diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index d6ed39c..28c61e1 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        python-version: ['3.8']  #, '3.10']
+        python-version: ['3.8', '3.10']
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     defaults:
diff --git a/qiimp/src/metadata_transformers.py b/qiimp/src/metadata_transformers.py
index f0a84e3..327c233 100644
--- a/qiimp/src/metadata_transformers.py
+++ b/qiimp/src/metadata_transformers.py
@@ -58,7 +58,7 @@ def format_a_datetime(row, source_fields):
     else:
         try:
             strftimeable_x = parser.parse(x)
-        except:
+        except:  # noqa: E722
             raise ValueError(f"{source_fields[0]} cannot be parsed to a date")
 
     formatted_x = strftimeable_x.strftime('%Y-%m-%d %H:%M')
diff --git a/qiimp/tests/test_metadata_configurator.py b/qiimp/tests/test_metadata_configurator.py
index 60a2df5..af5877e 100644
--- a/qiimp/tests/test_metadata_configurator.py
+++ b/qiimp/tests/test_metadata_configurator.py
@@ -763,197 +763,3 @@ def test_flatten_nested_stds_dict(self):
         self.assertDictEqual(
             self.FLATTENED_STDS_W_STUDY_DICT["host_type_specific_metadata"],
             out_flattened_dict)
-
-        # stds_nested_input = {
-        #     "host_type_specific_metadata": {
-        #         "host_associated": {
-        #             "metadata_fields": {
-        #                 # not overridden
-        #                 "country": {
-        #                     "allowed": ["USA"],
-        #                     "default": "USA",
-        #                     "empty": False,
-        #                     "is_phi": False,
-        #                     "required": True,
-        #                     "type": "string"
-        #                 },
-        #                 # overridden in stds sample type specific metadata
-        #                 "description": {
-        #                     "empty": False,
-        #                     "is_phi": False,
-        #                     "required": True,
-        #                     "type": "string"
-        #                 },
-        #                 # overridden in study lower host
-        #                 "dna_extracted": {
-        #                     "allowed": ["true", "false"],
-        #                     "default": "true",
-        #                     "empty": False,
-        #                     "is_phi": False,
-        #                     "required": True,
-        #                     "type": "string"
-        #                 },
-        #                 # overridden in stds lower host + sample type
-        #                 "elevation": {
-        #                     "anyof": [
-        #                         {
-        #                             "allowed": [
-        #                                 "not collected",
-        #                                 "not provided",
-        #                                 "restricted access"],
-        #                             "type": "string"
-        #                         },
-        #                         {
-        #                             "min": -413.0,
-        #                             "type": "number"
-        #                         }],
-        #                     "empty": False,
-        #                     "is_phi": False,
-        #                     "required": True
-        #                 },
-        #                 # overridden in study for this host
-        #                 "geo_loc_name": {
-        #                     "empty": False,
-        #                     "is_phi": False,
-        #                     "required": True,
-        #                     "type": "string"
-        #                 },
-        #                 # overridden in stds lower host
-        #                 "host_type": {
-        #                     "allowed": ["human", "non-human"],
-        #                     "empty": False,
-        #                     "is_phi": False,
-        #                     "required": True,
-        #                     "type": "string"
-        #                 }
-        #             },
-        #             "sample_type_specific_metadata": {
-        #                 "stool": {
-        #                     "metadata_fields": {
-        #                         # override of std host
-        #                         "description": {
-        #                             "allowed": ["stool"],
-        #                             "default": "stool",
-        #                             "type": "string"
-        #                         },
-        #                         # overridden BY study host + sample type
-        #                         "physical_specimen_location": {
-        #                             "allowed": ["UCSD"],
-        #                             "default": "UCSD",
-        #                             "empty": False,
-        #                             "is_phi": False,
-        #                             "required": True,
-        #                             "type": "string"
-        #                         },
-        #                         # overridden BY study lower host + sample type
-        #                         "physical_specimen_remaining": {
-        #                             "allowed": ["true", "false"],
-        #                             "default": "true",
-        #                             "empty": False,
-        #                             "is_phi": False,
-        #                             "required": True,
-        #                             "type": "string"
-        #                         }
-        #                     }
-        #                 }
-        #             },
-        #             "host_type_specific_metadata": {
-        #                 "human": {
-        #                     "metadata_fields": {
-        #                         # note: this overrides the standard for parent
-        #                         # host type BUT the study host type at this
-        #                         # level overrides THIS, and the study is
-        #                         # more specific than the standards; since
-        #                         # more specific always wins, this will NOT be
-        #                         # included in the output
-        #                         "dna_extracted": {
-        #                             "allowed": ["false"],
-        #                             "default": "false",
-        #                             "type": "string"
-        #                         },
-        #                         # override of parent std host
-        #                         "host_type": {
-        #                             "allowed": ["human"],
-        #                             "default": "human",
-        #                             "type": "string"
-        #                         }
-        #                     },
-        #                     "sample_type_specific_metadata": {
-        #                         "stool": {
-        #                             "metadata_fields": {
-        #                                 # override of parent std host
-        #                                 "elevation": {
-        #                                     "default": 14,
-        #                                     "type": "number"
-        #                                 }
-        #                             }
-        #                         }
-        #                     }
-        #                 }
-        #             }
-        #         }
-        #     }
-        # }
-        #
-        # flat_input = {
-        #     "host_type_specific_metadata": {
-        #         # FLAT list of host types
-        #         "host_associated": {
-        #             "metadata_fields": {
-        #                 # override of standard for this host type
-        #                 "geo_loc_name": {
-        #                     "allowed": ["USA:CA:San Diego"],
-        #                     "default": "USA:CA:San Diego",
-        #                     "type": "string"
-        #                 },
-        #                 # note: this overrides the standard for this host type
-        #                 # BUT the std lower host type overrides this,
-        #                 # and the lowest (most specific) directive wins,
-        #                 # so this will NOT be included in output
-        #                 "host_type": {
-        #                     "allowed": ["dog", "cat"],
-        #                     "type": "string"
-        #                 },
-        #             },
-        #             "sample_type_specific_metadata": {
-        #                 "stool": {
-        #                     "metadata_fields": {
-        #                         # override of standard for this
-        #                         # host + sample type
-        #                         "physical_specimen_location": {
-        #                             "allowed": ["UCSDMI"],
-        #                             "default": "UCSDMI",
-        #                             "type": "string"
-        #                         }
-        #                     }
-        #                 }
-        #             }
-        #         },
-        #         "human": {
-        #             "metadata_fields": {
-        #                 # overrides std parent host type
-        #                 "dna_extracted": {
-        #                     "allowed": ["true"],
-        #                     "default": "true",
-        #                     "type": "string"
-        #                 },
-        #             },
-        #             "sample_type_specific_metadata": {
-        #                 "stool": {
-        #                     "metadata_fields": {
-        #                         # override of std parent
-        #                         # host + sample type
-        #                         "physical_specimen_remaining": {
-        #                             "allowed": ["false"],
-        #                             "default": "false",
-        #                             "empty": False,
-        #                             "is_phi": False,
-        #                             "required": True,
-        #                             "type": "string"
-        #                         }
-        #                     }
-        #                 }
-        #             }
-        #         }
-        #     }
-        # }
\ No newline at end of file