1、安装环境
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel gcc-c++ gcc make cmake gcc python-devel openldap-devel sqlite-devel -y
#更新最新的yum
yum update
2、创建文件夹，传入压缩包并解压
mkdir -p /usr/local/devlop/python
wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz
tar -zxvf Python-3.6.5.tgz
3、安装
#创建安装目录并授权
mkdir /usr/local/python3
chmod -R 777 /usr/local/python3/
#进入目录
cd Python-3.6.5
#配置（指定安装目录）
./configure --prefix=/usr/local/python3
#编译、安装(出现报错 更新yum )
yum update
make
make install
4、创建Python3.6.5软链接
ln -sf /usr/local/python3/bin/python3.6 /usr/bin/python
#查询
python -V
6.修改yum功能
vim /usr/bin/yum
第一行修改为
#!/usr/bin/python2.7
vim /usr/bin/yum-config-manager （centos找不到可以跳过此步骤）
#/usr/bin/python2.7
vim /usr/libexec/urlgrabber-ext-down
#/usr/bin/python2.7
python环境至此安装完毕！
7、本项目配置
#1、在/home/resource/socialDistancePython目录传入python脚本的四个文件，将webvideoJson拷如resource目录下
#2、运行/usr/local/python3/bin/python3 /home/resource/socialDistancePython/social_distance_min.py /home/resource/webvideoJson/2020-10-18
#3、判断python库中是否少库——/usr/local/python3/bin/python3 /home/resource/socialDistancePython/social_distance_min.py /home/resource/webvideoJson/2020-10-18
4、解决没有pip
sudo yum remove python-pip
wget https://bootstrap.pypa.io/get-pip.py
python get-pip.py
hash -r
5、缺少numpy 下载-------在同样路径下执行./pip install numpy
6、缺少cv2-----下载 cv2-------在/usr/local/python3/bin路径下执行
./pip install -i https://pypi.douban.com/simple opencv-python
7、缺少tqdm---下载-------在同样路径下执行./pip install tqdm
