made the shell able to handle table values

lib/shell.lua

@@ -1,3 +1,4 @@
+local serial = require "serialization"
 local shell = {}
 shell.include = {"shutil"}
 local function shindex(self,k)
@@ -25,8 +26,17 @@ function shell.interactive()
    local rt = {pcall(f)}
    local rs = table.remove(rt,1)
    for k,v in pairs(rt) do
+    if type(v) == "table" then
+     local w, s = pcall(serial.serialize,v)
+     if w then
+      print(s)
+     else
       print(tostring(v))
      end
+    else
+     print(tostring(v))
+    end
+   end
   end
  end
 end