From 715801a43c76dc3ba85b02fc974bd642218ea442 Mon Sep 17 00:00:00 2001
From: FriedrichFroebel <FriedrichFroebel@users.noreply.github.com>
Date: Sat, 28 Oct 2023 12:38:46 +0200
Subject: [PATCH] attempt to fix types

---
 brother_ql_web/utils.py     | 11 +++++++++--
 brother_ql_web/web.py       |  6 +++---
 tests/test_cli.py           |  2 ++
 tests/test_configuration.py |  2 ++
 tests/test_font_helpers.py  |  2 ++
 5 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/brother_ql_web/utils.py b/brother_ql_web/utils.py
index 7cb301c..9347c42 100644
--- a/brother_ql_web/utils.py
+++ b/brother_ql_web/utils.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import sys
 from typing import cast
 
 from brother_ql.backends import backend_factory, BrotherQLBackendGeneric, guess_backend
@@ -7,6 +8,12 @@
 from brother_ql_web.configuration import Configuration
 from brother_ql_web.font_helpers import get_fonts
 
+if sys.version_info < (3, 9):
+    from typing import Type
+    BACKEND_TYPE = Type[BrotherQLBackendGeneric]
+else:
+    BACKEND_TYPE = type[BrotherQLBackendGeneric]
+
 
 def collect_fonts(configuration: Configuration) -> dict[str, dict[str, str]]:
     fonts = get_fonts()
@@ -23,7 +30,7 @@ class BackendGuessingError(ValueError):
     pass
 
 
-def get_backend_class(configuration: Configuration) -> type[BrotherQLBackendGeneric]:
+def get_backend_class(configuration: Configuration) -> BACKEND_TYPE:
     try:
         selected_backend = guess_backend(configuration.printer.printer)
     except ValueError:
@@ -31,6 +38,6 @@ def get_backend_class(configuration: Configuration) -> type[BrotherQLBackendGene
             "Couln't guess the backend to use from the printer string descriptor"
         )
     return cast(
-        type[BrotherQLBackendGeneric],
+        BACKEND_TYPE,
         backend_factory(selected_backend)["backend_class"],
     )
diff --git a/brother_ql_web/web.py b/brother_ql_web/web.py
index d622f8a..541a9b6 100644
--- a/brother_ql_web/web.py
+++ b/brother_ql_web/web.py
@@ -5,7 +5,6 @@
 from typing import Any, cast
 
 import bottle
-from brother_ql.backends import BrotherQLBackendGeneric
 from brother_ql_web.configuration import Configuration
 from brother_ql_web.labels import (
     LabelParameters,
@@ -14,6 +13,7 @@
     generate_label,
     print_label,
 )
+from brother_ql_web.utils import BACKEND_TYPE
 
 
 logger = logging.getLogger(__name__)
@@ -133,7 +133,7 @@ def print_text() -> dict[str, bool | str]:
                     Configuration, get_config("brother_ql_web.configuration")
                 ),
                 backend_class=cast(
-                    type[BrotherQLBackendGeneric],
+                    BACKEND_TYPE,
                     get_config("brother_ql_web.backend_class"),
                 ),
             )
@@ -152,7 +152,7 @@ def main(
     configuration: Configuration,
     fonts: dict[str, dict[str, str]],
     label_sizes: list[tuple[str, str]],
-    backend_class: type[BrotherQLBackendGeneric],
+    backend_class: BACKEND_TYPE,
 ) -> None:
     app = bottle.default_app()
     app.config["brother_ql_web.configuration"] = configuration
diff --git a/tests/test_cli.py b/tests/test_cli.py
index d35c0c0..21d2f5b 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from argparse import Namespace
 from io import StringIO
 from contextlib import redirect_stderr
diff --git a/tests/test_configuration.py b/tests/test_configuration.py
index 97ce383..ff3eb98 100644
--- a/tests/test_configuration.py
+++ b/tests/test_configuration.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import json
 from tempfile import NamedTemporaryFile
 from typing import cast
diff --git a/tests/test_font_helpers.py b/tests/test_font_helpers.py
index 39060a9..79fd4c6 100644
--- a/tests/test_font_helpers.py
+++ b/tests/test_font_helpers.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from unittest import TestCase
 
 from brother_ql_web.font_helpers import get_fonts