fix annotations

Author: vld-codra

plotpy/tests/unit/test_cursor_tools.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import numpy as np
 import pytest
 from guidata.qthelpers import exec_dialog, qt_app_context

plotpy/tests/unit/test_events.py

@@ -2,6 +2,8 @@
 This files tests the vent handlers not covered by other tests.
 """
 
+from __future__ import annotations
+
 from typing import Callable
 
 import numpy as np

plotpy/tests/unit/test_manipulate_selection.py

@@ -1,26 +1,22 @@
-from typing import Callable, Protocol
+from __future__ import annotations
+
+from typing import Callable, TypeVar
 
 import numpy as np
 import pytest
 import qtpy.QtCore as QC
-import qtpy.QtWidgets as QW
 from guidata.qthelpers import exec_dialog, qt_app_context
-from qwt import QwtPlotItem
-from typing_extensions import TypeVar
 
 from plotpy.builder import make
 from plotpy.interfaces.items import (
-    IBasePlotItem,
     IImageItemType,
-    IItemType,
     IShapeItemType,
 )
 from plotpy.items.image.base import BaseImageItem
 from plotpy.items.image.transform import TrImageItem
 from plotpy.plot.base import BasePlot
 from plotpy.plot.plotwidget import PlotWindow
 from plotpy.tests.data import gen_image4
-from plotpy.tests.items.test_transform import make_items
 from plotpy.tests.unit.utils import (
     create_window,
     drag_mouse,

plotpy/tests/unit/test_mask_tool.py

@@ -1,21 +1,15 @@
-import contextlib
+from __future__ import annotations
 
-import numpy as np
 import pytest
 from guidata.env import execenv
 from guidata.qthelpers import exec_dialog, qt_app_context
 
 from plotpy.builder import make
-from plotpy.interfaces.items import IImageItemType
-from plotpy.plot import BasePlot
 from plotpy.tests.data import gen_image4
 from plotpy.tests.unit.utils import (
-    drag_mouse,
-    mouse_event_at_relative_plot_pos,
     rel_pos_to_canvas_pos,
 )
-from plotpy.tools import ColormapTool, ReverseColormapTool
-from plotpy.tools.image import ImageMaskTool, LockTrImageTool
+from plotpy.tools.image import ImageMaskTool
 from plotpy.tools.shape import CircleTool, RectangleTool, RectangularShapeTool