Install python3.6 under Ubuntu 16.04

# Download the installation package from the official website
1. wget http://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgz

# Unzip
2. tar -xvzf Python-3.6.4.tgz

# installation
3. cd Python-3.6.44../configure --with-ssl

# Compile
5. sudo make
6. sudo make install

# Create a soft connection, first check python3.6.4 installation path
7. which python3    # /usr/local/bin/python38.mv python python_org  ##Keep the original python
9. sudo  ln -s /usr/local/bin/python3 python10.pip3 install --upgrade pip ###Update pip311.mv pip pip_org  ##Keep the original pip
12. sudo  ln -s /usr/local/bin/pip3 pip

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