diff --git a/test/test_main.py b/test/test_main.py
index beadccfe5991936ceba67b155d69db315ddf1414..dd5ccf00eb0219cca4323fd6509f77784c80b970 100644
--- a/test/test_main.py
+++ b/test/test_main.py
@@ -61,7 +61,11 @@ class TestMain(unittest.TestCase):
         def change_text_and_ok():
             while self.widget.dlg_input is None:
                 app.processEvents()
-            child_line_edit = self.widget.dlg_input.findChild(QtWidgets.QLineEdit)
+
+            child_line_edit = self.widget.dlg_input.findChild(
+                QtWidgets.QLineEdit
+            )
+
             QtTest.QTest.keyClicks(child_line_edit, self.test_text2)
             QtTest.QTest.keyClick(child_line_edit, QtCore.Qt.Key_Enter)