I want to upload my files based on the example Need a minimal Django file upload example, however I want to store the files not locally, but on another server with the use of FT
It looks like your import is wrong. If the file is named ftp.py the import should be:
ftp.py
from ftp import FTPStorage
Depending on where the file is relatively to your PYTHONPATH you might need to add more, e.g.:
from your_app.ftp import ...