storage.py

import unicodedata

from django.core.files.storage import FileSystemStorage


class ASCIIFileSystemStorage(FileSystemStorage):
    """
    Convert unicode characters in name to ASCII characters.
    """

    def get_valid_name(self, name):
        name = unicodedata.normalize("NFKD", name).encode("ascii", "ignore")
        return super().get_valid_name(name)