diff --git a/.flake8 b/.flake8
index 93ed48e30a6..4cd48f1c011 100644
--- a/.flake8
+++ b/.flake8
@@ -25,9 +25,6 @@ per-file-ignores =
     doc/python/m.distance.py: E501
     doc/gui/wxpython/example/dialogs.py: F401
     gui/scripts/d.wms.py: E501
-    gui/wxpython/dbmgr/base.py: E722
-    gui/wxpython/dbmgr/sqlbuilder.py: E722
-    gui/wxpython/dbmgr/manager.py: E722
     gui/wxpython/docs/wxgui_sphinx/conf.py: E402, W291
     gui/wxpython/gcp/manager.py: E722
     gui/wxpython/gui_core/*: E266, E722
diff --git a/gui/wxpython/dbmgr/base.py b/gui/wxpython/dbmgr/base.py
index 66321fcafda..d7ea818da4c 100644
--- a/gui/wxpython/dbmgr/base.py
+++ b/gui/wxpython/dbmgr/base.py
@@ -208,7 +208,7 @@ def LoadData(self, layer, columns=None, where=None, sql=None):
         try:
             # for maps connected via v.external
             keyId = columns.index(keyColumn)
-        except:
+        except ValueError:
             keyId = -1
 
         # read data
@@ -961,7 +961,7 @@ def OnLayerPageChanged(self, event):
                     self.layerPage[self.selLayer]["data"]
                 ).GetItemCount()
             )
-        except:
+        except Exception:
             pass
 
         if idCol:
@@ -1640,7 +1640,7 @@ def OnDataItemAdd(self, event):
         if dlg.ShowModal() == wx.ID_OK:
             try:  # get category number
                 cat = int(dlg.GetValues(columns=[keyColumn])[0])
-            except:
+            except ValueError:
                 cat = -1
 
             try:
@@ -1672,7 +1672,7 @@ def OnDataItemAdd(self, event):
                             values[i] = int(float(values[i]))
                         elif tlist.columns[columnName[i]]["ctype"] == float:
                             values[i] = float(values[i])
-                    except:
+                    except ValueError:
                         raise ValueError(
                             _("Value '%(value)s' needs to be entered as %(type)s.")
                             % {
@@ -1680,6 +1680,13 @@ def OnDataItemAdd(self, event):
                                 "type": tlist.columns[columnName[i]]["type"],
                             }
                         )
+                    except KeyError:
+                        raise KeyError(
+                            _("Column '%(column)s' does not exist.")
+                            % {
+                                "column": columnName[i],
+                            }
+                        )
                     columnsString += "%s," % columnName[i]
 
                     if tlist.columns[columnName[i]]["ctype"] == str:
@@ -3809,7 +3816,7 @@ def OnDeleteLayer(self, event):
         """Delete layer"""
         try:
             layer = int(self.deleteLayer.GetValue())
-        except:
+        except ValueError:
             return
 
         RunCommand(
@@ -3856,10 +3863,10 @@ def OnChangeLayer(self, event):
         """Layer number of layer to be deleted is changed"""
         try:
             layer = int(event.GetString())
-        except:
+        except ValueError:
             try:
-                layer = self.mapDBInfo.layers.keys()[0]
-            except:
+                layer = list(self.mapDBInfo.layers.keys())[0]
+            except IndexError:
                 return
 
         if self.GetCurrentPage() == self.modifyPanel:
diff --git a/gui/wxpython/dbmgr/manager.py b/gui/wxpython/dbmgr/manager.py
index c866bd55650..b1cbd93ab71 100644
--- a/gui/wxpython/dbmgr/manager.py
+++ b/gui/wxpython/dbmgr/manager.py
@@ -70,7 +70,7 @@ def __init__(
         self.parent = parent
         try:
             mapdisplay = self.parent.GetMapDisplay()
-        except:
+        except AttributeError:
             mapdisplay = None
 
         DbMgrBase.__init__(
diff --git a/gui/wxpython/dbmgr/sqlbuilder.py b/gui/wxpython/dbmgr/sqlbuilder.py
index 36827698efc..5e6fe0e7706 100644
--- a/gui/wxpython/dbmgr/sqlbuilder.py
+++ b/gui/wxpython/dbmgr/sqlbuilder.py
@@ -359,7 +359,7 @@ def OnUniqueValues(self, event, justsample=False):
         try:
             idx = self.list_columns.GetSelections()[0]
             column = self.list_columns.GetString(idx)
-        except:
+        except IndexError:
             self.list_values.Clear()
             return