Fix tests requiring tkinter

Author: loic-simon

Lib/test/test_pyrepl/test_pyrepl.py

@@ -59,6 +59,10 @@
     import readline as readline_module
 except ImportError:
     readline_module = None
+try:
+    import tkinter
+except ImportError:
+    tkinter = None
 
 
 class ReplTestCase(TestCase):
@@ -1644,7 +1648,8 @@ def test_no_side_effects(self):
                 with (captured_stdout() as out,
                       captured_stderr() as err,
                       self._capture_audit_events() as audit_events,
-                      patch("tkinter._tkinter.create") as tk_mock,
+                      (patch("tkinter._tkinter.create") if tkinter
+                       else contextlib.nullcontext()) as tk_mock,
                       warnings.catch_warnings(action="ignore"),
                       patch.dict(sys.modules)):
                     completer._maybe_import_module(modname)
@@ -1655,7 +1660,8 @@ def test_no_side_effects(self):
                 # 2. spawn any subprocess (eg. webbrowser.open)
                 self.assertNotIn("subprocess.Popen", audit_events)
                 # 3. launch a Tk window
-                tk_mock.assert_not_called()
+                if tk_mock is not None:
+                    tk_mock.assert_not_called()
 
 
 class TestHardcodedSubmodules(TestCase):