Code Objects / Variable Names

[F. Schaefer]

PROBLEM: 

  How can you know what variables are involved in a code object. 

  It is not possible to execute the code object simply into a 
  dictionary and then watch the defined variables. This is 
  because these code objects only contain conditions, that 
  read out variables.

EXAMPLE: 

  For the following (compiled) condition 

          (door == "ajar"   and   alternator == "off") || time > 25

  I need to extract, that the variables 'door', 'alternator' and 'time'
  are involved.


Best Regards,

Frank Schäfer.