Ubuntu16.04 從源碼安裝並升級python版本爲3.6

1. 下載python3.6源碼包

wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz

2. 解壓並開始安裝

tar -xvf Python-3.6.5.tgz
cd Python-3.6.5/
./configure
make && make install

3. 替換python3爲python3.6

update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1
update-alternatives --install /usr/bin/python3 python3 /usr/local/bin/python3.6 2
update-alternatives --config python3

4. 解決pip3安裝問題

替換版本之後 pip3 install 時會提示錯誤subprocess.CalledProcessError: Command 'lsb_release -a' returned non-zero exit status 1., 重點關注lsb_release.py這個模塊
我們將python3.5中的lsb_release.py複製到python3.6中

root@ubuntu:~# find / -name 'lsb_release.py'
/usr/lib/python2.7/dist-packages/lsb_release.py
/usr/lib/python3/dist-packages/lsb_release.py
/usr/share/pyshared/lsb_release.py
root@ubuntu:~# cp /usr/lib/python3/dist-packages/lsb_release.py /usr/local/lib/python3.6/