Linux 下升级 Python 版本

Django和Python的版本对应

Debian

下载解压

Python各个版本下载

# 下载
wget https://www.python.org/ftp/python/3.9.1/Python-3.9.1.tgz
# 解压
tar -xzvf Python-3.9.1.tgz

# 配置
apt-get install gcc patch libffi-devel python3-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel -y

# 只当文件夹
mkdir /usr/local/python39

# 生成脚本
cd Python-3.9.1
./configure --with-ssl --prefix=/usr/local/python39
# 编译
make
# 安装
make install

配置

# python
rm /usr/bin/python3    # 删除老版本的关联
ln -s /usr/local/python3.9/bin/python3.9 /usr/bin/python3    # 建立新关联

# pip
rm /usr/local/bin/pip3    # 删除老版本的关联
ln -s /usr/local/python3.9/bin/pip3 /usr/local/bin/pip3    # 建立新关联

虚拟环境

sudo pip3 install virtualenv
sudo pip3 install virtualenvwrapper

sudo vim ~/.bashrc

export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
export WORKON_HOME=$HOME/.virtualenvs
export VIRTUALENVWRAPPER_VIRTUALENV=/usr/local/python39/bin/virtualenv
source /usr/local/python39/bin/virtualenvwrapper.sh

source ~/.bashrc

mkvirtualenv -p /usr/bin/python3 flask       # 指定虚拟环境flask中python解释器来源为/usr/bin/python3
workon [虚拟环境名]    # 进入虚拟环境
deactive    # 退出虚拟环境
rmvirtualenv [虚拟环境名]    # 删除虚拟环境
lsvirtualenv    # 查看已创建的虚拟环境
cdvirtualenv    # 快捷进入虚拟环境目录
cdsitepackages    # 快捷进入虚拟环境包安装目录

报错

Could not find a version that satisfies the requirement setuptools_scm

pip install setuptools-scm

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subprocess.CalledProcessError: Command ‘(‘lsb_release’, ‘-a’)’ returned non-zero exit status 1.

sudo rm /usr/bin/lsb_release