how can i import python application from one system into my python application via lan network.i want to use the other system`s python program in my system.

The question is far too general. You need to be more specific.

You can (in decreasing difficulty):

  • mount other systems directory - via smb, nfs etc - and import from there
  • download - via smb, ftp, http etc - other systems directory and import it locally
  • Use import hooks and the imp module, to begin read
  • simply override the __import__ function and do whatever you want, but face the consequences