Python控制台输出在Debian 6中被覆盖

我用python编写了一个小脚本，它使用Debian6（Python2.6.6）中的apt-get自动安装了一些包，比如wget、git。然后脚本安装

pip

，然后使用

pip

，安装请求和phpserialize。以下是运行脚本时获得的输出：

root@ffVMdeb64:~# python test.py 
Reading package lists... Done
mkdir: cannot create directory `/usr/local/src/forpip': File exists
Building dependency tree       
Reading state information... Done
git is already the newest version.
wget is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree... 50%


Building dependency tree       
Reading state information... Done
Requirement already satisfied (use --upgrade to upgrade): phpserialize in /usr/local/lib/python2.6/dist-packages
Cleaning up...
Requirement already satisfied (use --upgrade to upgrade): requests in /usr/local/lib/python2.6/dist-packages
Cleaning up...
git is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

最后，脚本从用户那里获取一些输入。但是，

raw_input

语句在安装过程的输出仍在进行时执行，因此被覆盖。请注意上面2个输出块之间的空白，也就是<代码> RWYPixEng/Cux>语句被打印然后重写的地方。< /P> 脚本的相关部分如下：

subprocess.call("pip install phpserialize &> /dev/null 2>&1", shell=True)
subprocess.call("pip install requests &> /dev/null  2>&1", shell=True)
subprocess.call("apt-get install git -y &> /dev/null 2>&1", shell=True)
import phpserialize
import requests
from phpserialize import serialize
from phpserialize import unserialize

def checktext():
    text = raw_input("\n\n\nEnter your text:")
    return text

itext = checktext()

我在CentOS 6.3和6.4中测试了完全相同的脚本，它按预期工作。我想这与

构建依赖关系树有关。。。50%

部分

apt get

但我不确定

---

我该如何纠正这一点？

这可能不是确切的解决方案，我很确定会有更好的解决方案，但我认为如果您在上一次

apt get

语句后尝试

睡眠

，可能会奏效

根据您的代码：

import time
subprocess.call("pip install phpserialize &> /dev/null 2>&1", shell=True)
subprocess.call("pip install requests &> /dev/null  2>&1", shell=True)
subprocess.call("apt-get install git -y &> /dev/null 2>&1", shell=True)
time.sleep(5)
import phpserialize
import requests
from phpserialize import serialize
from phpserialize import unserialize

def checktext():
    text = raw_input("\n\n\nEnter your text:")
    return text

itext = checktext()

这会导致整个

apt get

首先执行，然后转到

text=…

station

希望这有帮助