644
--- a/Lib/test/test_idle.py
+++ b/Lib/test/test_idle.py
@@ -1,18 +1,20 @@
import unittest
from test.support import import_module
-# Skip test if _tkinter wasn't built, if idlelib is missing,
-# or if tcl/tk is not the 8.5+ needed for ttk widgets.
-tk = import_module('tkinter') # imports _tkinter
+# Skip test_idle if _tkinter wasn't built, if tkinter is missing,
+# if tcl/tk is not the 8.5+ needed for ttk widgets,
+# or if idlelib is missing (not installed).
+tk = import_module('tkinter') # Also imports _tkinter.
if tk.TkVersion < 8.5:
raise unittest.SkipTest("IDLE requires tk 8.5 or later.")
idlelib = import_module('idlelib')
-# Before test imports, tell IDLE to avoid changing the environment.
+# Before importing and executing more of idlelib,
+# tell IDLE to avoid changing the environment.
idlelib.testing = True
-# unittest.main and test.libregrtest.runtest.runtest_inner
-# call load_tests, when present, to discover tests to run.
+# Unittest.main and test.libregrtest.runtest.runtest_inner
+# call load_tests, when present here, to discover tests to run.
from idlelib.idle_test import load_tests
if __name__ == '__main__':