diff --git a/lib/galaxy/tools/parameters/basic.py b/lib/galaxy/tools/parameters/basic.py
index 2a150806d60b..6b06711c9c1f 100644
--- a/lib/galaxy/tools/parameters/basic.py
+++ b/lib/galaxy/tools/parameters/basic.py
@@ -258,13 +258,12 @@ def value_from_basic(self, value, app, ignore_errors=False):
         elif isinstance(value, MutableMapping) and value.get("__class__") == "UnvalidatedValue":
             return value["value"]
         # Delegate to the 'to_python' method
-        if ignore_errors:
-            try:
-                return self.to_python(value, app)
-            except Exception:
-                return value
-        else:
+        try:
             return self.to_python(value, app)
+        except Exception:
+            if not ignore_errors:
+                raise
+            return value
 
     def value_to_display_text(self, value) -> str:
         if is_runtime_value(value):
diff --git a/lib/galaxy/tools/parameters/grouping.py b/lib/galaxy/tools/parameters/grouping.py
index 26b4e171c0de..5a0e256fcbf2 100644
--- a/lib/galaxy/tools/parameters/grouping.py
+++ b/lib/galaxy/tools/parameters/grouping.py
@@ -161,9 +161,9 @@ def value_from_basic(self, value, app, ignore_errors=False):
                     else:
                         rval_dict[input.name] = input.value_from_basic(d[input.name], app, ignore_errors)
                 rval.append(rval_dict)
-        except Exception as e:
+        except Exception:
             if not ignore_errors:
-                raise e
+                raise
         return rval
 
     def get_initial_value(self, trans, context):
@@ -226,9 +226,9 @@ def value_from_basic(self, value, app, ignore_errors=False):
             for input in self.inputs.values():
                 if not ignore_errors or input.name in value:
                     rval[input.name] = input.value_from_basic(value[input.name], app, ignore_errors)
-        except Exception as e:
+        except Exception:
             if not ignore_errors:
-                raise e
+                raise
         return rval
 
     def get_initial_value(self, trans, context):
@@ -389,9 +389,9 @@ def value_from_basic(self, value, app, ignore_errors=False):
                     else:
                         rval_dict[input.name] = input.value_from_basic(d[input.name], app, ignore_errors)
                 rval.append(rval_dict)
-            except Exception as e:
+            except Exception:
                 if not ignore_errors:
-                    raise e
+                    raise
         return rval
 
     def get_file_count(self, trans, context):
@@ -794,9 +794,9 @@ def value_from_basic(self, value, app, ignore_errors=False):
                 # conditional's values dictionary.
                 if not ignore_errors or input.name in value:
                     rval[input.name] = input.value_from_basic(value[input.name], app, ignore_errors)
-        except Exception as e:
+        except Exception:
             if not ignore_errors:
-                raise e
+                raise
         return rval
 
     def get_initial_value(self, trans, context):