在Ubuntu系统中启动Django项目报错：ModuleNotFoundError: No module named '_sqlite3’
1.首先安装缺失的sqlite3库：
sudo apt-get install sqlite-devel
或
sudo apt-get install libsqlite3-dev
2.如果上面的方法不行，重新下载编译安装sqlite3
sudo wget https://www.sqlite.org/2018/sqlite-autoconf-3250300.tar.gz
sudo tar zxvf sqlite-autoconf-3250300.tar.gz
cd sqlite-autoconf-3250300
sudo ./configure
sudo make && make install
3.安装结束后，进入到python源文件目录下，重新编译安装python即可
sudo ./configure
sudo make && make install
4.进入到django项目下启动项目：
python3 manage.py runserver
项目顺利运行:
root@ubuntu:/home/fanzhh/projects/mysite# python3 manage.py runserver
Watching for file changes with StatReloader
Performing system checks...
System check identified no issues (0 silenced).
You have 17 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.
September 05, 2019 - 07:01:05
Django version 2.2.5, using settings 'mysite.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.