Under Linux, install python3 with one click; suitable for Centos, Debian, Ubuntu, etc.

1. Installation under Centos

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo yum install python36 -y yum install python36-pip -y python3 --version

2. Applicable to various Linux systems

Save the following code as py3.py, and then execute python py3.py

Or execute directly:

wget https://bmvps.com/wp-content/uploads/2019/12/py3.py pythonpy3.py

Here is the code:

#coding=utf-8 import subprocess import os,sys def exe_cmd(cmd): p = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) while True: next_line = p.stdout.readline() return_line = next_line.decode("utf-8", "ignore") if return_line == '' and p.poll() != None: break print(return_line) stdout, stderr = p.communicate() if p.returncode != 0: return False return True def main(): print ("Python 3.7.2 one-click installation begins!") backinfo = exe_cmd('ping -c 1 -w 1 www.baidu.com') if backinfo == False: print ("Network detection failed and the program exited, please check the network environment again!") sys.exit() print ("Network connection is normal!") yum_jc = exe_cmd('yum list') if yum_jc == False: print ("yum is not available, please manually configure yum installation first!") sys.exit() print ('yum installation detection available!') exe_cmd("yum install gcc -y") exe_cmd("yum install openssl-devel bizp2-devel expat-devel gdbm-devel readline-devel sqlite-devel libffi-devel -y") exe_cmd("wget ​​http://npm.taobao.org/mirrors/python/3.7.2/Python-3.7.2.tgz") exe_cmd("tar -zxvf Python-3.7.2.tgz") exe_cmd("mv Python-3.7.2 /usr/local/") exe_cmd("rm -rf Python-3.7.2.tgz") os.chdir('/usr/local/Python-3.7.2') exe_cmd("./configure") exe_cmd("make") exe_cmd("make install") print ("Program execution completed! Enter python3 to see the effect.") if __name__ == '__main__': main()

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