diff --git a/pyzebra/app/panel_hdf_anatric.py b/pyzebra/app/panel_hdf_anatric.py
index 716a3e2..930381c 100644
--- a/pyzebra/app/panel_hdf_anatric.py
+++ b/pyzebra/app/panel_hdf_anatric.py
@@ -6,17 +6,7 @@ import tempfile
 
 from bokeh.io import curdoc
 from bokeh.layouts import column, row
-from bokeh.models import (
-    Button,
-    Div,
-    FileInput,
-    Select,
-    Spacer,
-    TabPanel,
-    Tabs,
-    TextAreaInput,
-    TextInput,
-)
+from bokeh.models import Button, Div, FileInput, Select, TabPanel, Tabs, TextAreaInput, TextInput
 
 import pyzebra
 from pyzebra import DATA_FACTORY_IMPLEMENTATION, REFLECTION_PRINTER_FORMATS
diff --git a/pyzebra/app/panel_hdf_viewer.py b/pyzebra/app/panel_hdf_viewer.py
index cc49b36..362f04e 100644
--- a/pyzebra/app/panel_hdf_viewer.py
+++ b/pyzebra/app/panel_hdf_viewer.py
@@ -106,7 +106,6 @@ def create():
         nonlocal dataset
         new_data = []
         for f_path in file_select.value:
-            f_name = os.path.basename(f_path)
             try:
                 file_data = [pyzebra.read_detector_data(f_path)]
             except Exception as e:
@@ -130,7 +129,6 @@ def create():
     def file_append_button_callback():
         file_data = []
         for f_path in file_select.value:
-            f_name = os.path.basename(f_path)
             try:
                 file_data = [pyzebra.read_detector_data(f_path)]
             except Exception as e: