cd works fine

bin/genn-docker-entrypoint.sh

@@ -17,13 +17,15 @@ if [[ "$1" = "script" ]]; then
     # **YUCK** this should not really be necessary but PyGeNN does
     # not work nicely running scripts not in working directory
     CWD=$(dirname "$1")
-    exec gosu genn:genn /bin/bash -c "cd \"$CWD\" && python3 \"$@\""
+    cd "$CWD"
+    exec gosu genn:genn python3 "$@"
 # Otherwise, if notebook is passes
 elif [[ "$1" = "notebook" ]]; then
-    # Extract working directory from next command line argument, otherwise use home
+    # Extract notebook directory from next command line argument, otherwise use home
     CWD=${2:-$HOME}
     exec gosu genn:genn /usr/local/bin/jupyter-notebook --ip=0.0.0.0 --port=8080 --no-browser --notebook-dir="$CWD"
-# Otherwise, execute arguments
+# Otherwise, change directory to home directory and execute arguments
 else
+    cd $HOME
     exec gosu genn:genn "$@"
 fi