python3.6 import sqlite3 error - python-3.x

Question

I installed Python3.6 on ubuntu16.04 and installed sqlite3. When in python2, I can import sqlite successfully, but in python3 I got an import error. I tried many methods from Google, but it still doesn't work. I want to know how to solve it.
Python 3.6.0 (default, Mar 13 2017, 06:38:19)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
> import sqlite3
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.6/sqlite3/__init__.py", line 23, in <module>
from sqlite3.dbapi2 import *
File "/usr/local/lib/python3.6/sqlite3/dbapi2.py", line 27, in <module>
from _sqlite3 import *
ModuleNotFoundError: No module named '_sqlite3'

Answer 1

sqlite3 will comes with python itself. I also get the same problem i just uninstalled the python3.6 and installed again.
uninstall existing python:
sudo apt-get remove --purge python3.6
Install python3.6:
sudo apt install -y \
build-essential \
checkinstall
sudo apt install -y \
libreadline-gplv2-dev \
libncursesw5-dev \
libssl-dev \
libsqlite3-dev \
tk-dev \
libgdbm-dev \
libc6-dev \
libbz2-dev
PYTHON_VERSION=3.6.0
wget https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz
tar xvf Python-${PYTHON_VERSION}.tar.xz
cd Python-${PYTHON_VERSION}/
./configure
sudo make altinstall
It works!

Answer 2

You can install python3 and sqlite by yourself.
try this.
Or you can try it as follows,
1. install sqlite3
$ wget https://www.sqlite.org/2017/sqlite-autoconf-3170000.tar.gz --no-check-certificate
$ tar zxvf sqlite-autoconf-3170000.tar.gz
$ cd sqlite-autoconf-3170000
$ ./configure --prefix=/usr/local/sqlite3 --disable-static --enable-fts5 --enable-json1 CFLAGS="-g -O2 -DSQLITE_ENABLE_FTS3=1 -DSQLITE_ENABLE_FTS4=1 -DSQLITE_ENABLE_RTREE=1"
2. install python3.6
$ cd Python-3.6.0
$ LD_RUN_PATH=/usr/local/sqlite3/lib ./configure --prefix=/usr/local/python3.6 LDFLAGS="-L/usr/local/sqlite3/lib" CPPFLAGS="-I /usr/local/sqlite3/include"
$ LD_RUN_PATH=/usr/local/sqlite3/lib make
$ LD_RUN_PATH=/usr/local/sqlite3/lib make install