diff --git a/datagateway_api/src/main.py b/datagateway_api/src/main.py
index d7d2950b..d971d724 100644
--- a/datagateway_api/src/main.py
+++ b/datagateway_api/src/main.py
@@ -9,7 +9,6 @@
 from flask_swagger_ui import get_swaggerui_blueprint
 
 from datagateway_api.common.config import config
-from datagateway_api.common.exceptions import ApiError
 from datagateway_api.common.logger_setup import setup_logger
 from datagateway_api.src.resources.entities.entity_endpoint import (
     get_count_endpoint,
diff --git a/datagateway_api/src/swagger/initialise_spec.py b/datagateway_api/src/swagger/initialise_spec.py
index 5ad18d80..79350077 100644
--- a/datagateway_api/src/swagger/initialise_spec.py
+++ b/datagateway_api/src/swagger/initialise_spec.py
@@ -64,8 +64,8 @@ def initialise_spec(spec):
                                             {"type": "number"},
                                             {"type": "integer"},
                                             {"type": "boolean"},
-                                        ]
-                                    }
+                                        ],
+                                    },
                                 },
                             },
                             {
@@ -105,8 +105,8 @@ def initialise_spec(spec):
                                         "oneOf": [
                                             {"type": "number"},
                                             {"type": "integer"},
-                                        ]
-                                    }
+                                        ],
+                                    },
                                 },
                             },
                             {
@@ -117,8 +117,8 @@ def initialise_spec(spec):
                                         "oneOf": [
                                             {"type": "number"},
                                             {"type": "integer"},
-                                        ]
-                                    }
+                                        ],
+                                    },
                                 },
                             },
                             {