Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 25831 (do-partial-upgr) code example

Example: E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?

sudo lsof /var/lib/dpkg/lock
sudo lsof /var/lib/apt/lists/lock
sudo lsof /var/cache/apt/archives/lock