Contributions¶
Contributions to nuts-flow are welcome. Please document the code following
the examples, provide unit tests and ensure that pytest runs without
errors.
Environment¶
You will need git, Python, pytest, Sphinx installed.
Unit tests¶
$ cd nutsflow
$ pytest
============================= test session starts =============================
platform win32 -- Python 2.7.13, pytest-3.0.3, py-1.4.31, pluggy-0.4.0
rootdir: C:\Maet\Projects\Python\nuts-flow, inifile: pytest.ini
plugins: cov-2.3.1
collected 138 items
README.rst .
nutsflow\base.py ..
nutsflow\common.py ....
nutsflow\function.py .........
nutsflow\iterfunction.py ...........
nutsflow\processor.py ...................
nutsflow\sink.py ............
nutsflow\source.py ......
nutsflow\underscore.py .
sphinx\source\installation.rst .
sphinx\source\introduction.rst .
sphinx\source\tutorial\custom_nuts.rst .
sphinx\source\tutorial\debugging.rst .
sphinx\source\tutorial\divide_conquer.rst .
sphinx\source\tutorial\error_messages.rst .
sphinx\source\tutorial\filtering.rst .
sphinx\source\tutorial\nuts_basics.rst .
sphinx\source\tutorial\performance.rst .
sphinx\source\tutorial\practice_problems.rst .
sphinx\source\tutorial\prerequisites.rst .
sphinx\source\tutorial\rearranging.rst .
sphinx\source\tutorial\recipes.rst .
sphinx\source\tutorial\sinks.rst .
sphinx\source\tutorial\sources.rst .
sphinx\source\tutorial\transforming.rst .
sphinx\source\tutorial\underscore.rst .
tests\nutsflow\test_base.py ....
tests\nutsflow\test_common.py ......
tests\nutsflow\test_factory.py .........
tests\nutsflow\test_function.py .........
tests\nutsflow\test_iterfunction.py ...........
tests\nutsflow\test_processor.py ...................................
tests\nutsflow\test_sink.py ................
tests\nutsflow\test_source.py .......
tests\nutsflow\test_underscore.py ..
tests\nutsflow\examples\test_examples.py .
========================= 182 passed in 19.58 seconds =========================
We are aiming at a code coverage of 100%. Run pytest --cov for verification.
$ cd nutsflow
$ pytest --cov
---------- coverage: platform win32, python 2.7.13-final-0 -----------
Name Stmts Miss Cover
---------------------------------------------------
nutsflow\base.py 22 0 100%
nutsflow\common.py 27 0 100%
nutsflow\examples\examples.py 57 0 100%
nutsflow\factory.py 39 0 100%
nutsflow\function.py 69 0 100%
nutsflow\iterfunction.py 65 0 100%
nutsflow\processor.py 160 0 100%
nutsflow\sink.py 85 0 100%
nutsflow\source.py 40 0 100%
nutsflow\underscore.py 26 0 100%
---------------------------------------------------
TOTAL 590 0 100%
Documentation¶
Update Sphinx/HTML documentation as follows
cd sphinx
make clean
make html
make test
cd ..
./push_docs
Style guide¶
Code should be formatted following the PEP-8 style guide.
Names of nuts shoulds be in CamelCase (just like class names) and describe an action,
e.g. ReadCSV but not CSVReader.
Prefer immutable data types, e.g. tuples over lists, for outputs of nuts and avoid nuts with side-effects. Nuts should not *mutate their input data but create copies.
If a nut has no input it should be a source, for instance like Range.
If it doesn’t output a generator or iterator it should be a sink,
see Collect for example.
If a nut outputs the same number of elements it reads, it probably
is a function (e.g. Square) otherwise a processor.