from os import system as sys

def pyqi():   
    if __name__ == __main__ :
        version = 0
        x = 0
        py = 0
        print("Pyqi v1.0-beta")
        print("请输入您要安装的Python版本:")
        print("[1]Python3.7")
        print("[2]Python3.8")
        print("[3]Python3.9")
        print("===========================")
        version = int(input(">>> "))
        x = input("是否继续?(y/n):")
        if x == "y" :
            print("正在下载Python")
            if version == 1 :
                print("开始安装")
            elif x == "n" :
                exit("用户取消进程")
        if version == 1 :
            sys("cd /usr/local/")
            sys("mkdir python3")
            sys("curl -O https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tgz")
            sys("tar xvf python-3.7.1.tgz")
            sys("cd python-3.7.1")
            sys("./configure --prefix=/usr/local/python3")
            sys("sudo make install")
        elif version == 2 :
            sys("cd /usr/local/")
            sys("mkdir python3")
            sys("curl -O https://www.python.org/ftp/python/3.8.1/Python-3.8.1.tgz")
            sys("tar xvf python-3.8.1.tgz")
            sys("cd python-3.8.1")
            sys("./configure --prefix=/usr/local/python3")
            sys("sudo make install")
        elif version == 3 :
            sys("cd /usr/local/")
            sys("mkdir python3")
            sys("curl -O https://www.python.org/ftp/python/3.9.1/Python-3.9.1.tgz")
            sys("tar xvf python-3.9.1.tgz")
            sys("cd python-3.9.1")
            sys("./configure --prefix=/usr/local/python3")
            sys("sudo make install")
