Python is not good at managing dependencies. If you use the default package installer, pip, or pip3 to install Python libraries and packages, it will install the packages globally. As Linux comes with a preinstalled version of Python and uses different packages to run the operating system, man...
根据提示 ,配置环境变量,把/usr/local/python3/bin:/usr/local/python3/bin 添加进/etc/profile里面。 [root@slave2 opt]# vim /etc/profile export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/git/bin:/usr/local/python3/bin:/usr/local/python3/bin export ...
Step 2:A pop-up window,Python Version3.13.2 (32-bit) Setup, will appear. In this window, ensure that you check the boxes for both ‘Install launcher for all users (recommended)’ and ‘Add Python 3.13.2 to PATH’ at the bottom. Step 3:Now, a User Account Control pop-up window wi...
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1 sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.7 2 sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.8 3 sudo update-alternatives --install /usr/bin/python pyt...
Now, if that's all you need, you are set. If you want to update to a later version of Python, however, you can install several versions of Python and run them side-by-side. For example, you can run Python versions 3.6, 3.8, and 3.9 by simply using a different command :python3.6...
$ easy_install pip Virtual Environments（虚拟环境）A Virtual Environment is a tool to keep the dependencies required by different projects in separate places, by creating virtual Python environments for them. It solves the “Project X depends on version 1.x but, Project Y needs 4.x” dilemma,...
Step 2: Install the Latest Python Version on Ubuntu We'll cover two methods here. If you want a quick and simple method, go with the first one. If you're more comfortable building software from source files, use the second method. ...
Python 2 and 3 can safely be installed together. They install most of their files in different locations. So if the prefix is/usr/local, you'll find the library files in/usr/local/lib/pythonX.Y/whereX.Yare the major and minor version numbers. ...
1.Downgrading Python on Windows 2.Uninstall the current Python version 3.Install desired Python version 4.Downgrading Python on Linux 5.Using update-alternatives 6.Using pyenv 7.Downgrading Python on macOS 8.Using brew 9.Using pyenv 10.Common Problems and Solutions ...
When $PYTHONHOME is set to a single directory, its value replaces both ${prefix} and ${exec_prefix}. To specify different values for these, set $PYTHONHOME to ${prefix}:${exec_prefix}. PYTHONPATH Augments the default search path for module files. The format is the same as the shell...