paddlex 使用-8 Ubuntu下环境配置

环境使用18.04 LTS

1、准备工作
设置加速cdn 

cd /etc/apt
sudo cp sources.list sources.list.bak
sudo vim sources.list

 　　

删除文件内容再替换为以下内容，vim命令模式 GG dG 可清空

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

sudo apt-get update

2、安装python3.7，现在很简单，直接自动安装。

sudo add-apt-repository ppa:jonathonf/python-3.7

sudo apt-get install python3.7

sudo apt install python3-pip

pip install Cython  -i https://pypi.tuna.tsinghua.edu.cn/simple/

 安装完发现python版本还是3.6.9，需要执行软链接命令

 ln -sf /usr/bin/python3.7 /usr/bin/python

 同样，软链接pip命令

 ln -sf /usr/bin/pip3 /usr/bin/pip

 升级pip

 python -m pip install --upgrade pip

3、和之前一样 安装paddlex我这使用清华的加速稳定一些

pip install paddlex -i https://mirror.baidu.com/pypi/simple

目前这个版本基本不会安装成功，需要做下面两步骤

pip install numpy -i https://mirror.baidu.com/pypi/simple

然后再执行下面这个，因为2.0.2无法自动安装，这个我在ubuntu 20.0.4LTS下无法安装成功。

pip install pycocotools==2.0.0　　

4、然后从新安装paddlex就可以安装成功了

 其它参考系列文章1

https://www.cnblogs.com/zhaogaojian/p/14025913.html