Author: mattip <matti.pi...@gmail.com> Branch: python-numpy Changeset: r56707:8f807206aeb7 Date: 2012-08-11 23:46 +0300 http://bitbucket.org/pypy/pypy/changeset/8f807206aeb7/
Log: add document diff --git a/HOW_TO_CONTRIBUTE.txt b/HOW_TO_CONTRIBUTE.txt new file mode 100644 --- /dev/null +++ b/HOW_TO_CONTRIBUTE.txt @@ -0,0 +1,39 @@ +All the numpy python code has been imported into lib_pypy/numpy, +from a random version of numpy (git version fd15162 to be exact). + +pypy has a builtin module called _numpypy that provides things like +ndarray, dtypes, ufuncs, and binfuncs. + +The branch will be complete when it is possible to run +pypy -c 'import numpy;numpy.test()' and most tests pass. + +The strategy for completing the branch is: +1. Set up pypy and cpython +2. Find missing functionality or a failing test +3. Fix and test + +Currently, 'import numpy' fails, since we are missing the +c-level multiarray module. + +So what we need in the short-term is to implement a python version of +multiarray, work has been begun and it lives in lib_pypy/numpypy/multiarray.py + +And in more detail: +1a. Get a recent trunk version of numpy +1a. Install numpy into python, for extra points use virtualenv, by running 'python setup.py install' in the numpy trunk +1c. Get the source tree for this branch of pypy +1d. Download a nightly build of pypy and put the binary into the source tree, preferably at pypy/translator/goal/pypy. Alternatively, translate pypy +2a. Run 'pypy/translator/goal/pypy -c 'import numpy;numpy.test()' +2b. Something will fail. Poke around to see what the missing function or import is supposed to do. Hint: try http://docs.scipy.org/doc/numpy/reference/index.html +2c. Let us know you are planning to work on this, usually a note on IRC will be sufficient. +2c. Write a test for the missing functionality. For instance, tests for multiarray live in lib_pypy/numpypy/test/test_multiarray.py Try to think of corner cases: inappropriate arguments, missing defaults, and other wierd combination of arguments. +3a. Try to find where numpy implemented it and stare at that till it makes sense. +3b. Write some code +3c. Test under pypy, python, and then think again about the tests, did you miss a corner case? Testing is done by: + pypy/translator/pypy pytest.py lib_pypy/numpypy/test +as well as + python pytest.py lib_pypy/numpypy/test +3d. Rerun 2a to make sure you accomplished what you set out to do +3e. Commit and push your changes, if you are working on a fork let us know what you have done. + + _______________________________________________ pypy-commit mailing list pypy-commit@python.org http://mail.python.org/mailman/listinfo/pypy-commit
