Undo unintended change to python detection in conductor.sh

Author: gnachman

ssh-helpers/conductor.sh

@@ -119,6 +119,12 @@ detect_python() {
         [ -n "$python" ] && return 0
         return 1
     fi
+    python_detected="1"
+    python=$(command -v python3)
+    [ -z "$python" ] && python=$(command -v python2)
+    [ -z "$python" ] && python=$(command -v python)
+    if [ -z "$python" -o ! -x "$python" ]; then python=""; return 1; fi
+    log found python at $python
     return 0
 }