The method os.link(src, dst) creates a hard link pointing to src named dst. This method is very useful to create a copy of existing file.
For example, if you have a file called photo.jpg and want to create a hard link to it called my_photo.jpg, then you could simply use:
>>> import os >>> os.link('photo.jpg', 'my_photo.jpg')
Now if you list the files in that directory, you'll get the my_photo