diff --git a/TermTk/TTkCore/TTkTerm/readinputlinux.py b/TermTk/TTkCore/TTkTerm/readinputlinux.py
index e0cc4ebc..1ab2f429 100644
--- a/TermTk/TTkCore/TTkTerm/readinputlinux.py
+++ b/TermTk/TTkCore/TTkTerm/readinputlinux.py
@@ -29,7 +29,6 @@ except Exception as e:
     print(f'ERROR: {e}')
     exit(1)
 
-from TermTk.TTkCore.log import TTkLog
 
 class ReadInput():
     __slots__ = ('_readPipe')
diff --git a/TermTk/TTkWidgets/Fancy/table.py b/TermTk/TTkWidgets/Fancy/table.py
index 0987fa18..ea88d186 100644
--- a/TermTk/TTkWidgets/Fancy/table.py
+++ b/TermTk/TTkWidgets/Fancy/table.py
@@ -22,13 +22,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from TermTk.TTkCore.cfg import TTkCfg
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
-from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
-from TermTk.TTkCore.color import TTkColor
 from TermTk.TTkWidgets.Fancy.tableview import TTkFancyTableView
-from TermTk.TTkLayouts.gridlayout import TTkGridLayout
 from TermTk.TTkAbstract.abstractscrollarea import TTkAbstractScrollArea
 
 class TTkFancyTable(TTkAbstractScrollArea):
diff --git a/TermTk/TTkWidgets/Fancy/tableview.py b/TermTk/TTkWidgets/Fancy/tableview.py
index 16b4fdb7..a4f231a4 100644
--- a/TermTk/TTkWidgets/Fancy/tableview.py
+++ b/TermTk/TTkWidgets/Fancy/tableview.py
@@ -22,9 +22,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from TermTk.TTkCore.cfg import TTkCfg
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
 from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
 from TermTk.TTkCore.color import TTkColor
 from TermTk.TTkWidgets.widget import TTkWidget
diff --git a/TermTk/TTkWidgets/Fancy/tree.py b/TermTk/TTkWidgets/Fancy/tree.py
index 1e51b9b0..040f7bd5 100644
--- a/TermTk/TTkWidgets/Fancy/tree.py
+++ b/TermTk/TTkWidgets/Fancy/tree.py
@@ -22,13 +22,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from TermTk.TTkCore.cfg import TTkCfg
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
-from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
-from TermTk.TTkCore.color import TTkColor
 from TermTk.TTkWidgets.Fancy.treewidget import TTkFancyTreeWidget
-from TermTk.TTkLayouts.gridlayout import TTkGridLayout
 from TermTk.TTkAbstract.abstractscrollarea import TTkAbstractScrollArea
 
 class TTkFancyTree(TTkAbstractScrollArea):
diff --git a/TermTk/TTkWidgets/Fancy/treeview.py b/TermTk/TTkWidgets/Fancy/treeview.py
index 1fd1a64e..9c0321d6 100644
--- a/TermTk/TTkWidgets/Fancy/treeview.py
+++ b/TermTk/TTkWidgets/Fancy/treeview.py
@@ -22,11 +22,6 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from TermTk.TTkCore.cfg import TTkCfg
-from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
-from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
-from TermTk.TTkCore.color import TTkColor
 from TermTk.TTkWidgets.Fancy.tableview import TTkFancyTableView
 
 class TTkFancyTreeView(TTkFancyTableView):
diff --git a/TermTk/TTkWidgets/Fancy/treewidget.py b/TermTk/TTkWidgets/Fancy/treewidget.py
index 624786eb..8d10757a 100644
--- a/TermTk/TTkWidgets/Fancy/treewidget.py
+++ b/TermTk/TTkWidgets/Fancy/treewidget.py
@@ -22,14 +22,11 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from TermTk.TTkCore.cfg import TTkCfg
 from TermTk.TTkCore.constant import TTkK
 from TermTk.TTkCore.log import TTkLog
 from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
-from TermTk.TTkCore.color import TTkColor
 from TermTk.TTkWidgets.widget import TTkWidget
 from TermTk.TTkWidgets.checkbox import TTkCheckbox
-from TermTk.TTkLayouts.gridlayout import TTkGridLayout
 from TermTk.TTkWidgets.Fancy.tableview import TTkFancyTableView
 from TermTk.TTkWidgets.Fancy.treewidgetitem import TTkFancyTreeWidgetItem
 
diff --git a/TermTk/TTkWidgets/Fancy/treewidgetitem.py b/TermTk/TTkWidgets/Fancy/treewidgetitem.py
index 0b2c7cd8..84cbf059 100644
--- a/TermTk/TTkWidgets/Fancy/treewidgetitem.py
+++ b/TermTk/TTkWidgets/Fancy/treewidgetitem.py
@@ -22,10 +22,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from TermTk.TTkCore.cfg import TTkCfg
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
-from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
+from TermTk.TTkCore.signal import pyTTkSignal
 
 class TTkFancyTreeWidgetItem():
     __slots__ = ('_parent', '_data', '_children', '_expand', '_childIndicatorPolicy',
diff --git a/TermTk/TTkWidgets/TTkModelView/filetree.py b/TermTk/TTkWidgets/TTkModelView/filetree.py
index 55f6c232..065bd469 100644
--- a/TermTk/TTkWidgets/TTkModelView/filetree.py
+++ b/TermTk/TTkWidgets/TTkModelView/filetree.py
@@ -22,8 +22,6 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
 from TermTk.TTkWidgets.TTkModelView.tree import TTkTree
 from TermTk.TTkWidgets.TTkModelView.filetreewidget import TTkFileTreeWidget
 
diff --git a/TermTk/TTkWidgets/TTkModelView/filetreewidget.py b/TermTk/TTkWidgets/TTkModelView/filetreewidget.py
index 72e5e162..e1641119 100644
--- a/TermTk/TTkWidgets/TTkModelView/filetreewidget.py
+++ b/TermTk/TTkWidgets/TTkModelView/filetreewidget.py
@@ -23,13 +23,11 @@
 # SOFTWARE.
 
