diff --git a/fah/util/EntryValidator.py b/fah/util/EntryValidator.py
index acf9c78..d29f3ff 100644
--- a/fah/util/EntryValidator.py
+++ b/fah/util/EntryValidator.py
@@ -1,29 +1,30 @@
-################################################################################
-#                                                                              #
-#                    Folding@Home Client Control (FAHControl)                  #
-#                   Copyright (C) 2016-2020 foldingathome.org                  #
-#                  Copyright (C) 2010-2016 Stanford University                 #
-#                                                                              #
-#      This program is free software: you can redistribute it and/or modify    #
-#      it under the terms of the GNU General Public License as published by    #
-#       the Free Software Foundation, either version 3 of the License, or      #
-#                      (at your option) any later version.                     #
-#                                                                              #
-#        This program is distributed in the hope that it will be useful,       #
-#         but WITHOUT ANY WARRANTY; without even the implied warranty of       #
-#         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        #
-#                  GNU General Public License for more details.                #
-#                                                                              #
-#       You should have received a copy of the GNU General Public License      #
-#     along with this program.  If not, see <http://www.gnu.org/licenses/>.    #
-#                                                                              #
-################################################################################
+###############################################################################
+#                                                                             #
+#                    Folding@Home Client Control (FAHControl)                 #
+#                   Copyright (C) 2016-2020 foldingathome.org                 #
+#                  Copyright (C) 2010-2016 Stanford University                #
+#                                                                             #
+#      This program is free software: you can redistribute it and/or modify   #
+#      it under the terms of the GNU General Public License as published by   #
+#       the Free Software Foundation, either version 3 of the License, or     #
+#                      (at your option) any later version.                    #
+#                                                                             #
+#        This program is distributed in the hope that it will be useful,      #
+#         but WITHOUT ANY WARRANTY; without even the implied warranty of      #
+#         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the       #
+#                  GNU General Public License for more details.               #
+#                                                                             #
+#       You should have received a copy of the GNU General Public License     #
+#     along with this program.  If not, see <http://www.gnu.org/licenses/>.   #
+#                                                                             #
+###############################################################################
 
-import gtk
+from gi.repository import Gtk
 import re
 
+
 class EntryValidator:
-    def __init__(self, app, entry, pattern, description = ''):
+    def __init__(self, app, entry, pattern, description=''):
         self.app = app
         self.entry = entry
         self.re = re.compile(pattern)
@@ -33,21 +34,19 @@ class EntryValidator:
         entry.connect('focus-in-event', self.on_focus_in_event)
         entry.connect('focus-out-event', self.on_focus_out_event)
 
-
     def is_valid(self):
         return self.re.match(self.entry.get_text()) is not None
 
-
-    def on_focus_in_event(self, widget, event, data = None):
+    def on_focus_in_event(self, widget, event, data=None):
         self.text = self.entry.get_text()
-        return False # let the signal propagate
+        return False  # let the signal propagate
 
-
-    def on_focus_out_event(self, widget, event, data = None):
+    def on_focus_out_event(self, widget, event, data=None):
         if not self.is_valid():
             self.app.error('Invalid value\n%s' % self.description)
             self.entry.set_text(self.text)
 
-        else: self.text = self.entry.get_text()
+        else:
+            self.text = self.entry.get_text()
 
-        return False # let the signal propagate
+        return False  # let the signal propagate
diff --git a/fah/util/__init__.py b/fah/util/__init__.py
index 8623b23..723b66d 100644
--- a/fah/util/__init__.py
+++ b/fah/util/__init__.py
@@ -1,23 +1,23 @@
-################################################################################
-#                                                                              #
-#                    Folding@Home Client Control (FAHControl)                  #
-#                   Copyright (C) 2016-2020 foldingathome.org                  #
-#                  Copyright (C) 2010-2016 Stanford University                 #
-#                                                                              #
-#      This program is free software: you can redistribute it and/or modify    #
-#      it under the terms of the GNU General Public License as published by    #
-#       the Free Software Foundation, either version 3 of the License, or      #
-#                      (at your option) any later version.                     #
-#                                                                              #
-#        This program is distributed in the hope that it will be useful,       #
-#         but WITHOUT ANY WARRANTY; without even the implied warranty of       #
-#         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        #
-#                  GNU General Public License for more details.                #
-#                                                                              #
-#       You should have received a copy of the GNU General Public License      #
-#     along with this program.  If not, see <http://www.gnu.org/licenses/>.    #
-#                                                                              #
-################################################################################
+###############################################################################
+#                                                                             #
+#                    Folding@Home Client Control (FAHControl)                 #
+#                   Copyright (C) 2016-2020 foldingathome.org                 #
+#                  Copyright (C) 2010-2016 Stanford University                #
+#                                                                             #
+#      This program is free software: you can redistribute it and/or modify   #
+#      it under the terms of the GNU General Public License as published by   #
+#       the Free Software Foundation, either version 3 of the License, or     #
+#                      (at your option) any later version.                    #
+#                                                                             #
+#        This program is distributed in the hope that it will be useful,      #
+#         but WITHOUT ANY WARRANTY; without even the implied warranty of      #
+#         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the       #
+#                  GNU General Public License for more details.               #
+#                                                                             #
+#       You should have received a copy of the GNU General Public License     #
+#     along with this program.  If not, see <http://www.gnu.org/licenses/>.   #
+#                                                                             #
+###############################################################################
 
