?????? how can I implement "cd" like shell in Python?

I just want to write a python program,it can be called in the linux terminal like the command "cd" to change the directory of the shell terminal -- -- ??: "Dave Angel"; : 2012??6??28??(??) ????8:12 ??: "A

Re: how can I implement "cd" like shell in Python?

OK,I see! Thank you everyone. -- Original -- From: "Evan Driscoll"; Date: Thu, Jun 28, 2012 10:27 PM To: "Alex chen"; Cc: "d"; "python-list"; Subject: Re: how can I implement "cd" like shell in