参考this和this,我疯了这样的代码：

import os,cmd,sys,yaml
import os.path as op
import glob as gb

def _complete_path(path):
    if op.isdir(path):
        return gb.glob(op.join(path,'*'))
    else:
        return gb.glob(path+'*')

class CmdHandler(cmd.Cmd):

    def do_load(self,filename):
        try:
            with open(filename,'r') as f:
                self.cfg = yaml.load(f)
        except:
            print 'fail to load the file "{:}"'.format(filename)

    def complete_load(self,text,line,start_idx,end_idx):
        return _complete_path(text)

这适用于cwd,但是,当我想进入subdir时,在subdir /之后,complete_load函数的“text”变为空白,所以_complete_path func再次返回cwd.

我不知道如何使用tab-completion获取subdir的内容.
请帮忙！