 import os
-import re
 import datetime
 
 from TermTk.TTkCore.color import TTkColor
 
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
 from TermTk.TTkCore.cfg import TTkCfg
 from TermTk.TTkCore.string import TTkString
 from TermTk.TTkWidgets.TTkModelView.treewidget import TTkTreeWidget
diff --git a/TermTk/TTkWidgets/TTkModelView/filetreewidgetitem.py b/TermTk/TTkWidgets/TTkModelView/filetreewidgetitem.py
index d8488e9a..349e638a 100644
--- a/TermTk/TTkWidgets/TTkModelView/filetreewidgetitem.py
+++ b/TermTk/TTkWidgets/TTkModelView/filetreewidgetitem.py
@@ -24,14 +24,8 @@
 
 import re
 
-from TermTk.TTkCore.color import TTkColor
-
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
-from TermTk.TTkCore.cfg import TTkCfg
-from TermTk.TTkCore.string import TTkString
 from TermTk.TTkWidgets.TTkModelView.treewidgetitem import TTkTreeWidgetItem
-from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
 
 class TTkFileTreeWidgetItem(TTkTreeWidgetItem):
     FILE = 0x00
diff --git a/TermTk/TTkWidgets/TTkModelView/tree.py b/TermTk/TTkWidgets/TTkModelView/tree.py
index 28f6c1e2..834d5164 100644
--- a/TermTk/TTkWidgets/TTkModelView/tree.py
+++ b/TermTk/TTkWidgets/TTkModelView/tree.py
@@ -23,8 +23,6 @@
 # SOFTWARE.
 
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
-from TermTk.TTkWidgets.TTkModelView import treewidget
 from TermTk.TTkWidgets.TTkModelView.treewidget import TTkTreeWidget
 from TermTk.TTkAbstract.abstractscrollarea import TTkAbstractScrollArea
 
diff --git a/TermTk/TTkWidgets/TTkModelView/treewidget.py b/TermTk/TTkWidgets/TTkModelView/treewidget.py
index 2f0abcbe..874d399a 100644
--- a/TermTk/TTkWidgets/TTkModelView/treewidget.py
+++ b/TermTk/TTkWidgets/TTkModelView/treewidget.py
@@ -23,9 +23,7 @@
 # SOFTWARE.
 
 from TermTk.TTkCore.cfg import TTkCfg
-from TermTk.TTkCore.color import TTkColor
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
 from TermTk.TTkWidgets.TTkModelView.treewidgetitem import TTkTreeWidgetItem
 from TermTk.TTkAbstract.abstractscrollarea import TTkAbstractScrollView
 from TermTk.TTkCore.signal import pyTTkSignal, pyTTkSlot
diff --git a/TermTk/TTkWidgets/TTkModelView/treewidgetitem.py b/TermTk/TTkWidgets/TTkModelView/treewidgetitem.py
index 85c9c1ad..be29d132 100644
--- a/TermTk/TTkWidgets/TTkModelView/treewidgetitem.py
+++ b/TermTk/TTkWidgets/TTkModelView/treewidgetitem.py
@@ -24,8 +24,7 @@
 
 from TermTk.TTkCore.cfg import TTkCfg
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
-from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
+from TermTk.TTkCore.signal import pyTTkSlot
 from TermTk.TTkAbstract.abstractitemmodel import TTkAbstractItemModel
 
 
diff --git a/TermTk/TTkWidgets/TTkPickers/colorpicker.py b/TermTk/TTkWidgets/TTkPickers/colorpicker.py
index c7fcc535..80dc2f1b 100644
--- a/TermTk/TTkWidgets/TTkPickers/colorpicker.py
+++ b/TermTk/TTkWidgets/TTkPickers/colorpicker.py
@@ -33,7 +33,6 @@ from TermTk.TTkCore.helper import TTkHelper
 from TermTk.TTkWidgets.widget import TTkWidget
 from TermTk.TTkWidgets.window import TTkWindow
 from TermTk.TTkWidgets.button import TTkButton
-from TermTk.TTkWidgets.frame import TTkFrame
 from TermTk.TTkWidgets.label import TTkLabel
 from TermTk.TTkWidgets.lineedit import TTkLineEdit
 from TermTk.TTkWidgets.spinbox import TTkSpinBox
diff --git a/TermTk/TTkWidgets/TTkPickers/filepicker.py b/TermTk/TTkWidgets/TTkPickers/filepicker.py
index ca48e44b..afbf3d4e 100644
--- a/TermTk/TTkWidgets/TTkPickers/filepicker.py
+++ b/TermTk/TTkWidgets/TTkPickers/filepicker.py
@@ -28,7 +28,6 @@ import re
 from TermTk.TTkCore.color import TTkColor
 
 from TermTk.TTkCore.constant import TTkK
-from TermTk.TTkCore.log import TTkLog
 from TermTk.TTkCore.cfg import TTkCfg
 from TermTk.TTkCore.signal import pyTTkSlot, pyTTkSignal
 from TermTk.TTkCore.string import TTkString