# python3 -> python

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 10

# pip3 -> pip

sudo apt-get update

sudo apt-get install -y python3-pip

sudo update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 1

# port forwarding

sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 5000

입력을 했는데 오류가 난 것 같아요

0 upgraded, 0 newly installed, 0 to remove and 31 not upgraded.

ubuntu@ip-172-31-35-120:~$ sudo update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 1

update-alternatives: warning: forcing reinstallation of alternative /usr/bin/pip3 because link group pip is broken

update-alternatives: warning: not replacing /usr/bin/pip with a link

ubuntu@ip-172-31-35-120:~$ sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 10

ubuntu@ip-172-31-35-120:~$ sudo apt-get update

Hit:1 http://ap-northeast-2.ec2.archive.ubuntu.com/ubuntu jammy InRelease

Hit:2 http://ap-northeast-2.ec2.archive.ubuntu.com/ubuntu jammy-updates InRelease

Hit:3 http://ap-northeast-2.ec2.archive.ubuntu.com/ubuntu jammy-backports InRelease

Hit:4 http://security.ubuntu.com/ubuntu jammy-security InRelease

Reading package lists... Done

ubuntu@ip-172-31-35-120:~$ sudo apt-get install -y python3-pip

Reading package lists... Done

Building dependency tree... Done

Reading state information... Done

python3-pip is already the newest version (22.0.2+dfsg-1).

0 upgraded, 0 newly installed, 0 to remove and 31 not upgraded.

ubuntu@ip-172-31-35-120:~$ sudo update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 1

update-alternatives: warning: forcing reinstallation of alternative /usr/bin/pip3 because link group pip is broken

update-alternatives: warning: not replacing /usr/bin/pip with a link

ubuntu@ip-172-31-35-120:~$ sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 5000

ubuntu@ip-172-31-35-120:~$