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Changelog

.. py:currentmodule:: pngglitch

Version 1.1.0

Released July 19, 2019

  • Switch license from GPL 2.0 to Apache.

  • Make project compatible with setuptools.

    This means it is now possible to install Pngglitch via python setup.py install.

  • Use Sphinx for documentation.

  • Fix bogus null-byte escape sequence in GlitchedPNGFile.fill_zeros().

  • Fix self-modification bug in GlitchedPNGFile.random_glitches().

    The iterator would modify the original PNG file even though there is no necessity for it. Now, self stays unmodified throughout the iteration.

  • Fix missing verification of the PNG header in files loaded via PNGFile.

    Now, files that don't have the magic PNG header are always rejected.

  • Fix missing verification of chunk type length in Chunk constructor.

    The constructor now ensures that the passed type is exactly four bytes long.

  • Fix buggy end-of-file detection in PNGFile.

    The contructor would stop loading chunks as soon as it encountered a chunk without paylod. Now it correctly stops only when the IEND chunk is encountered.

  • Deprecate fragile attributes of Chunk.

    The attributes ~Chunk.length, ~Chunk.crc and ~Chunk.raw_data are technically public, but modifying them easily leads to an inconsistent chunk state. They are deprecated in favor of the ~Chunk.data property.

Version 1.0.1

Released March 3, 2014

  • Remove unnecessary imports from modules collections and string.

Version 1.0.0

Released March 3, 2014

This is the initial version.