IDE custom code validation

The following expressions can not be used in the custom code for both security and technical reasons:

• no_shell = [
  "os.execl",
  "os.execle",
  "os.execlp",
  "os.execlpe",
  "os.execv",
  "os.execve",
  "os.execvp",
  "os.execvpe",
  "os.spawnl",
  "os.spawnle",
  "os.spawnlp",
  "os.spawnlpe",
  "os.spawnv",
  "os.spawnve",
  "os.spawnvp",
  "os.spawnvpe",
  "os.startfile"
  ]

• shell = [
  "os.system",
  "os.popen",
  "os.popen2",
  "os.popen3",
  "os.popen4",
  "popen2.popen2",
  "popen2.popen3",
  "popen2.popen4",
  "popen2.Popen3",
  "popen2.Popen4",
  "commands.getoutput",
  "commands.getstatusoutput"
  ]

• subprocess = [
  "subprocess.Popen",
  "subprocess.call",
  "subprocess.check_call",
  "subprocess.check_output"
  ]