Fix fleet installation

.run/mobt start -m R,F b.run.xml

@@ -8,8 +8,8 @@
       <env name="PYTHONUNBUFFERED" value="1" />
     </envs>
     <option name="SDK_HOME" value="" />
-    <option name="SDK_NAME" value="Python 3.11 (mob-tool)" />
-    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="SDK_NAME" value="Python 3.12 (mob-tool)" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/tmp/repo-clone" />
     <option name="IS_MODULE_SDK" value="false" />
     <option name="ADD_CONTENT_ROOTS" value="true" />
     <option name="ADD_SOURCE_ROOTS" value="true" />

README.md

@@ -79,6 +79,13 @@ To set up the development environment, follow these steps:
 - Create a virtual environment with `python -m venv venv`.
 - Install the app from the local repository with `pip install -e .`
 
+e.g.:
+```
+rm -rfv venv
+python -m venv venv
+source ./venv/bin/activate
+pip install -e .
+```
 
 ## FAQ
 

pyproject.toml

@@ -32,7 +32,7 @@ dependencies = [
     'requests==2.32.3',
     'packaging==23.2',
     'marshmallow==3.21.3',
-    'flet==0.23.2',
+    'flet==0.9.0',
     'platformdirs==4.2.2',
     'setuptools==70.1.1',
 ]

src/mobt/Gui/GuiService.py

@@ -1,7 +1,12 @@
+import tarfile
 from dataclasses import dataclass
 
 import flet as ft
 
+# Python 3.12+ gives a deprecation warning if TarFile.extraction_filter is None.
+# https://docs.python.org/3.12/library/tarfile.html#tarfile-extraction-filter
+if hasattr(tarfile, "fully_trusted_filter"):
+    tarfile.TarFile.extraction_filter = staticmethod(tarfile.fully_trusted_filter)  # type: ignore
 
 @dataclass(frozen=True)
 class GuiService: