1.安裝依賴包
1）首先安裝gcc編譯器，gcc有些系統版本已經默認安裝，通過 gcc --version 查看，沒安裝的先安裝gcc，yum -y install gcc
2）安裝其它依賴包，（注：不要缺少，否則有可能安裝python出錯，python3.7.0以下的版本可不裝 libffi-devel ）
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel
2.下載python3.7.4源碼，根據需求下載
1）在https://www.python.org/ftp/python/中選擇自己需要的python源碼包，我下載的是python3.7.0
(大家也可以去https://www.python.org官網首頁下載，找到downloads，就可以選擇想要的版本下載了)
1）下載
wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz
2）解壓Python-3.7.4.tgz
tar -zxvf Python-3.7.4.tgz
3.建立一個空文件夾，用於存放python3程序
mkdir /python3
4.執行配置文件，編譯，編譯安裝
cd python3
./configure --prefix=/python3/python3.7.4 --with-ssl
make && make install
【問題解決】:no acceptable C compiler found in $PATH when installing python
執行安裝：apt-get install build-essential
【問題解決】：zipimport.ZipImportError: can't decompress data; zlib not available
sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev \
libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
xz-utils tk-dev
安裝完成沒有提示錯誤便安裝成功了
5.建立軟連接
ln -s /python3/python3.7.4/bin/python3 /usr/bin/python3
ln -s /python3/python3.7.4/bin/pip3 /usr/bin/pip3
6.測試一下python3是否可以用
python3 -V
pip3 -V
將pip升級到最新版本：
python3 -m pip install --upgrade pip
【問題解決】pip安裝時出現"return Command 'lsb_release -a' returned non-zero exit status 1"
刪除lsb_release文件可解決此問題
sudo rm /usr/bin/lsb_release
可參考連接：https://github.com/pypa/pip/issues/4924
8.Wagtail安裝
mkdir wagtail
cd wagtail
python3 -m venv env
source env/bin/activate
pip3 install wagtail
wagtail start mysite
cd mysite
pip3 install -r requirements.txt
python3 manage.py migrate
python3 manage.py createsuperuser
python3 manage.py runserver
可參照
9.編寫腳本讓Blog服務後臺運行
#!/bin/bash
cd /root/wagtail/mysite
nohup python3 manage.py runserver 127.0.0.1:8000 &