Install libftp-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libftp-dev
Description:
Library of callable ftp routines (development)
Ftplib makes it easier for C programmers to use file transfer in their programs. This package is required to compile and link programs that use ftplib. It includes an example command line utility for transferring files via ftp (RFC959).
Homepage: http://nbpfaus.net/~pfau/ftplib/
Version: 4.0-1-3
Section: universe/libdevel