Merge branch 'MCCS-227' into 'master'

[MCCS-227] switch to threadsafe `LockedMachine`

See merge request ska-telescope/lmc-base-classes!33

.release

-release=0.7.1
-tag=lmcbaseclasses-0.7.1
+release=0.7.2
+tag=lmcbaseclasses-0.7.2

README.md

@@ -25,6 +25,9 @@ The lmc-base-classe repository contains set of eight classes as mentioned in SKA
 
 ## Version History
 
+#### 0.7.2
+- Switch to threadsafe state machine
+
 #### 0.7.1
 - Bugfix for Reset() command
 

src/ska/base/release.py

@@ -7,7 +7,7 @@
 """Release information for lmc-base-classes Python Package"""
 
 name = """lmcbaseclasses"""
-version = "0.7.1"
+version = "0.7.2"
 version_info = version.split(".")
 description = """A set of generic base devices for SKA Telescope."""
 author = "SKA India and SARAO and CSIRO"

src/ska/base/state_machine.py

 """
 This module contains specifications of SKA state machines.
 """
-from transitions import Machine, State
+from transitions import State
+from transitions.extensions import LockedMachine as Machine
 
 
 __all__ = ["OperationStateMachine", "AdminModeStateMachine", "ObservationStateMachine"]