diff --git a/virtinst/devices/char.py b/virtinst/devices/char.py
index d9195004..fc9d522d 100644
--- a/virtinst/devices/char.py
+++ b/virtinst/devices/char.py
@@ -39,22 +39,6 @@ class _DeviceChar(Device):
     MODE_BIND = "bind"
     MODES = [MODE_CONNECT, MODE_BIND]
 
-    PROTOCOL_RAW = "raw"
-    PROTOCOL_TELNET = "telnet"
-    PROTOCOLS = [PROTOCOL_RAW, PROTOCOL_TELNET]
-
-    CHANNEL_TARGET_GUESTFWD = "guestfwd"
-    CHANNEL_TARGET_VIRTIO = "virtio"
-    CHANNEL_TARGETS = [CHANNEL_TARGET_GUESTFWD,
-                       CHANNEL_TARGET_VIRTIO]
-
-    CONSOLE_TARGET_SERIAL = "serial"
-    CONSOLE_TARGET_UML = "uml"
-    CONSOLE_TARGET_XEN = "xen"
-    CONSOLE_TARGET_VIRTIO = "virtio"
-    CONSOLE_TARGETS = [CONSOLE_TARGET_SERIAL, CONSOLE_TARGET_UML,
-                       CONSOLE_TARGET_XEN, CONSOLE_TARGET_VIRTIO]
-
     CHANNEL_NAME_SPICE = "com.redhat.spice.0"
     CHANNEL_NAME_QEMUGA = "org.qemu.guest_agent.0"
     CHANNEL_NAME_LIBGUESTFS = "org.libguestfs.channel.0"
@@ -233,9 +217,9 @@ class _DeviceChar(Device):
         if not self.source_mode and self.supports_property("source_mode"):
             self.source_mode = self.MODE_BIND
         if not self.protocol and self.supports_property("protocol"):
-            self.protocol = self.PROTOCOL_RAW
+            self.protocol = "raw"
         if not self.target_type and self.DEVICE_TYPE == "channel":
-            self.target_type = self.CHANNEL_TARGET_VIRTIO
+            self.target_type = "virtio"
         if not self.target_name and self.type == self.TYPE_SPICEVMC:
             self.target_name = self.CHANNEL_NAME_SPICE
 
diff --git a/virtinst/devices/device.py b/virtinst/devices/device.py
index 7763feee..cdd95d70 100644
--- a/virtinst/devices/device.py
+++ b/virtinst/devices/device.py
@@ -35,10 +35,6 @@ class DeviceAddress(XMLBuilder):
     ADDRESS_TYPE_CCID          = "ccid"
     ADDRESS_TYPE_SPAPR_VIO     = "spapr-vio"
 
-    TYPES = [ADDRESS_TYPE_PCI, ADDRESS_TYPE_DRIVE,
-             ADDRESS_TYPE_VIRTIO_SERIAL, ADDRESS_TYPE_CCID,
-             ADDRESS_TYPE_SPAPR_VIO]
-
     XML_NAME = "address"
     _XML_PROP_ORDER = ["type", "domain", "controller", "bus", "slot",
                        "function", "target", "unit", "multifunction"]
diff --git a/virtinst/devices/graphics.py b/virtinst/devices/graphics.py
index 81c7d5b4..63ec262e 100644
--- a/virtinst/devices/graphics.py
+++ b/virtinst/devices/graphics.py
@@ -44,7 +44,6 @@ class DeviceGraphics(Device):
     TYPE_VNC = "vnc"
     TYPE_RDP = "rdp"
     TYPE_SPICE = "spice"
-    TYPES = [TYPE_VNC, TYPE_SDL, TYPE_RDP, TYPE_SPICE]
 
     CHANNEL_TYPE_MAIN     = "main"
     CHANNEL_TYPE_DISPLAY  = "display"
@@ -52,15 +51,6 @@ class DeviceGraphics(Device):
     CHANNEL_TYPE_CURSOR   = "cursor"
     CHANNEL_TYPE_PLAYBACK = "playback"
     CHANNEL_TYPE_RECORD   = "record"
-    CHANNEL_TYPES = [CHANNEL_TYPE_MAIN, CHANNEL_TYPE_DISPLAY,
-                     CHANNEL_TYPE_INPUTS, CHANNEL_TYPE_CURSOR,
-                     CHANNEL_TYPE_PLAYBACK, CHANNEL_TYPE_RECORD]
-
-    CHANNEL_MODE_SECURE   = "secure"
-    CHANNEL_MODE_INSECURE = "insecure"
-    CHANNEL_MODE_ANY      = "any"
-    CHANNEL_MODES = [CHANNEL_MODE_SECURE, CHANNEL_MODE_INSECURE,
-                     CHANNEL_MODE_ANY]
 
     KEYMAP_LOCAL = "local"
     KEYMAP_DEFAULT = "default"
diff --git a/virtinst/devices/panic.py b/virtinst/devices/panic.py
index 88eab274..f6d4a946 100644
--- a/virtinst/devices/panic.py
+++ b/virtinst/devices/panic.py
@@ -16,9 +16,6 @@ class DevicePanic(Device):
     MODEL_PSERIES = "pseries"
     MODEL_HYPERV = "hyperv"
     MODEL_S390 = "s390"
-    MODELS = [MODEL_ISA, MODEL_PSERIES, MODEL_HYPERV, MODEL_S390]
-
-    ISA_ADDRESS_TYPE = "isa"
 
     @staticmethod
     def get_pretty_model(panic_model):
@@ -61,6 +58,6 @@ class DevicePanic(Device):
 
     def set_defaults(self, guest):
         if not self.type and self.iobase:
-            self.type = DevicePanic.ISA_ADDRESS_TYPE
+            self.type = "isa"
         if not self.model:
             self.model = self.get_default_model(guest)
diff --git a/virtinst/domain/cpu.py b/virtinst/domain/cpu.py
index ed7fb69b..cb71f4f5 100644
--- a/virtinst/domain/cpu.py
+++ b/virtinst/domain/cpu.py
@@ -51,9 +51,6 @@ class _CPUFeature(XMLBuilder):
     """
     Class for generating <cpu> child <feature> XML
     """
-
-    POLICIES = ["force", "require", "optional", "disable", "forbid"]
-
     XML_NAME = "feature"
     _XML_PROP_ORDER = ["policy", "name"]
 
@@ -65,8 +62,6 @@ class DomainCpu(XMLBuilder):
     """
     Class for generating <cpu> XML
     """
-    MATCHS = ["minimum", "exact", "strict"]
-
     XML_NAME = "cpu"
     _XML_PROP_ORDER = ["mode", "match", "_model", "vendor",
                        "sockets", "cores", "threads", "features"]