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[3.6] Improve comments in test_idle.py. (GH-7057) #7060

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16 changes: 10 additions & 6 deletions Lib/test/test_idle.py
Original file line number Diff line number Diff line change
@@ -1,19 +1,23 @@
import unittest
from test.support import import_module

# Skip test if _thread or _tkinter wasn't built, if idlelib is missing,
# or if tcl/tk is not the 8.5+ needed for ttk widgets.
import_module('threading') # imported by PyShell, imports _thread
# For 3.6, skip test_idle if threads are not supported.
import_module('threading') # Imported by PyShell, imports _thread.

# 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') # 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__':
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