Remove unused imports and fix a bare except statement

glances/folder_list.py

@@ -21,12 +21,11 @@
 
 import os
 
-from glances.compat import range, u
+from glances.compat import range
 from glances.logger import logger
 
 # Use the built-in version of scandir/walk if possible, otherwise
 # use the scandir module version
-
 scandir_tag = True
 try:
     # For Python 3.5 or higher
@@ -35,7 +34,7 @@ except ImportError:
     # For others...
     try:
         from scandir import scandir
-    except Exception as e:
+    except ImportError:
         scandir_tag = False
 
 

glances/plugins/glances_folders.py

@@ -19,10 +19,8 @@
 
 """Folder plugin."""
 
-from glances.compat import u
 from glances.folder_list import FolderList as glancesFolderList
 from glances.plugins.glances_plugin import GlancesPlugin
-from glances.logger import logger
 
 
 class Plugin(GlancesPlugin):
@@ -116,7 +114,7 @@ class Plugin(GlancesPlugin):
             ret.append(self.curse_add_line(msg))
             try:
                 msg = '{0:>6}'.format(self.auto_unit(i['size']))
-            except:
+            except TypeError:
                 msg = '{0:>6}'.format('?')
             ret.append(self.curse_add_line(msg, self.get_alert(i)))