树莓派上apt-get 安装pip直接abort

今天在玩树莓派的时候想要安装pip(python的包管理器)可是当输入

sudo apt-get install python-pip  

直接给我来了个这个

pi@raspberrypi:~ $ sudo apt-get install python-pip
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  gir1.2-glib-2.0 libdbus-glib-1-2 libexpat1-dev libgirepository-1.0-1 libpython-all-dev
  libpython-dev libpython2.7 libpython2.7-dev python-all python-all-dev python-cffi-backend
  python-crypto python-cryptography python-dbus python-dev python-enum34 python-gi python-idna
  python-ipaddress python-keyring python-keyrings.alt python-pip-whl python-pkg-resources
  python-pyasn1 python-secretstorage python-setuptools python-six python-wheel python-xdg
  python2.7-dev
Suggested packages:
  python-crypto-dbg python-crypto-doc python-cryptography-doc python-cryptography-vectors
  python-dbus-dbg python-dbus-doc python-enum34-doc python-gi-cairo gnome-keyring libkf5wallet-bin
  gir1.2-gnomekeyring-1.0 python-fs python-gdata python-kde4 python-keyczar doc-base
  python-secretstorage-doc python-setuptools-doc
The following NEW packages will be installed:
  gir1.2-glib-2.0 libdbus-glib-1-2 libexpat1-dev libgirepository-1.0-1 libpython-all-dev
  libpython-dev libpython2.7 libpython2.7-dev python-all python-all-dev python-cffi-backend
  python-crypto python-cryptography python-dbus python-dev python-enum34 python-gi python-idna
  python-ipaddress python-keyring python-keyrings.alt python-pip python-pip-whl python-pkg-resources
  python-pyasn1 python-secretstorage python-setuptools python-six python-wheel python-xdg
  python2.7-dev
0 upgraded, 31 newly installed, 0 to remove and 17 not upgraded.
Need to get 32.8 MB of archives.
After this operation, 51.6 MB of additional disk space will be used.
Do you want to continue? [Y/n] Abort.
pi@raspberrypi:~ $

一切正常却在出现[Y/n]选择时直接abort了，非常奇怪。不过幸好apt-get提供了-y参数只要使用

sudo apt-get install -y python-pip  

默认问答为yes即可正常安装，猜测这里可能是apt被某种原因直接设置成了不允许问答，寻找答案中。。

续：发现系统重启后又一切正常了，真是what the f***!