Django Filebrowser: Modifing the convert_filename function, to create a file name free of undesired chars.

functions_1.py

def convert_filename(value):
    """
    Convert Filename.
    """

    def newname(text, encoding=None):
        from unicodedata import normalize
        if isinstance(text, str):
            text = text.decode(encoding or 'ascii')
        clean_text = text.strip().replace(' ', '-')
        while '--' in clean_text:
            clean_text = clean_text.replace('--', '-')
        ascii_text = normalize('NFKD', clean_text).encode('ascii', 'ignore')
        return ascii_text.lower()

    if CONVERT_FILENAME:
        return newname(value)
    else:
        return value

functions_2.py

def convert_filename(value):
    """
    Convert Filename.
    """

    def newname(name, encoding=None):
        from uuid import uuid4
        return ''.join(str(uuid4()).split('-')) + '.' + name.split('.')[-1].lower()

    if CONVERT_FILENAME:
        return newname(value)
    else:
        return value