diff --git a/.gitignore b/.gitignore
index ee9ae770e9..e9ede979b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,7 @@ compile_commands.json
 *.lo
 *.o
 *.obj
+*.pyc
 
 # Precompiled Headers
 *.gch
diff --git a/scripts/JSON_data_files_validator.py b/scripts/JSON_data_files_validator.py
index 1f6301592f..9bed3eb368 100644
--- a/scripts/JSON_data_files_validator.py
+++ b/scripts/JSON_data_files_validator.py
@@ -15,7 +15,8 @@
 
 import brotli
 from schema import And, Optional, Schema
-
+# Import VT related schemas
+import LBDatafile_schema
 
 def exc_handler(exception_type, exception, traceback):
     """ Exception handler for hiding traceback. """
@@ -38,91 +39,7 @@ def get_error_message(iterable_collection: Iterable) -> str:
     def _get_valid_schema(self) -> Schema:
         """ Returns representation of a valid schema
         """
-        allowed_types_data = ("LBDatafile")
-        valid_schema_data = Schema(
-            {
-                Optional('type'): And(str, lambda a: a in allowed_types_data,
-                                      error=f"{self.get_error_message(allowed_types_data)} must be chosen"),
-                Optional('metadata'): {
-                    Optional('type'): And(str, lambda a: a in allowed_types_data,
-                                          error=f"{self.get_error_message(allowed_types_data)} must be chosen"),
-                    Optional('rank'): int,
-                    Optional('shared_node'): {
-                        'id': int,
-                        'size': int,
-                        'rank': int,
-                        'num_nodes': int,
-                    },
-                    Optional('phases'): {
-                        Optional('count'): int,
-                        'skipped': {
-                            'list': [int],
-                            'range': [[int]],
-                        },
-                        'identical_to_previous': {
-                            'list': [int],
-                            'range': [[int]],
-                        },
-                    },
-                    Optional('attributes'): dict
-                },
-                'phases': [
-                    {
-                        'id': int,
-                        'tasks': [
-                            {
-                                'entity': {
-                                    Optional('collection_id'): int,
-                                    'home': int,
-                                    'id': int,
-                                    Optional('index'): [int],
-                                    'type': str,
-                                    'migratable': bool,
-                                    Optional('objgroup_id'): int
-                                },
-                                'node': int,
-                                'resource': str,
-                                Optional('subphases'): [
-                                    {
-                                        'id': int,
-                                        'time': float,
-                                    }
-                                ],
-                                'time': float,
-                                Optional('user_defined'): dict,
-                                Optional('attributes'): dict
-                            },
-                        ],
-                        Optional('communications'): [
-                            {
-                                'type': str,
-                                'to': {
-                                    'type': str,
-                                    'id': int,
-                                    Optional('home'): int,
-                                    Optional('collection_id'): int,
-                                    Optional('migratable'): bool,
-                                    Optional('index'): [int],
-                                    Optional('objgroup_id'): int,
-                                },
-                                'messages': int,
-                                'from': {
-                                    'type': str,
-                                    'id': int,
-                                    Optional('home'): int,
-                                    Optional('collection_id'): int,
-                                    Optional('migratable'): bool,
-                                    Optional('index'): [int],
-                                    Optional('objgroup_id'): int,
-                                },
-                                'bytes': float
-                            }
-                        ],
-                        Optional('user_defined'): dict
-                    },
-                ]
-            }
-        )
+        valid_schema_data = LBDatafile_schema.LBDatafile_schema
         allowed_types_stats = ("LBStatsfile")
         valid_schema_stats = Schema(
             {
diff --git a/scripts/LBDatafile_schema.py b/scripts/LBDatafile_schema.py
new file mode 100644
index 0000000000..fadb471b32
--- /dev/null
+++ b/scripts/LBDatafile_schema.py
@@ -0,0 +1,84 @@
+from schema import And, Optional, Schema
+
+LBDatafile_schema = Schema(
+    {
+        Optional('type'): And(str, "LBDatafile", error="'LBDatafile' must be chosen."),
+        Optional('metadata'): {
+            Optional('type'): And(str, "LBDatafile", error="'LBDatafile' must be chosen."),
+            Optional('rank'): int,
+            Optional('shared_node'): {
+                'id': int,
+                'size': int,
+                'rank': int,
+                'num_nodes': int,
+            },
+            Optional('phases'): {
+                Optional('count'): int,
+                'skipped': {
+                    'list': [int],
+                    'range': [[int]],
+                },
+                'identical_to_previous': {
+                    'list': [int],
+                    'range': [[int]],
+                },
+            },
+            Optional('attributes'): dict
+        },
+        'phases': [
+            {
+                'id': int,
+                'tasks': [
+                    {
+                        'entity': {
+                            Optional('collection_id'): int,
+                            'home': int,
+                            'id': int,
+                            Optional('index'): [int],
+                            'type': str,
+                            'migratable': bool,
+                            Optional('objgroup_id'): int
+                        },
+                        'node': int,
+                        'resource': str,
+                        Optional('subphases'): [
+                            {
+                                'id': int,
+                                'time': float,
+                            }
+                        ],
+                        'time': float,
+                        Optional('user_defined'): dict,
+                        Optional('attributes'): dict
+                    },
+                ],
+                Optional('communications'): [
+                    {
+                        'type': str,
+                        'to': {
+                            'type': str,
+                            'id': int,
+                            Optional('home'): int,
+                            Optional('collection_id'): int,
+                            Optional('migratable'): bool,
+                            Optional('index'): [int],
+                            Optional('objgroup_id'): int,
+                        },
+                        'messages': int,
+                        'from': {
+                            'type': str,
+                            'id': int,
+                            Optional('home'): int,
+                            Optional('collection_id'): int,
+                            Optional('migratable'): bool,
+                            Optional('index'): [int],
+                            Optional('objgroup_id'): int,
+                        },
+                        'bytes': float
+                    }
+                ],
+                Optional('user_defined'): dict
+            },
+        ]
+    }
+)
\ No newline at end of file