scripts: Fix twisterlib for ruff - B904

This fixes ruff linting error B904,
where an error raised inside an except
clause does not specify from where it
should start.

Signed-off-by: Lukasz Mrugala <lukaszx.mrugala@intel.com>

.ruff-excludes.toml

@@ -764,7 +764,6 @@
 ]
 "./scripts/pylib/twister/twisterlib/config_parser.py" = [
     "B028",     # https://docs.astral.sh/ruff/rules/no-explicit-stacklevel
-    "B904",     # https://docs.astral.sh/ruff/rules/raise-without-from-inside-except
     "UP007",    # https://docs.astral.sh/ruff/rules/non-pep604-annotation
     "UP031",    # https://docs.astral.sh/ruff/rules/printf-string-formatting
 ]
@@ -799,7 +798,6 @@
     "UP031",    # https://docs.astral.sh/ruff/rules/printf-string-formatting
 ]
 "./scripts/pylib/twister/twisterlib/harness.py" = [
-    "B904",     # https://docs.astral.sh/ruff/rules/raise-without-from-inside-except
     "E501",     # https://docs.astral.sh/ruff/rules/line-too-long
     "F541",     # https://docs.astral.sh/ruff/rules/f-string-missing-placeholders
     "F811",     # https://docs.astral.sh/ruff/rules/redefined-while-unused
@@ -843,7 +841,6 @@
 ]
 "./scripts/pylib/twister/twisterlib/testinstance.py" = [
     "B006",     # https://docs.astral.sh/ruff/rules/mutable-argument-default
-    "B904",     # https://docs.astral.sh/ruff/rules/raise-without-from-inside-except
     "E501",     # https://docs.astral.sh/ruff/rules/line-too-long
     "UP015",    # https://docs.astral.sh/ruff/rules/redundant-open-modes
     "UP031",    # https://docs.astral.sh/ruff/rules/printf-string-formatting
@@ -851,7 +848,6 @@
 "./scripts/pylib/twister/twisterlib/testplan.py" = [
     "B006",     # https://docs.astral.sh/ruff/rules/mutable-argument-default
     "B023",     # https://docs.astral.sh/ruff/rules/function-uses-loop-variable
-    "B904",     # https://docs.astral.sh/ruff/rules/raise-without-from-inside-except
     "E402",     # https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file
     "E501",     # https://docs.astral.sh/ruff/rules/line-too-long
     "F401",     # https://docs.astral.sh/ruff/rules/unused-import
@@ -862,7 +858,6 @@
 ]
 "./scripts/pylib/twister/twisterlib/testsuite.py" = [
     "B006",     # https://docs.astral.sh/ruff/rules/mutable-argument-default
-    "B904",     # https://docs.astral.sh/ruff/rules/raise-without-from-inside-except
     "E501",     # https://docs.astral.sh/ruff/rules/line-too-long
     "UP031",    # https://docs.astral.sh/ruff/rules/printf-string-formatting
     "UP032",    # https://docs.astral.sh/ruff/rules/f-string

scripts/pylib/twister/twisterlib/config_parser.py

@@ -267,6 +267,7 @@ class TwisterConfigParser:
                 except ValueError:
                     raise ConfigurationError(
                         self.filename, "bad %s value '%s' for key '%s' in name '%s'" %
-                                       (kinfo["type"], d[k], k, name))
+                                       (kinfo["type"], d[k], k, name)
+                    ) from None
 
         return d

scripts/pylib/twister/twisterlib/harness.py

@@ -82,8 +82,8 @@ class Harness:
         try:
             key = value.name if isinstance(value, Enum) else value
             self._status = TwisterStatus[key]
-        except KeyError:
+        except KeyError as err:
-            raise StatusAttributeError(self.__class__, value)
+            raise StatusAttributeError(self.__class__, value) from err
 
     def configure(self, instance):
         self.instance = instance

scripts/pylib/twister/twisterlib/testinstance.py

@@ -110,8 +110,8 @@ class TestInstance:
         try:
             key = value.name if isinstance(value, Enum) else value
             self._status = TwisterStatus[key]
-        except KeyError:
+        except KeyError as err:
-            raise StatusAttributeError(self.__class__, value)
+            raise StatusAttributeError(self.__class__, value) from err
 
     def add_filter(self, reason, filter_type):
         self.filters.append({'type': filter_type, 'reason': reason })

scripts/pylib/twister/twisterlib/testplan.py

@@ -255,8 +255,8 @@ class TestPlan:
             s =  self.options.subset
             try:
                 subset, sets = (int(x) for x in s.split("/"))
-            except ValueError:
+            except ValueError as err:
-                raise TwisterRuntimeError("Bad subset value.")
+                raise TwisterRuntimeError("Bad subset value.") from err
 
             if subset > sets:
                 raise TwisterRuntimeError("subset should not exceed the total number of sets")

scripts/pylib/twister/twisterlib/testsuite.py

@@ -377,8 +377,8 @@ class TestCase(DisablePyTestCollectionMixin):
         try:
             key = value.name if isinstance(value, Enum) else value
             self._status = TwisterStatus[key]
-        except KeyError:
+        except KeyError as err:
-            raise StatusAttributeError(self.__class__, value)
+            raise StatusAttributeError(self.__class__, value) from err
 
     def __lt__(self, other):
         return self.name < other.name
@@ -443,8 +443,8 @@ class TestSuite(DisablePyTestCollectionMixin):
         try:
             key = value.name if isinstance(value, Enum) else value
             self._status = TwisterStatus[key]
-        except KeyError:
+        except KeyError as err:
-            raise StatusAttributeError(self.__class__, value)
+            raise StatusAttributeError(self.__class__, value) from err
 
     def load(self, data):
         for k, v in data.items():