| Name | pillowcases JSON |
| Version |
0.1.0
JSON |
| download |
| home_page | |
| Summary | Library that makes it possible to work in a concise, algebraic way with Python Imaging Library image objects. |
| upload_time | 2023-08-24 19:11:46 |
| maintainer | |
| docs_url | None |
| author | Andrei Lapets |
| requires_python | >=3.7 |
| license | MIT |
| keywords |
|
| VCS |
 |
| bugtrack_url |
|
| requirements |
No requirements were recorded.
|
| Travis-CI |
No Travis.
|
| coveralls test coverage |
No coveralls.
|
===========
pillowcases
===========
Library that makes it possible to work in a concise, algebraic way with Python Imaging Library image objects.
|pypi| |readthedocs| |actions| |coveralls|
.. |pypi| image:: https://badge.fury.io/py/pillowcases.svg
:target: https://badge.fury.io/py/pillowcases
:alt: PyPI version and link.
.. |readthedocs| image:: https://readthedocs.org/projects/pillowcases/badge/?version=latest
:target: https://pillowcases.readthedocs.io/en/latest/?badge=latest
:alt: Read the Docs documentation status.
.. |actions| image:: https://github.com/lapets/pillowcases/workflows/lint-test-cover-docs/badge.svg
:target: https://github.com/lapets/pillowcases/actions/workflows/lint-test-cover-docs.yml
:alt: GitHub Actions status.
.. |coveralls| image:: https://coveralls.io/repos/github/lapets/pillowcases/badge.svg?branch=main
:target: https://coveralls.io/github/lapets/pillowcases?branch=main
:alt: Coveralls test coverage summary.
Installation and Usage
----------------------
This library is available as a `package on PyPI <https://pypi.org/project/pillowcases>`__:
.. code-block:: bash
python -m pip install pillowcases
The library can be imported in the usual way:
.. code-block:: python
import pillowcases
Examples
^^^^^^^^
To use this library, the ``PIL.Image`` module from the `pillow <https://pillow.readthedocs.io/en/stable>`__ library must be imported. If the ``pillowcases`` module is imported afterwards, the ``PIL.Image`` module's ``PIL.Image.Image`` class is redefined to refer to the ``pillowcases.Image`` class (which is itself derived from the ``PIL.Image.Image`` class):
.. code-block:: python
>>> import PIL.Image
>>> import pillowcases
>>> i = PIL.Image.frombytes('RGBA', (2, 2), bytes([0]*16))
>>> isinstance(i, pillowcases.Image)
True
.. |set| replace:: ``set``
.. _set: https://docs.python.org/3/library/stdtypes.html#set
.. |dict| replace:: ``dict``
.. _dict: https://docs.python.org/3/library/stdtypes.html#dict
Because instances of ``pillowcases.Image`` are `hashable <https://docs.python.org/3/glossary.html#term-hashable>`__, they can be added as elements to |set|_ objects and can be used as keys in |dict|_ objects:
.. code-block:: python
>>> j = PIL.Image.frombytes('RGBA', (2, 2), bytes([0]*16))
>>> k = PIL.Image.frombytes('RGBA', (2, 2), bytes([255]*16))
>>> len({i, j, k})
2
>>> d = {j: 1, k: 2}
>>> d[k]
2
Compare the above to the default behavior of the ``PIL.Image.Image`` class, demonstrated below:
.. code-block:: python
>>> from importlib import reload
>>> PIL.Image = reload(PIL.Image)
>>> i = PIL.Image.frombytes('RGBA', (2, 2), bytes([0]*16))
>>> j = PIL.Image.frombytes('RGBA', (2, 2), bytes([0]*16))
>>> j = PIL.Image.frombytes('RGBA', (2, 2), bytes([255]*16))
>>> len({i, j, k})
Traceback (most recent call last):
...
