shell.py 文件源码

def mkdir_p(path):
    dirs = path.split(os.sep)
    parent=''
    for d in dirs:
        path = parent+d
        if os.path.exists(path):
            if not os.path.isdir(path):
                raise BaseException("Path component '"+parent+d+"' is a file")
        else:
            os.mkdir(path)
        parent = parent + d + posixpath.sep