问题1：Python版本问题

报错信息：

NOTICE: You are using Python 3.6 which is EOL. Starting with v0.62.0, Meson will require Python 3.7 or newer

ubuntu 18默认的python3是3.6.

解决方案1：从源码安装python 3.7

wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz

tar -xzvf Python-3.7.4.tgz

cd Python-3.7.4

./configure --prefix=/usr/local/src/python37  # 配置安装位置

sudo make

sudo make install

 解决方案2：安装python 3.7(推荐)

sudo apt install python3.7

sudo rm -rf  /usr/bin/python3

sudo ln -s  /usr/bin/python3.7 /usr/bin/python3

---

 pip3 install ninja 失败找不到ninja

更新python源：

1. 切换到根目录下

   $ cd ~

2. 新建.pip目录并进入

   $ mkdir .pip
   $ cd .pip

3. 新建pip.conf文件并用vim打开

   $ touch pip.conf
   $ vim pip.conf

4. 将以下写入

[global]index-url = https://artsz.zte.com.cn/artifactory/api/pypi/public-pypi-virtual/simple[install]trusted-host=artsz.zte.com.cn

5. 重新安装

sudo apt-get install python3-pip

sudo pip3 install meson

sudo pip3 install ninja