TypeError: unhashable type: 'Image'
Development
-----------
All installation and development dependencies are fully specified in ``pyproject.toml``. The ``project.optional-dependencies`` object is used to `specify optional requirements <https://peps.python.org/pep-0621>`__ for various development tasks. This makes it possible to specify additional options (such as ``docs``, ``lint``, and so on) when performing installation using `pip <https://pypi.org/project/pip>`__:
.. code-block:: bash
python -m pip install .[docs,lint]
Documentation
^^^^^^^^^^^^^
The documentation can be generated automatically from the source files using `Sphinx <https://www.sphinx-doc.org>`__:
.. code-block:: bash
python -m pip install .[docs]
cd docs
sphinx-apidoc -f -E --templatedir=_templates -o _source .. && make html
Testing and Conventions
^^^^^^^^^^^^^^^^^^^^^^^
All unit tests are executed and their coverage is measured when using `pytest <https://docs.pytest.org>`__ (see the ``pyproject.toml`` file for configuration details):
.. code-block:: bash
python -m pip install .[test]
python -m pytest
Alternatively, all unit tests are included in the module itself and can be executed using `doctest <https://docs.python.org/3/library/doctest.html>`__:
.. code-block:: bash
python src/pillowcases/pillowcases.py -v
Style conventions are enforced using `Pylint <https://pylint.readthedocs.io>`__:
.. code-block:: bash
python -m pip install .[lint]
python -m pylint src/pillowcases
Contributions
^^^^^^^^^^^^^
In order to contribute to the source code, open an issue or submit a pull request on the `GitHub page <https://github.com/lapets/pillowcases>`__ for this library.
Versioning
^^^^^^^^^^
The version number format for this library and the changes to the library associated with version number increments conform with `Semantic Versioning 2.0.0 <https://semver.org/#semantic-versioning-200>`__.
Publishing
^^^^^^^^^^
This library can be published as a `package on PyPI <https://pypi.org/project/pillowcases>`__ by a package maintainer. First, install the dependencies required for packaging and publishing:
.. code-block:: bash
python -m pip install .[publish]
Ensure that the correct version number appears in ``pyproject.toml``, and that any links in this README document to the Read the Docs documentation of this package (or its dependencies) have appropriate version numbers. Also ensure that the Read the Docs project for this library has an `automation rule <https://docs.readthedocs.io/en/stable/automation-rules.html>`__ that activates and sets as the default all tagged versions. Create and push a tag for this version (replacing ``?.?.?`` with the version number):
.. code-block:: bash
git tag ?.?.?
git push origin ?.?.?
Remove any old build/distribution files. Then, package the source into a distribution archive:
.. code-block:: bash
rm -rf build dist src/*.egg-info
python -m build --sdist --wheel .
Finally, upload the package distribution archive to `PyPI <https://pypi.org>`__:
.. code-block:: bash
python -m twine upload dist/*
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"description": "===========\r\npillowcases\r\n===========\r\n\r\nLibrary that makes it possible to work in a concise, algebraic way with Python Imaging Library image objects.\r\n\r\n|pypi| |readthedocs| |actions| |coveralls|\r\n\r\n.. |pypi| image:: https://badge.fury.io/py/pillowcases.svg\r\n :target: https://badge.fury.io/py/pillowcases\r\n :alt: PyPI version and link.\r\n\r\n.. |readthedocs| image:: https://readthedocs.org/projects/pillowcases/badge/?version=latest\r\n :target: https://pillowcases.readthedocs.io/en/latest/?badge=latest\r\n :alt: Read the Docs documentation status.\r\n\r\n.. |actions| image:: https://github.com/lapets/pillowcases/workflows/lint-test-cover-docs/badge.svg\r\n :target: https://github.com/lapets/pillowcases/actions/workflows/lint-test-cover-docs.yml\r\n :alt: GitHub Actions status.\r\n\r\n.. |coveralls| image:: https://coveralls.io/repos/github/lapets/pillowcases/badge.svg?branch=main\r\n :target: https://coveralls.io/github/lapets/pillowcases?branch=main\r\n :alt: Coveralls test coverage summary.