minor fixes

src/gui_qt/data/signaledit/editsignalwidget.py

@@ -1,3 +1,4 @@
+from nmreval.lib.logger import logger
 from nmreval.math import apodization
 from nmreval.lib.importer import find_models
 from nmreval.utils.text import convert
@@ -67,7 +68,7 @@ class EditSignalWidget(QtWidgets.QWidget, Ui_Form):
                 self.do_something.emit(sender, (ph0, ph1, pvt))
 
         else:
-            print('You should never reach this by accident.')
+            logger.warning(f'You should never reach this by accident, invalid sender {sender!r}')
 
     @QtCore.pyqtSlot(int, name='on_apodcombobox_currentIndexChanged')
     def change_apodization(self, index):