better handling for python over bash

gaboshlib/g_kill_all_background_jobs.sh

@@ -1,3 +1,4 @@
 function g_kill_all_background_jobs {
-  kill -9 $(jobs -p)
+  kill -9 $(jobs -p) >/dev/null 2>&1
+
 }

gaboshlib/g_python.sh

@@ -13,22 +13,40 @@ function g_python {
   exec(open(\"${g_tmp}/${g_rnd}/python-in\").read())
 " >${g_tmp}/${g_rnd}/python-pipeexec.py
 
-    # bc stream channel
-    { python3 -u ${g_tmp}/${g_rnd}/python-pipeexec.py >${g_tmp}/${g_rnd}/python-out 2>&1 & }
+    # python stream channel
+    { python3 -u ${g_tmp}/${g_rnd}/python-pipeexec.py >${g_tmp}/${g_rnd}/python-out 2>${g_tmp}/${g_rnd}/python-error & }
     g_python_running="true"
   fi
 
   # do python
+  echo "$@" >${g_tmp}/${g_rnd}/python-in &
+  sleep 0.02
+
   local g_python_jobs
   mapfile -t g_python_jobs < <(jobs -r)
-  if [[ $g_python_jobs =~ python-pipeexec.py ]]
+  if ! [[ $g_python_jobs =~ python-pipeexec.py ]]
   then
-    echo $@ >${g_tmp}/${g_rnd}/python-in &
-    read -t 0.1 g_python_result <${g_tmp}/${g_rnd}/python-out
-    echo "RESULT: $g_python_result"
-  else
-    echo "FAIL: $g_python_result"
+    g_echo_error "$(cat ${g_tmp}/${g_rnd}/python-error)"
     unset g_python_running
+    return 1
+  fi
+
+  if [ -n "$g_python_waitforoutput" ]
+  then
+    until [ -n "$g_python_result" ]
+    do
+      read -t 0.1 g_python_result <${g_tmp}/${g_rnd}/python-out
+      [ -s "${g_tmp}/${g_rnd}/python-error" ] && break
+    done
+    unset g_python_waitforoutput
+  else
+    read -t0.2 g_python_result <${g_tmp}/${g_rnd}/python-out
+  fi
+
+  if [ -s "${g_tmp}/${g_rnd}/python-error" ]
+  then
+    g_echo_error "$(cat ${g_tmp}/${g_rnd}/python-error)"
+    return 1
   fi
 
 }