python 安装
1.安装python
参考:https://www.cnblogs.com/hgz-dm/p/11356423.html
官网下载源码:https://www.python.org/downloads/release/python-379/
上传到服务器:/usr/local/Python-3.7.9.tgz
检查是否下载完整文件,与官网的MD5 Sum对比:
[root@cnsz92vl09569 local]# md5sum Python-3.7.9.tgz
解压文件:
[root@cnsz92vl09569 local]# tar -zxvf Python-3.7.9.tgz
[root@cnsz92vl09569 local]# cd Python-3.7.9
安装:
./configure --prefix=/usr/local/python3.7
make && make install
2.配置软链接(这样不必每次启动python时都需要进入其安装路径下启动):
rm -rf /usr/bin/python3.7
rm -rf /usr/bin/pip3
ln -s /usr/local/python3.7/bin/python3.7 /usr/bin/python3.7
ln -s /usr/local/python3.7/bin/pip3.7 /usr/bin/pip3
3.验证是否安装成功:
验证
4.配置python源地址:
pip 的配置文件一般位于(如果没有就新建一个):
Unix/Linux 环境: $HOME/.config/pip/pip.conf
macOS: $HOME/Library/Application Support/pip/pip.conf
Windows: %APPDATA%\pip\pip.ini
5.配置virtualenv:
[root@cnsz92vl09569 pip]# pip3 install virtualenv
5.1.创建目录:
[root@cnsz92vl09569 py_virtualenv]# pwd
/usr/local/py_virtualenv
[root@cnsz92vl09569 py_virtualenv]# cd liuw_project/
[root@cnsz92vl09569 liuw_project]#
5.2.创建一个独立的Python运行环境,命名为liuw_venv:
/usr/local/python3.7/bin/virtualenv --no-site-packages liuw_venv
执行上面那一句会报错virtualenv: error: unrecognized arguments: --no-site-packages
/usr/local/python3.7/bin/virtualenv liuw_venv
rm -rf /usr/bin/virtualenv
ln -s /usr/local/python3.7/bin/virtualenv /usr/bin/virtualenv
virtualenv liuw_venv
5.3.激活虚拟化环境:
source liuw_venv/bin/activate
5.4.安装包:
pip3 list
pip3 install SomePackage
deactivate
deactivate
5.5.退出当前的liuw_venv环境,使用deactivate命令:
(liuw_venv) [root@cnsz92vl09569 site-packages]# deactivate
[root@cnsz92vl09569 site-packages]#
deactivate
安装中遇到的问题:
报错:config:error :no acceptable C compiler found in $PATH(环境里没有安装gcc。)
解决方案:yum install gcc
报错:zipimport.ZipImportError: can't decompress data; zlib not available
解决办法:
yum -y install zlib*
报错:ModuleNotFoundError: No module named '_ssl'
https://www.cnblogs.com/hanfe1/p/13071020.html
pip3 install anaconda
报错:
ModuleNotFoundError: No module named '_ctypes'
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
yum install libffi-devel -y