fix linter issues

lib/galaxy/tools/parameters/basic.py

@@ -293,7 +293,7 @@ def validate(self, value, trans=None):
             try:
                 validator.validate(value, trans)
             except ValueError as e:
-                raise ValueError(f"Parameter {self.name}: {e}") from None 
+                raise ValueError(f"Parameter {self.name}: {e}") from None
 
     def to_dict(self, trans, other_values=None):
         """to_dict tool parameter. This can be overridden by subclasses."""
@@ -1998,7 +1998,6 @@ def do_validate(v):
                     except ValueError as e:
                         raise ValueError(f"Parameter {self.name}: {e}") from None
 
-
         dataset_count = 0
         if value:
             if self.multiple:

lib/galaxy/tools/parameters/validation.py

@@ -15,7 +15,6 @@
 log = logging.getLogger(__name__)
 
 
-
 class Validator(abc.ABC):
     """
     A validator checks that a value meets some conditions OR raises ValueError

test/unit/app/tools/test_parameter_validation.py

@@ -125,14 +125,14 @@ def test_RegexValidator(self):
         p.validate("Foo")
         p.validate("foo")
         with self.assertRaisesRegex(
-            ValueError, "Parameter blah: Value 'Fop' does not match regular expression '\[Ff\]oo'"
+            ValueError, r"Parameter blah: Value 'Fop' does not match regular expression '\[Ff\]oo'"
         ):
             p.validate("Fop")
 
         # test also valitation of lists (for select parameters)
         p.validate(["Foo", "foo"])
         with self.assertRaisesRegex(
-            ValueError, "Parameter blah: Value 'Fop' does not match regular expression '\[Ff\]oo'"
+            ValueError, r"Parameter blah: Value 'Fop' does not match regular expression '\[Ff\]oo'"
         ):
             p.validate(["Foo", "Fop"])
 
@@ -243,7 +243,7 @@ def test_DatasetOkValidator(self):
         ):
             p.validate(notok_hda)
         p = self._parameter_for(
-            xml=""" 
+            xml="""
 <param name="blah" type="data" no_validation="true">
     <validator type="dataset_ok_validator" negate="true"/>
 </param>"""
@@ -375,7 +375,7 @@ def test_MetadataValidator(self):
         ):
             p.validate(hda)
 
-        param_xml_negate = """ 
+        param_xml_negate = """
 <param name="blah" type="data">
     <validator type="metadata" check="{check}" skip="{skip}" negate="true"/>
 </param>"""