How to install python under linux

How to install python under linux?

Installing python under linux

Steps to compile and install python3.6

(Video tutorial recommendation:python video tutorial)

1. Download the python3 source code package

wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tgz

2. Download the dependency package compiled by python3

yum install -y gcc patch libffi-devel python-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

3. Unzip the source code package

tar -zxvf Python-3.6.6.tgz

4. Enter the source package folder

cd Python-3.6.6

5. Compile and install

1. Enter the source package directory

2.ls View the source package content

3. Release the compiled file Makefile

./configure --prefix=/opt/python36 # 指定安装目录为/opt/python36

4 .Compile

make # 相当于把源码包里面的代码编译成linux服务器可以识别的代码

5. Compile and install, this step will finally generate /opt/python36/

make install

Note: Steps 4 and 5 can be executed together, but you need to use && in between Separate

make && make install # 先进行make，执行完成之后，才开始执行make install

and enter the /opt directory to view the python36 folder. The python3 we want is all here

/opt/python36/bin/python3 /opt/python36/bin/pip3 .....

6. Change the path variable of linux and add python3

to modify it /etc/profile system environment variable configuration file, add the following content

vim /etc/profile

~/.bash_profile # 这个是用户环境变量配置文件 /etc/profile # 系统环境变量配置文件 PATH=/opt/python36/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

Note: Be sure to put the python3 directory in the first

7. In order to permanently take effect the path setting, add it to the /etc/profile global environment variable configuration file and reload the configuration file /etc/profile

source /etc/profile

8 .Enter pyhon3

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