linux中安装python3

备份并替换阿里源

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tar -zcvf CentOS-bk.tar.gz /etc/yum.repos.d/CentOS-*
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curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
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curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

安装依赖

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yum -y groupinstall "Development tools"
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yum install -y ncurses-devel gdbm-devel xz-devel sqlite-devel tk-devel uuid-devel readline-devel bzip2-devel libffi-devel
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yum install -y openssl-devel openssl11 openssl11-devel

下载python 网地址:https://www.python.org/

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mkdir -p /doc/temp && cd /doc/temp
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wget https://www.python.org/ftp/python/3.10.4/Python-3.10.4.tgz

编译

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export CFLAGS=$(pkg-config --cflags openssl11)
export LDFLAGS=$(pkg-config --libs openssl11)

解压编译安装

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tar xvzf Python-3.10.4.tgz
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cd Python-3.10.4
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./configure --enable-optimizations && make altinstall

验证

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/usr/local/bin/python3.10 --version
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/usr/local/bin/pip3.10 --version

配置

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ln -sf /usr/local/bin/python3.10 /usr/bin/python3
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ln -sf /usr/local/bin/pip3.10  /usr/bin/pip3

pip源

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mkdir -p ~/.pip
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touch ~/.pip/pip.conf

编辑配置文件

vim ~/.pip/pip.conf

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```python
[global]
index-url=https://pypi.tuna.tsinghua.edu.cn/simple/
extra-index-url=
        http://pypi.douban.com/simple/
        http://mirrors.aliyun.com/pypi/simple/
#proxy = [user:passwd@]proxy.server:port
[install]
trusted-host=
        pypi.tuna.tsinghua.edu.cn
        pypi.douban.com
        mirrors.aliyun.com
ssl_verify: false

上面配置了清华，豆瓣，阿里的源，并且关闭了ssl验证。当然如果有需要还可以设置代理,把注释掉的proxy那行放开即可。

再验证一下

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pip3 install --upgrade pip