Correct error handling to not use BaseException

docs/release-notes.rst

@@ -22,6 +22,7 @@ Improvements
 - LCR Driver now supports instruments reporting as Keysight or Agilent. Newer models of the LCR meter report as Keysight, whereas older models report as Agilent.
 - Fixed a bug where the PPS would crash if it was polled too frequently.
 - Changed tolerances for PPS and DMM tests to more accurately match device accuracy.
+- Created a new FixateError base class for all exceptions raised by fixate to use. It inherits from Exception instead of BaseExcepetion to improve error handling.
 
 *************
 Version 0.6.4

src/fixate/core/exceptions.py

@@ -1,32 +1,36 @@
-class SequenceAbort(BaseException):
+class FixateError(Exception):
     pass
 
 
-class ScriptError(BaseException):
+class SequenceAbort(FixateError):
     pass
 
 
-class TestRetryExceeded(BaseException):
+class ScriptError(FixateError):
     pass
 
 
-class TestAbort(BaseException):
+class TestRetryExceeded(FixateError):
     pass
 
 
-class InstrumentError(BaseException):
+class TestAbort(FixateError):
+    pass
+
+
+class InstrumentError(FixateError):
     pass
 
 
 class InstrumentTimeOut(InstrumentError):
     pass
 
 
-class ParameterError(BaseException):
+class ParameterError(FixateError):
     pass
 
 
-class InvalidScalarQuantityError(BaseException):
+class InvalidScalarQuantityError(FixateError):
     pass
 
 
@@ -38,29 +42,29 @@ class InstrumentNotConnected(InstrumentError):
     pass
 
 
-class NotCompatible(BaseException):
+class NotCompatible(FixateError):
     pass
 
 
 class MissingParameters(ParameterError):
     pass
 
 
-class UserInputError(BaseException):
+class UserInputError(FixateError):
     pass
 
 
-class TestClassError(BaseException):
+class TestClassError(FixateError):
     pass
 
 
-class TestError(BaseException):
+class TestError(FixateError):
     pass
 
 
-class DUTError(BaseException):
+class DUTError(FixateError):
     pass
 
 
-class CheckFail(BaseException):
+class CheckFail(FixateError):
     pass

src/fixate/drivers/ftdi.py

@@ -6,7 +6,7 @@
 
 import fixate.drivers
 from fixate.core.common import bits
-from fixate.core.exceptions import InstrumentNotConnected
+from fixate.core.exceptions import FixateError, InstrumentNotConnected
 
 from fixate.drivers._ftdi import ftdI2xx
 
@@ -44,7 +44,7 @@
 }
 
 
-class FTD2XXError(BaseException):
+class FTD2XXError(FixateError):
     pass