Install cert-issuer

we downloaded cert-issuer from a terminal.

https://github.com/blockchain-certificates/cert-issuer

To create the certificates after editing the conf.ini and buying bitcoins, we execute the following commands:

setting python 3.6:

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.6 2

sudo apt update

sudo apt install python3-pip

sudo apt-get install virtualenv

cd cert-issuer

virtualenv venv

source ./venv/bin/activate

pip3 install .

I run the command to create the certificate and I get this error: