Centos 7 安装pyenv及python 3.8+版本

安装必要依赖

yum -y install gcc make patch gdbm-devel openssl-devel sqlite-devel readline-devel zlib-devel bzip2-devel git

Pyenv安装

curl https://pyenv.run | bash

配置pyenv到path环境变量

安装完成后会看到最后的内容为：

WARNING: seems you still have not added 'pyenv' to the load path.

# Load pyenv automatically by appending
# the following to 
# ~/.bash_profile if it exists, otherwise ~/.profile (for login shells)
# and ~/.bashrc (for interactive shells) :

export PYENV_ROOT="$HOME/.pyenv"
[[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"

# Restart your shell for the changes to take effect.

# Load pyenv-virtualenv automatically by adding
# the following to ~/.bashrc:

eval "$(pyenv virtualenv-init -)"

修改用户目录下的.bash_profile文件确保用户登录时初始化pyenv

cat << 'EOF' >> .bash_profile
# Load pyenv automatically by appending
# the following to 
# ~/.bash_profile if it exists, otherwise ~/.profile (for login shells)
# and ~/.bashrc (for interactive shells) :

export PYENV_ROOT="$HOME/.pyenv"
[[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"

# Restart your shell for the changes to take effect.

# Load pyenv-virtualenv automatically by adding
# the following to ~/.bashrc:

eval "$(pyenv virtualenv-init -)"
EOF

重新加载.bash_profile文件

source .bash_profile

使用pyenv安装python3.8+版本报错openssl 1.1.1问题

安装openss11依赖

yum install openssl11-devel
yum swap openssl-devel openssl11-devel

安装前指定使用的openssl

RHEL6:

CPPFLAGS=-I/usr/include/openssl \
LDFLAGS=-L/usr/lib64 \
pyenv install -v 3.4.3

CentOS 7 with OpenSSL 1.1.1:

CPPFLAGS="$(pkg-config --cflags openssl11)" \
LDFLAGS="$(pkg-config --libs openssl11)" \
pyenv install -v 3.10.6

Arch Linux:

LDFLAGS="-L/usr/lib/openssl-1.0" \
CPPFLAGS="-I/usr/include/openssl-1.0" \
pyenv install -v 3.4.3

If you installed openssl with macports:

CPPFLAGS="-I/opt/local/include/" \
LDFLAGS="-L/opt/local/lib/" \
pyenv install -v 3.4.3