python os新建文件夹 python如何建立新文件夹

import os
# 创建文件夹
def Create_folder(filename):
    filename = filename.strip()
    filename = filename.rstrip("\\")
    isExists = os.path.exists(filename)

    if not isExists:
        os.makedirs(filename)
        print(filename+"创建成功")
        return  True
    else:
        print(filename+"已存在")
        return False

filename = "./model"
Create_folder(filename)