Try to use specified python version on linux and mac, with fallback

webui-macos-env.sh

@@ -4,11 +4,6 @@
 # Please modify webui-user.sh to change these instead of this file #
 ####################################################################
 
-if [[ -x "$(command -v python3.10)" ]]
-then
-    python_cmd="python3.10"
-fi
-
 export install_dir="$HOME"
 export COMMANDLINE_ARGS="--skip-torch-cuda-test --upcast-sampling --no-half-vae --use-cpu interrogate"
 export PYTORCH_ENABLE_MPS_FALLBACK=1

webui.sh

@@ -44,7 +44,11 @@ fi
 # python3 executable
 if [[ -z "${python_cmd}" ]]
 then
-    python_cmd="python3"
+  python_cmd="python3.10"
+fi
+if [[ ! -x "$(command -v "${python_cmd}")" ]]
+then
+  python_cmd="python3"
 fi
 
 # git executable