\r\n\r\nInstallation and Usage\r\n----------------------\r\nThis library is available as a `package on PyPI <https://pypi.org/project/pillowcases>`__:\r\n\r\n.. code-block:: bash\r\n\r\n python -m pip install pillowcases\r\n\r\nThe library can be imported in the usual way:\r\n\r\n.. code-block:: python\r\n\r\n import pillowcases\r\n\r\nExamples\r\n^^^^^^^^\r\n\r\nTo use this library, the ``PIL.Image`` module from the `pillow <https://pillow.readthedocs.io/en/stable>`__ library must be imported. If the ``pillowcases`` module is imported afterwards, the ``PIL.Image`` module's ``PIL.Image.Image`` class is redefined to refer to the ``pillowcases.Image`` class (which is itself derived from the ``PIL.Image.Image`` class):\r\n\r\n.. code-block:: python\r\n\r\n >>> import PIL.Image\r\n >>> import pillowcases\r\n >>> i = PIL.Image.frombytes('RGBA', (2, 2), bytes([0]*16))\r\n >>> isinstance(i, pillowcases.Image)\r\n True\r\n\r\n.. |set| replace:: ``set``\r\n.. _set: https://docs.python.org/3/library/stdtypes.html#set\r\n\r\n.. |dict| replace:: ``dict``\r\n.. _dict: https://docs.python.org/3/library/stdtypes.html#dict\r\n\r\nBecause instances of ``pillowcases.Image`` are `hashable <https://docs.python.org/3/glossary.html#term-hashable>`__, they can be added as elements to |set|_ objects and can be used as keys in |dict|_ objects:\r\n\r\n.. code-block:: python\r\n\r\n >>> j = PIL.Image.frombytes('RGBA', (2, 2), bytes([0]*16))\r\n >>> k = PIL.Image.frombytes('RGBA', (2, 2), bytes([255]*16))\r\n >>> len({i, j, k})\r\n 2\r\n >>> d = {j: 1, k: 2}\r\n >>> d[k]\r\n 2\r\n\r\nCompare the above to the default behavior of the ``PIL.Image.Image`` class, demonstrated below:\r\n\r\n.. code-block:: python\r\n\r\n >>> from importlib import reload\r\n >>> PIL.Image = reload(PIL.Image)\r\n >>> i = PIL.Image.frombytes('RGBA', (2, 2), bytes([0]*16))\r\n >>> j = PIL.Image.frombytes('RGBA', (2, 2), bytes([0]*16))\r\n >>> j = PIL.Image.frombytes('RGBA', (2, 2), bytes([255]*16))\r\n >>> len({i, j, k})\r\n Traceback (most recent call last):\r\n ...\r\n TypeError: unhashable type: 'Image'\r\n\r\nDevelopment\r\n-----------\r\nAll installation and development dependencies are fully specified in ``pyproject.toml``. The ``project.optional-dependencies`` object is used to `specify optional requirements <https://peps.python.org/pep-0621>`__ for various development tasks. This makes it possible to specify additional options (such as ``docs``, ``lint``, and so on) when performing installation using `pip <https://pypi.org/project/pip>`__:\r\n\r\n.. code-block:: bash\r\n\r\n python -m pip install .[docs,lint]\r\n\r\nDocumentation\r\n^^^^^^^^^^^^^\r\nThe documentation can be generated automatically from the source files using `Sphinx <https://www.sphinx-doc.org>`__:\r\n\r\n.. code-block:: bash\r\n\r\n python -m pip install .[docs]\r\n cd docs\r\n sphinx-apidoc -f -E --templatedir=_templates -o _source .. && make html\r\n\r\nTesting and Conventions\r\n^^^^^^^^^^^^^^^^^^^^^^^\r\nAll unit tests are executed and their coverage is measured when using `pytest <https://docs.pytest.org>`__ (see the ``pyproject.toml`` file for configuration details):\r\n\r\n.. code-block:: bash\r\n\r\n python -m pip install .[test]\r\n python -m pytest\r\n\r\nAlternatively, all unit tests are included in the module itself and can be executed using `doctest <https://docs.python.org/3/library/doctest.html>`__:\r\n\r\n.. code-block:: bash\r\n\r\n python src/pillowcases/pillowcases.py -v\r\n\r\nStyle conventions are enforced using `Pylint <https://pylint.readthedocs.io>`__:\r\n\r\n.. code-block:: bash\r\n\r\n python -m pip install .[lint]\r\n python -m pylint src/pillowcases\r\n\r\nContributions\r\n^^^^^^^^^^^^^\r\nIn order to contribute to the source code, open an issue or submit a pull request on the `GitHub page <https://github.com/lapets/pillowcases>`__ for this library.\r\n\r\nVersioning\r\n^^^^^^^^^^\r\nThe version number format for this library and the changes to the library associated with version number increments conform with `Semantic Versioning 2.0.0 <https://semver.org/#semantic-versioning-200>`__.\r\n\r\nPublishing\r\n^^^^^^^^^^\r\nThis library can be published as a `package on PyPI <https://pypi.org/project/pillowcases>`__ by a package maintainer. First, install the dependencies required for packaging and publishing:\r\n\r\n.. code-block:: bash\r\n\r\n python -m pip install .[publish]\r\n\r\nEnsure that the correct version number appears in ``pyproject.toml``, and that any links in this README document to the Read the Docs documentation of this package (or its dependencies) have appropriate version numbers. Also ensure that the Read the Docs project for this library has an `automation rule <https://docs.readthedocs.io/en/stable/automation-rules.html>`__ that activates and sets as the default all tagged versions. Create and push a tag for this version (replacing ``?.?.?`` with the version number):\r\n\r\n.. code-block:: bash\r\n\r\n git tag ?.?.?\r\n git push origin ?.?.?\r\n\r\nRemove any old build/distribution files. 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