diff --git a/amitools/vamos/lib/ExecLibrary.py b/amitools/vamos/lib/ExecLibrary.py
index fb46f29d..a268ada4 100644
--- a/amitools/vamos/lib/ExecLibrary.py
+++ b/amitools/vamos/lib/ExecLibrary.py
@@ -3,7 +3,7 @@
 from amitools.vamos.libcore import LibImpl
 from amitools.vamos.astructs import *
 from amitools.vamos.atypes import ExecLibrary as ExecLibraryType
-from amitools.vamos.atypes import NodeType, Node, List
+from amitools.vamos.atypes import NodeType, List
 from amitools.vamos.log import log_exec
 from amitools.vamos.error import *
 from .lexec.PortManager import PortManager
diff --git a/amitools/vamos/lib/dos/CommandLine.py b/amitools/vamos/lib/dos/CommandLine.py
index 09392fcd..386b3176 100644
--- a/amitools/vamos/lib/dos/CommandLine.py
+++ b/amitools/vamos/lib/dos/CommandLine.py
@@ -1,4 +1,3 @@
-from .SysArgs import ami_quote_str
 from .Item import ItemParser
 from .CSource import CSource
 
diff --git a/amitools/vamos/lib/dos/Process.py b/amitools/vamos/lib/dos/Process.py
index 5cb37e6c..2cc081ec 100644
--- a/amitools/vamos/lib/dos/Process.py
+++ b/amitools/vamos/lib/dos/Process.py
@@ -1,11 +1,14 @@
-import os
-from amitools.vamos.machine.regs import *
+from amitools.vamos.astructs.dos import CLIStruct, DosPacketStruct, ProcessStruct
+from amitools.vamos.astructs.exec_ import MessageStruct, MinListStruct
+from amitools.vamos.lib.dos import CommandLine
 from amitools.vamos.log import log_proc
-from amitools.vamos.astructs import *
-from amitools.vamos.lib.lexec.PortManager import *
+from amitools.vamos.machine.regs import REG_D0, REG_D1, REG_D2, REG_A0, REG_A2, REG_A5, REG_A6
 from amitools.vamos.schedule import Stack, Task
+import os
+
 from .SysArgs import sys_args_to_ami_arg_str
 
+
 NT_PROCESS = 13
 
 
diff --git a/amitools/vamos/loader/segload.py b/amitools/vamos/loader/segload.py
index 9772f619..882cfa1c 100644
--- a/amitools/vamos/loader/segload.py
+++ b/amitools/vamos/loader/segload.py
@@ -2,7 +2,6 @@
 
 from amitools.binfmt.BinFmt import BinFmt
 from amitools.binfmt.Relocate import Relocate
-from amitools.vamos.label import LabelSegment
 from amitools.vamos.log import log_segload
 from .seglist import SegList