File storage API ================ ``Storage.exists(name)`` ~~~~~~~~~~~~~~~~~~~~~~~~ ``True`` if a file exists given some ``name``. ``Storage.path(name)`` ~~~~~~~~~~~~~~~~~~~~~~ The local filesystem path where the file can be opened using Python's standard ``open()``. For storage systems that aren't accessible from the local filesystem, this will raise ``NotImplementedError`` instead. ``Storage.size(name)`` ~~~~~~~~~~~~~~~~~~~~~~ Returns the total size, in bytes, of the file referenced by ``name``. ``Storage.url(name)`` ~~~~~~~~~~~~~~~~~~~~~ Returns the URL where the contents of the file referenced by ``name`` can be accessed. ``Storage.open(name, mode='rb')`` ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Opens the file given by ``name``. Note that although the returned file is guaranteed to be a ``File`` object, it might actually be some subclass. In the case of remote file storage this means that reading/writing could be quite slow, so be warned. ``Storage.save(name, content)`` ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Saves a new file using the storage system, preferably with the name specified. If there already exists a file with this name ``name``, the storage system may modify the filename as necessary to get a unique name. The actual name of the stored file will be returned. The ``content`` argument must be an instance of :class:`django.core.files.File` or of a subclass of :class:`~django.core.files.File`. ``Storage.delete(name)`` ~~~~~~~~~~~~~~~~~~~~~~~~ Deletes the file referenced by ``name``. This method won't raise an exception if the file doesn't exist.