 
 # fah.util
@@ -28,7 +28,7 @@ import gtk
 if sys.platform == 'darwin':
     try:
         from gtk_osxapplication import *
-    except:
+    except ImportError:
         from gtkosx_application import gtkosx_application_get_resource_path \
             as quartz_application_get_resource_path
 
@@ -40,7 +40,8 @@ from .PYONDecoder import *
 
 
 def parse_bool(x):
-    if isinstance(x, bool): return x
+    if isinstance(x, bool):
+        return x
     return x.lower() in ['true', 't', '1', 'yes', 'y']
 
 
@@ -65,13 +66,16 @@ def status_to_color(status):
         return '#1ef0bc'
     elif status == 'DUMP':
         return '#d2c272'
-    else: return None
+    else:
+        return None
 
 
-def get_span_markup(text, bg = None, fg = 'black'):
+def get_span_markup(text, bg=None, fg='black'):
     markup = '<span'
-    if bg is not None: markup += ' background="%s"' % bg
-    if fg is not None: markup += ' foreground="%s"' % fg
+    if bg is not None:
+        markup += ' background="%s"' % bg
+    if fg is not None:
+        markup += ' foreground="%s"' % fg
     markup += '>%s</span>' % text
     return markup
 
@@ -81,18 +85,22 @@ def iterate_container(widget):
 
     if isinstance(widget, gtk.Container):
         for child in widget.get_children():
-            for x in iterate_container(child): yield x
+            for x in iterate_container(child):
+                yield x
 
 
 def make_row(cols, keys):
     for col in cols:
-        if col in keys: yield keys[col]
-        else: yield ''
+        if col in keys:
+            yield keys[col]
+        else:
+            yield ''
 
 
 def get_combo_items(widget):
     items = []
-    def iterate_list(model, path, iter, data = None):
+
+    def iterate_list(model, path, iter, data=None):
         items.append(model.get_value(iter, 0))
 
     widget.get_model().foreach(iterate_list, None)
@@ -106,19 +114,24 @@ def get_widget_str_value(widget):
 
         # Clean up float formatting
         value = '%.2f' % widget.get_value()
-        if value.endswith('.00'): value = value[0:-3]
-        elif value.endswith('.0'): value = value[0:-2]
+        if value.endswith('.00'):
+            value = value[0:-3]
+        elif value.endswith('.0'):
+            value = value[0:-2]
         return value
 
-    elif isinstance(widget, gtk.Entry): return widget.get_text()
+    elif isinstance(widget, gtk.Entry):
+        return widget.get_text()
 
     elif isinstance(widget, gtk.RadioButton):
         # TODO interpret as a number? or name?
         pass
 
     elif isinstance(widget, gtk.ToggleButton):
-        if widget.get_active(): return 'true'
-        else: return 'false'
+        if widget.get_active():
+            return 'true'
+        else:
+            return 'false'
 
     elif isinstance(widget, gtk.ComboBox):
         # NOTE This does not always get the displayed text
@@ -129,20 +142,26 @@ def get_widget_str_value(widget):
 
 
 def set_widget_str_value(widget, value):
-    if value is None: value = ''
+    if value is None:
+        value = ''
     value = str(value)
 
     if isinstance(widget, (gtk.SpinButton, gtk.Range)):
         # Must come before gtk.Entry for gtk.SpinButton
-        if value == '': value = 0
+        if value == '':
+            value = 0
         else:
-            try: value = float(value)
-            except: value = 0
+            try:
+                value = float(value)
+            except:
+                value = 0
         widget.set_value(value)
 
     elif isinstance(widget, (gtk.Entry, gtk.Label)):
-        if widget.get_text() != value: widget.set_text(value)
-    elif isinstance(widget, gtk.RadioButton): pass # Ignore for now
+        if widget.get_text() != value:
+            widget.set_text(value)
+    elif isinstance(widget, gtk.RadioButton):
+        pass  # Ignore for now
     elif isinstance(widget, gtk.ToggleButton):
         widget.set_active(parse_bool(value))
     elif isinstance(widget, gtk.Button):
@@ -164,10 +183,13 @@ def set_widget_str_value(widget, value):
     elif isinstance(widget, gtk.ProgressBar):
         widget.set_text(value)
 
-        if value == '': value = '0'
+        if value == '':
+            value = '0'
 
-        if value.endswith('%'): fraction = float(value[:-1]) / 100.0
-        else: fraction = float(value)
+        if value.endswith('%'):
+            fraction = float(value[:-1]) / 100.0
+        else:
+            fraction = float(value)
 
         widget.set_fraction(fraction)
 
@@ -196,16 +218,19 @@ def set_widget_change_action(widget, action):
 
 
 def get_home_dir():
-    if sys.platform == 'win32': return '.'
+    if sys.platform == 'win32':
+        return '.'
 
     path = os.path.expanduser("~")
 
     if sys.platform == 'darwin':
         path = os.path.join(path, 'Library/Application Support/FAHClient')
 
-    else: path = os.path.join(path, '.FAHClient')
+    else:
+        path = os.path.join(path, '.FAHClient')
 
-    if not os.path.exists(path): os.makedirs(path)
+    if not os.path.exists(path):
+        os.makedirs(path)
 
     return path