.. _deprecations:

Deprecations and removals
=========================

This page lists Pillow features that are deprecated, or have been removed in
past major releases, and gives the alternatives to use instead.

Deprecated features
-------------------

Below are features which are considered deprecated. Where appropriate,
a ``DeprecationWarning`` is issued.

PyQt4 and PySide
~~~~~~~~~~~~~~~~

.. deprecated:: 6.0.0

Qt 4 reached end-of-life on 2015-12-19. Its Python bindings are also EOL: PyQt4 since
2018-08-31 and PySide since 2015-10-14.

Support for PyQt4 and PySide has been deprecated from ``ImageQt`` and will be removed in
a future version. Please upgrade to PyQt5 or PySide2.

PIL.*ImagePlugin.__version__ attributes
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. deprecated:: 6.0.0

The version constants of individual plugins have been deprecated and will be removed in
a future version. Use ``PIL.__version__`` instead.

===============================  =================================  ==================================
Deprecated                       Deprecated                         Deprecated
===============================  =================================  ==================================
``BmpImagePlugin.__version__``   ``Jpeg2KImagePlugin.__version__``  ``PngImagePlugin.__version__``
``CurImagePlugin.__version__``   ``JpegImagePlugin.__version__``    ``PpmImagePlugin.__version__``
``DcxImagePlugin.__version__``   ``McIdasImagePlugin.__version__``  ``PsdImagePlugin.__version__``
``EpsImagePlugin.__version__``   ``MicImagePlugin.__version__``     ``SgiImagePlugin.__version__``
``FliImagePlugin.__version__``   ``MpegImagePlugin.__version__``    ``SunImagePlugin.__version__``
``FpxImagePlugin.__version__``   ``MpoImagePlugin.__version__``     ``TgaImagePlugin.__version__``
``GdImageFile.__version__``      ``MspImagePlugin.__version__``     ``TiffImagePlugin.__version__``
``GifImagePlugin.__version__``   ``PalmImagePlugin.__version__``    ``WmfImagePlugin.__version__``
``IcoImagePlugin.__version__``   ``PcdImagePlugin.__version__``     ``XbmImagePlugin.__version__``
``ImImagePlugin.__version__``    ``PcxImagePlugin.__version__``     ``XpmImagePlugin.__version__``
``ImtImagePlugin.__version__``   ``PdfImagePlugin.__version__``     ``XVThumbImagePlugin.__version__``
``IptcImagePlugin.__version__``  ``PixarImagePlugin.__version__``
===============================  =================================  ==================================

Setting the size of TIFF images
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. deprecated:: 5.3.0

Setting the image size of a TIFF image (eg. ``im.size = (256, 256)``) issues
a ``DeprecationWarning``:

.. code-block:: none

    Setting the size of a TIFF image directly is deprecated, and will
    be removed in a future version. Use the resize method instead.

PILLOW_VERSION and VERSION constants
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. deprecated:: 5.2.0

Two version constants – ``VERSION`` (the old PIL version, always 1.1.7) and
``PILLOW_VERSION`` – have been deprecated and will be removed in the next
major release. Use ``__version__`` instead.

Removed features
----------------

Deprecated features are only removed in major releases after an appropriate
period of deprecation has passed.

Undocumented ImageOps functions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

*Removed in version 6.0.0.*

Several undocumented functions in ``ImageOps`` have been removed. Use the equivalents
in ``ImageFilter`` instead:

==========================  ============================
Removed                     Use instead
==========================  ============================
``ImageOps.box_blur``       ``ImageFilter.BoxBlur``
``ImageOps.gaussian_blur``  ``ImageFilter.GaussianBlur``
``ImageOps.gblur``          ``ImageFilter.GaussianBlur``
``ImageOps.usm``            ``ImageFilter.UnsharpMask``
``ImageOps.unsharp_mask``   ``ImageFilter.UnsharpMask``
==========================  ============================

PIL.OleFileIO
~~~~~~~~~~~~~

*Removed in version 6.0.0.*

PIL.OleFileIO was removed as a vendored file and in Pillow 4.0.0 (2017-01) in favour of
the upstream olefile Python package, and replaced with an ``ImportError`` in 5.0.0
(2018-01). The deprecated file has now been removed from Pillow. If needed, install from
PyPI (eg. ``pip install olefile``).