fix: pytest error

cellacdc/__init__.py

@@ -18,11 +18,14 @@
     # Load default light mode
     shutil.copyfile(qrc_resources_light_path, qrc_resources_path)
 
-with open(qrc_resources_path, 'r') as qrc_py:
-    text = qrc_py.read()
-    text = text.replace('from PyQt5', 'from qtpy')
-with open(qrc_resources_path, 'w') as qrc_py:
-    qrc_py.write(text)
+try:
+    with open(qrc_resources_path, 'r') as qrc_py:
+        text = qrc_py.read()
+        text = text.replace('from PyQt5', 'from qtpy')
+    with open(qrc_resources_path, 'w') as qrc_py:
+        qrc_py.write(text)
+except Exception as err:
+    raise err
 
 try:
     import qtpy

cellacdc/gui.py

@@ -8947,7 +8947,12 @@ def addDelROI(self, event):
             self.fixCcaDfAfterEdit('Delete IDs using ROI')
             self.updateAllImages()
         else:
-            self.warnEditingWithCca_df('Delete IDs using ROI')
+            cancelled_str = self.warnEditingWithCca_df(
+                'Delete IDs using ROI', get_cancelled=True
+            )
+            if cancelled_str == 'cancelled':
+                self.roi_to_del = roi
+                self.removeDelROI()
 
     def replacePolyLineRoiWithLineRoi(self, roi):
         roi = self.polyLineRoi
@@ -18050,7 +18055,10 @@ def fixCcaDfAfterEdit(self, editTxt):
             self.update_cca_df_snapshots(editTxt, posData)
             self.store_data()
 
-    def warnEditingWithCca_df(self, editTxt, return_answer=False, get_answer=False):
+    def warnEditingWithCca_df(
+            self, editTxt, return_answer=False, get_answer=False, 
+            get_cancelled=False
+        ):
         # Function used to warn that the user is editing in "Segmentation and
         # Tracking" mode a frame that contains cca annotations.
         # Ask whether to remove annotations from all future frames 
@@ -18099,6 +18107,8 @@ def warnEditingWithCca_df(self, editTxt, return_answer=False, get_answer=False):
             ), widgets=checkBox
             )
         if msg.cancel:
+            if get_cancelled:
+                return 'cancelled'
             removeAnnotations = False
             return removeAnnotations