bidbear / centos6_Python3

centos7_Python3_pip3_scrapy

1. 安装依赖

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 

2. 下载python3安装包

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

3. 解压

tar -xvf Python-3.6.5.tgz

4. 安装依赖

yum install zlib*

5. 进入到解压后的文件夹编译安装

cd Python-3.6.5
./configure --prefix=/usr/local/python3 --enable-optimizations
make && make install

6. 配置软连接

ln -s /usr/local/python3/bin/python3 /usr/bin/python3

7. 转到根目录

输入 python3 看到提示信息表示安装成功

8. 安装setuptools

wget --no-check-certificate  https://pypi.python.org/packages/source/s/setuptools/setuptools-19.6.tar.gz#md5=c607dd118eae682c44ed146367a17e26

tar -zxvf setuptools-19.6.tar.gz

cd setuptools-19.6

python3 setup.py build

python3 setup.py install

9. 设置软链接

ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

如软链接设置错误,删除软链接命令

rm -rf /usr/bin/pip3(后面/usr/bin/pip为软链接名称,切记不能加结尾/ 如:/usr/bin/pip3/则表示删除软连接及真实文件)

10.回到根目录

cd /

输入pip3 -V查看pip版本,安装成功则正确显示版本

11. pip3升级

sudo pip3 install --upgrade pip

12. 安装scrapy

pip3 install scrapy

13. scrapy检查 未找到命令

14. 设置软连接 ln -s /usr/local/python3/bin/scrapy /usr/bin/scrapy

15. scrapy检查

成功