======
Barril
======
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What is Barril?
===============
Python package to manage units for physical quantities.
Quick example:
.. code-block:: python
from barril.units import Scalar
s1 = Scalar(10, "m")
s2 = Scalar(500, "cm")
assert s1 + s2 == Scalar(15, "m")
Features
--------
* Pre-defined unit database containing several physical quantities for the Oil & Gas industry.
* Data types with an associated unit: ``Scalar``, ``Array``, ``Quantity``, ``FixedArray``.
* Automatic conversion during arithmetic operations.
Development
-----------
For complete description of what type of contributions are possible,
see the full `CONTRIBUTING <CONTRIBUTING.rst>`_ guide.
Here is a quick summary of the steps necessary to setup your environment to contribute to ``barril``.
#. Create a virtual environment and activate it::
$ python -m virtualenv .env
$ .env\Scripts\activate # windows
$ source .env/bin/activate # linux
.. note::
If you use ``conda``, you can install ``virtualenv`` in the root environment::
$ conda install -n root virtualenv
Don't worry as this is safe to do.
#. Update ``pip``::
$ python -m pip install -U pip
#. Install development dependencies::
$ pip install -e .[testing]
#. Install pre-commit::
$ pre-commit install
#. Run tests::
$ pytest --pyargs barril
#. Generate docs locally::
$ tox -e docs
The documentation files will be generated in ``docs/_build``.
Release
-------
A reminder for the maintainers on how to make a new release.
Note that the VERSION should folow the semantic versioning as X.Y.Z
Ex.: v1.0.5
1. Create a ``release-VERSION`` branch from ``upstream/master``.
2. Update ``CHANGELOG.rst``.
3. Push a branch with the changes.
4. Once all builds pass, push a ``VERSION`` tag to ``upstream``.
5. Merge the PR.
Credits
-------
This package was created with Cookiecutter_ and the `audreyr/cookiecutter-pypackage`_ project template.
.. _`audreyr/cookiecutter-pypackage`: https://github.com/audreyr/cookiecutter-pypackage
.. _`GitHub page` : https://github.com/ESSS/barril
.. _Cookiecutter: https://github.com/audreyr/cookiecutter
.. _pytest: https://github.com/pytest-dev/pytest
.. _tox: https://github.com/tox-dev/tox
1.16.0 (2023-04-26)
-------------------
* Add more units for ``mole per mass`` quantity.
* Define a ``molality`` category.
1.15.0 (2023-04-03)
-------------------
* Add ``cubic meter per day per kilogram-force per square centimeter`` (``m3/d/kgf/cm2``) unit to ``productivity index`` category.
* Add gauge pressures units ``Pa(g)``, ``kPa(g)``, ``bar(g)``, and ``kgf/cm2(g)`` to ``pressure`` category.
1.14.1 (2022-11-03)
-------------------
* Add ``mole per mass`` quantity (``mol/kg``).
1.13.0 (2021-11-30)
-------------------
* Update ``Newton second per meter`` unit from ``Ns/m`` to ``N.s/m`` to get unit display consistent with other units in the same category (support for the old unit input added).
* Add ``force per velocity squared`` quantity (``N.s2/m2``, ``lbf.s2/ft2``, ``lbf.s2/in2``, ``kgf.s2/m2``).
1.12.0 (2021-11-08)
-------------------
* ``barril`` is now fully type annotated, being tested with ``mypy``.
* ``Array`` and ``FixedArray`` are ``Generic`` subclasses, parametrized by the container type.
1.11.1 (2021-10-08)
-------------------
* Fixed typos in unit names: ``kilkodynes`` (unit=kdyne) fixed to ``kilodynes``, ``killowatts/cubic metre degree Kelvin`` (unit=kW/m3.K) fixed to ``kilowatts/cubic metre degree Kelvin``.
1.11.0 (2021-06-18)
-------------------
* Add new unit: "Stokes" (``St``).
* Use ``TypeCheckingSupport`` from ``oop-ext 1.1``.
* Add ``cubic feet per day per psi`` (``ft3/psi.d``) unit to ``productivity index`` category.
* Add ``calories/metre hour degree Celsius`` (``cal/m.h.degC``) unit to ``thermal conductivity`` category.
* Add ``calorie/hour square metre deg C`` (``cal/h.m2.degC``) unit to ``heat transfer coefficient`` category.
* Add ``std cubic metres/second`` (``sm3/s``) unit to ``standard volume per time`` category.
* Add ``million std cubic feet/stock tank barrel`` (``MMscf/stb``), ``stock tank barrel/std cubic feet`` (``stb/scf``) and ``stock tank barrel/million std cubic feet`` (``stb/MMscf``) units to ``standard volume per standard volume`` category.
1.10.0 (2020-10-22)
-------------------
* Removing ``thermodynamic temperature`` as default category for ``degF`` and ``degR`` units.
1.9.0 (2020-02-20)
------------------
* New ``classmethod`` ``Array.FromScalars`` that creates an ``Array`` from a ``List[Scalar]``.
* Add new unit: "barrel per second" (``bbl/s``).
1.8.0 (2020-01-10)
------------------
* Add new category: "standard volume per standard volume".
* Move unit ``sm3/sm3`` from "volume per volume" to "standard volume per standard volume".
1.7.2 (2019-10-16)
------------------
* ``_foundation`` has been renamed to ``_util``, and a lot of functions which were not being
used anymore have been removed.
* Add new unit category mass temperature per mol (``kg.K/mol``).
* Some units have been renamed as they were deemed out-of-place in the oil industry to something more usual (for example, ``1000ft3/d`` became ``Mcf/d``).
The old representation of those units is still supported, but they will be automatically translated during ``Quantity`` creation, so this change should not affect users much.
* Fix division ``1.0 / a`` where ``a`` is a ``Scalar`` or ``Array`` and also add support for floor
division, i.e., operations like ``a // b`` where ``a`` and ``b`` are ``Scalar`` or ``Array``
(and combinations with ``float`` or ``int``).
* Add new unit category for Joule-Thomson coefficient (``K/Pa``).
* Add new temperature unit for density derivative in respect to temperature (``kg/m3.K``).
1.7.1 (2019-10-03)
------------------
* Fixed bug in ``/`` and ``-`` operators for ``FixedArray``.
1.7.0 (2019-06-18)
------------------
* Add unit system.
1.6.1 (2019-04-11)
------------------
* Change export to include ICurve and Curve and exclude IReadOnlyScalar.
1.6.0 (2019-04-10)
------------------
* Add curve implementation.
* Add support to interfaces from oop-ext.
* Drop support to Python 2.
1.5.0 (2019-01-09)
------------------
* ``Quantity.CheckValue`` now raises ``QuantityValidationError`` instead of ``ValueError``.
1.4.0 (2018-12-17)
------------------
* Add new category for "concentration ratio".
1.3.0 (2018-10-13)
------------------
* Add "per micrometre" unit to "per length" category.
* Remove internal ``barril.fixtures`` module as it is not necessary or part of the public API.
1.2.0 (2018-09-26)
------------------
* Add units for defining Spring-Dashpot movements.
1.1.0 (2018-09-24)
------------------
* Add ``number`` and ``fraction`` properties to ``FractionValue``.
* Add ``unit`` read-only property to ``Quantity``.
1.0.0 (2018-09-21)
------------------
* First feature release.
0.1.0 (2018-09-03)
------------------
* First release on PyPI.