Python装置-在Linux零碎中应用编译进行装置

你能够应用Ubuntu自带的Python3，不过你不能自在的管制版本，还要独自装置pip3，如果你想降级pip3，还会呈现一些让人不欢快的应用问题。而在CentOS零碎中，默认只有Python2，通过yum装置Python3，也同样面临版本落后以及pip3的问题。如果不本人编译装置，还有什么别的办法来始终放弃应用最新的版本呢？！除非你用Win零碎。

You can use the Python3 that comes with Ubuntu, but you can't control the version freely. You have to install pip3 separately. If you want to upgrade pip3, there will be some unpleasant usage problems. In the CentOS system, there is only Python2 by default. Installing Python3 through yum also faces the problems of backward version and pip3. If you don’t compile and install it yourself, what other methods are there to keep using the latest version? ! Unless you use Win system.

在CentOS中装置Python3须要的依赖库

Install the dependency libraries required by Python3 in CentOS

sudo yum install zlib-devel bzip2-developenssl-devel ncurses-devel sqlite-devel readline-devel tk-devel libffi-develexpat-devel gdbm-devel xz-devel db4-devel libpcap-devel make

在Ubuntu中装置Python3须要的依赖库

Install the dependency libraries required by Python3 in Ubuntu

$ sudo apt install libreadline-gplv2-devlibncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libbz2-devzlib1g-dev libffi-dev liblzma-dev

装置GCC

Install GCC

CentOS的minimal版本，以及Ubuntu，都没有预装gcc，如果你用的是这两个版本，须要确保零碎有gcc编译器能够应用。装置和查看gcc的办法：

The minimal version of CentOS and Ubuntu do not have gcc pre-installed. If you are using these two versions, you need to make sure that the system has a gcc compiler that can be used. How to install and view gcc:

$ sudo yum install gcc  # install gcc in centos$ sudo apt install gcc  # install gcc in ubuntu$ which gcc # check if gcc is there$ gcc --version  # check gcc version

下载Python3源码并解压

Download the Python3 source code and unzip it

Python3的官网源码下载页面是：https://www.python.org/downlo...

The official source code download page of Python3 is:

https://www.python.org/downlo...



应用curl或wget下载，而后解压：

Use curl or wget to download, and then unzip:

Wget https://www.python.org/ftp/python/3.9.2/Python-3.9.2.tgztar xvf Python-3.9.2.tgz

执行configure

Execute configure

进入上一步的解压目录，而后执行configure：

Enter the unzipped directory of the previous step, and then execute configure:

$ cd Python-3.7.3$ ./configure --prefix=/usr/local/python-3.9.2

make和install

make and install

最初，咱们执行make和install的指令。

Finally, we execute the make and install instructions.

$ make && sudo make install

make install 前要有sudo，因为咱们在configure的时候，指定的装置门路为零碎门路，不是用户的/home/user门路。

There must be sudo before make install, because when we configure, the specified installation path is the system path, not the user's /home/user path.

ln -s /usr/local/python-3.9.2/bin/python3.9/usr/bin/python3ln -s /usr/local/python-3.9.2/bin/pip3.9/usr/bin/pip3