[builder][server] restore compatibility with python 3.7

1 files changed, 5 insertions, 5 deletions

diff --git a/src/hydrilla/json_instances.py b/src/hydrilla/json_instances.py
index fb34d5c..e6cf50f 100644
--- a/src/hydrilla/json_instances.py
+++ b/src/hydrilla/json_instances.py
@@ -111,7 +111,7 @@ _schema_name_re = re.compile(r'''
 $
 ''', re.VERBOSE)
 
-schema_paths: dict[str, Path] = {}
+schema_paths: t.Dict[str, Path] = {}
 for path in (here / 'schemas').rglob('*.schema.json'):
     match = _schema_name_re.match(path.name)
     assert match is not None
@@ -126,12 +126,12 @@ for path in (here / 'schemas').rglob('*.schema.json'):
 schema_paths.update([(f'https://hydrilla.koszko.org/schemas/{name}', path)
                      for name, path in schema_paths.items()])
 
-schemas: dict[Path, dict[str, t.Any]] = {}
+schemas: t.Dict[Path, t.Dict[str, t.Any]] = {}
 
 class UnknownSchemaError(HaketiloException):
     pass
 
-def _get_schema(schema_name: str) -> dict[str, t.Any]:
+def _get_schema(schema_name: str) -> t.Dict[str, t.Any]:
     """Return loaded JSON of the requested schema. Cache results."""
     path = schema_paths.get(schema_name)
     if path is None:
@@ -142,7 +142,7 @@ def _get_schema(schema_name: str) -> dict[str, t.Any]:
 
     return schemas[path]
 
-def validator_for(schema: t.Union[str, dict[str, t.Any]]) -> Draft7Validator:
+def validator_for(schema: t.Union[str, t.Dict[str, t.Any]]) -> Draft7Validator:
     """
     Prepare a validator for the provided schema.
 
@@ -163,7 +163,7 @@ def parse_instance(text: str) -> object:
     """Parse 'text' as JSON with additional '//' comments support."""
     return json.loads(strip_json_comments(text))
 
-InstanceSource = t.Union[Path, str, io.TextIOBase, dict[str, t.Any], bytes]
+InstanceSource = t.Union[Path, str, io.TextIOBase, t.Dict[str, t.Any], bytes]
 
 def read_instance(instance_or_path: InstanceSource) -> object:
     """...."""