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        "author": "eight",
        "author_email": "eight04@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 5 - Production/Stable",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: MIT License",
            "Natural Language :: Chinese (Traditional)",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3.5",
            "Programming Language :: Python :: 3.6",
            "Topic :: Multimedia :: Graphics :: Graphics Conversion"
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        "description": "pyAPNG\n======\n\n.. image:: https://travis-ci.org/eight04/pyAPNG.svg?branch=master\n  :target: https://travis-ci.org/eight04/pyAPNG\n\n.. image:: https://readthedocs.org/projects/pyapng/badge/?version=latest\n  :target: http://pyapng.readthedocs.io/en/latest/?badge=latest\n  :alt: Documentation Status\n\nA Python module to deal with APNG file.\n\nFeatures\n--------\n\n- Merge multiple images into one APNG file. (It use Pillow to convert images into PNG format)\n- Read APNG file and extract each frames into PNG file.\n- It doesn't do any optimization but only concat the images. This might be changed in the future.\n\nDependencies\n------------\n\n- `Pillow <https://github.com/python-pillow/Pillow>`__ - **Optional**. You can still use pyAPNG without PIL but it can only read PNG files.\n\nDevelopment dependencies\n------------------------\n\n- `pngcheck <http://www.libpng.org/pub/png/apps/pngcheck.html>`_\n- See requirements.txt for other dev-dependencies.\n\nInstallation\n------------\n\nFrom `pypi <https://pypi.org/project/apng/>`__::\n\n  pip install apng\n\nUsage\n-----\n\nConvert a series of images into APNG animation:\n\n.. code:: python\n\n  from apng import APNG\n\n  APNG.from_files([\"1.jpg\", \"2.jpg\", \"3.jpg\"], delay=100).save(\"result.png\")\n\nUse different delays:\n\n.. code:: python\n\n  from apng import APNG\n\n  files = [\n    (\"1.jpg\", 100),\n    (\"2.jpg\", 200),\n    (\"3.jpg\", 300)\n  ]\n\n  im = APNG()\n  for file, delay in files:\n    im.append_file(file, delay=delay)\n  im.save(\"result.png\")\n\nExtract frames from an APNG file:\n\n.. code:: python\n\n  from apng import APNG\n\n  im = APNG.open(\"animation.png\")\n  for i, (png, control) in enumerate(im.frames):\n    png.save(\"{i}.png\".format(i=i))\n\nAdd a text chunk to the PNG file:\n\n.. code:: python\n\n  from apng import PNG, make_text_chunk\n\n  im = PNG.open(\"image.png\")\n  im.chunks.append(make_text_chunk(key=\"Comment\", value=\"Some text\"))\n  im.save(\"image.png\")\n\nPerformance\n-----------\n\nIf you want to convert some large JPGs into animation, the library has to convert your JPGs into PNGs then merge them into a single animation APNG file. The problems are:\n\n1. It is extremely slow.\n2. The file size of the APNG is extremely large. Probably 5x of the original or more.\n\nIn this case, I suggest trying an animation format called \"ugoira\", which is implemented by Pixiv.net. There is also an image viewer named \"HoneyView\" which can view it locally.\n\nDocument\n---------\n\nhttp://pyapng.readthedocs.io/en/latest/\n\nTodos\n-----\n\n- Add optimizer?\n\nChangelog\n---------\n\n- 0.3.3 (Feb 11, 2019)\n\n  - Fix: failed to extract frames containing multiple ``fdAT`` chunks.\n\n- 0.3.2 (Jul 20, 2018)\n\n  - Add: ``make_text_chunk`` function.\n  - Add: ``Chunk`` data class.\n  - Change: now ``parse_chunks`` yields ``Chunk`` instead of a tuple. This should be safe since ``Chunk`` is a namedtuple.\n\n- 0.3.1 (May 13, 2018)\n\n  - Add: universal wheel.\n\n- 0.3.0 (May 13, 2018)\n\n  - Support Python 2.\n  - Add: PNG method ``open_any``, ``from_bytes``.\n  - Add: APNG method ``append_file``, ``from_bytes``.\n  - Add: module function ``parse_chunks``.\n  - **Drop: module function `is_png` and `chunks`.**\n  - **Change: `PNG.open` now only reads PNG images. To read non-PNG images, use `PNG.open_any`.**\n  - **Change: `APNG.append` now only accepts `PNG` instance. To append PNG files, use `APNG.append_file`.**\n\n- 0.2.1 (Apr 19, 2018)\n\n  - Add: support num_plays. (`#4 <https://github.com/eight04/pyAPNG/issues/4>`_)\n\n- 0.2.0 (Dec 8, 2017)\n\n  - Add test.\n  - Add documents.\n  - Add: support path-like object.\n  - Fix: some chunks must appear before IDAT. (`#1 <https://github.com/eight04/pyAPNG/issues/1>`_)\n  - Fix: change chunks order in APNG. Some chunks are moved to the end of the file.\n  - Fix: remove tRNS hack.\n  - Fix: is_png shouldn't move file pointer. (`#2 <https://github.com/eight04/pyAPNG/pull/2>`_)\n\n- 0.1.0 (May 30, 2016)\n\n  - First release.\n\n\n",
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