在与子进程输出相同的行上打印一些东西

Question

我想出了这个代码：

import os, subprocess, sys

location = os.path.dirname(os.path.realpath(__file__))

file = os.path.basename(__file__)

#print location # + r'\' + file

user_in = raw_input(location + '>')

if user_in == 'cd ..':

    proc = subprocess.Popen('cd .. && cd', shell=True,stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin= subprocess.PIPE)

    new_location = proc.stdout.read() + proc.stderr.read() + '>'

    #new_location = str(new_location) + '>'

    new_location = new_location.replace(r'\r','')

    new_location = new_location.replace(' ','')

    print new_location

    #new_user_in = raw_input(str(new_location) + '>')

    #subprocess.Popen('cd .. && ' + new_user_in, shell=True)

但是当我运行它并输入时，cd ..我得到：

D:\Documents\Programmed\DesktopUnsorted

>

我不想要这个，因为我想要它做的是：

D:\Documents\Programmed\DesktopUnsorted>

编辑

我也已经尝试过： new_location = new_location.replace(r'\n','')

但它不会改变任何东西