Fix broken installation

source.sh

@@ -5,13 +5,14 @@
 # The build function is executed in the source directory
 # This function is used to compile the source code
 build() {
-  python3 -m build --wheel --no-isolation .
+  python setup.py import_cldr
+  python setup.py build
 }
 
 # The package function is executed in the source directory
 # This function is used to move the compiled files into the output directory
 package() {
-  python3 -m installer --destdir="$BPM_OUTPUT" dist/*.whl
+  python setup.py install --root="$BPM_OUTPUT" --optimize=1 --skip-build
 
   # Install package license
   install -Dm644 "$BPM_SOURCE"/LICENSE "$BPM_OUTPUT"/usr/share/licenses/python-babel/LICENSE