Mac os下Python3安装Django

//pip版本 
pip -V //对应python2.7
pip 9.0.1 from /Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg (python 2.7)

pip3 -V //对应python3.6
pip 9.0.1 from /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages (python 3.6)

sudo pip3 install Django==1.11.7

Installing collected packages: Django
Found existing installation: Django 2.1.dev20171130142844 //之前用github下载安装的最新版，2.x 版本太高
Uninstalling Django-2.1.dev20171130142844:
Successfully uninstalled Django-2.1.dev20171130142844 //自动卸载掉之前的版本
Successfully installed Django-1.11.7 //安装成功

cd /Users/z/PyP/Django

sudo django-admin.py startproject testLocalHost

cd testLocalHost

python3 manage.py runserver

...xxx
.....xxx
django.db.utils.OperationalError: unable to open database file

sudo python3 manage.py runserver

Performing system checks...

System check identified no issues (0 silenced).

You have 13 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.
Run ‘python manage.py migrate‘ to apply them.

December 01, 2017 - 08:33:50
Django version 1.11.7, using settings ‘testLocalHost.settings‘
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.

import django

print(django.VERSION)

import sys

print(sys.path)