|  |  |  |  | 
| Nautilus.ColumnProviderNautilus.ColumnProvider — Nautilus.ColumnProvider Reference | 
        If subclassed, Nautilus will request a list of Nautilus.Column 
        objects, which are then displayed when the user is in List mode.
        
        
Nautilus.ColumnProvider 
        will almost always want to sub-class Nautilus.InfoProvider
Example 2. Nautilus.ColumnProvider Example
import os
# A way to get unquote working with python 2 and 3
try:
    from urllib import unquote
except ImportError:
    from urllib.parse import unquote
from gi.repository import GObject, Nautilus
class ColumnExtension(GObject.GObject, Nautilus.ColumnProvider, Nautilus.InfoProvider):
    def __init__(self):
        pass
    
    def get_columns(self):
        return Nautilus.Column(name="NautilusPython::block_size_column",
                               attribute="block_size",
                               label="Block size",
                               description="Get the block size"),
    def update_file_info(self, file):
        if file.get_uri_scheme() != 'file':
            return
        
        filename = unquote(file.get_uri()[7:])
        
        file.add_string_attribute('block_size', str(os.stat(filename).st_blksize))
    get_columns();| Returns : | a list of Nautilus.Column | 
            The get_columns() method returns a list of
            Nautilus.Column.