[pypy-commit] pypy numpypy_count_nonzero: Added count_nonzero to numpy
ebsd2
noreply at buildbot.pypy.org
Sun Jul 8 14:31:13 CEST 2012
Author: Anders Lehmann <anders at hih.au.dk>
Branch: numpypy_count_nonzero
Changeset: r55988:8d399faa682a
Date: 2012-07-07 14:29 +0200
http://bitbucket.org/pypy/pypy/changeset/8d399faa682a/
Log: Added count_nonzero to numpy
diff --git a/pypy/module/micronumpy/__init__.py b/pypy/module/micronumpy/__init__.py
--- a/pypy/module/micronumpy/__init__.py
+++ b/pypy/module/micronumpy/__init__.py
@@ -166,4 +166,5 @@
'eye': 'app_numpy.eye',
'max': 'app_numpy.max',
'arange': 'app_numpy.arange',
+ 'count_nonzero': 'app_numpy.count_nonzero',
}
diff --git a/pypy/module/micronumpy/app_numpy.py b/pypy/module/micronumpy/app_numpy.py
--- a/pypy/module/micronumpy/app_numpy.py
+++ b/pypy/module/micronumpy/app_numpy.py
@@ -2,6 +2,10 @@
import _numpypy
+def count_nonzero(a):
+ if not hasattr(a, 'count_nonzero'):
+ a = _numpypy.array(a)
+ return a.count_nonzero()
def average(a):
# This implements a weighted average, for now we don't implement the
diff --git a/pypy/module/micronumpy/interp_numarray.py b/pypy/module/micronumpy/interp_numarray.py
--- a/pypy/module/micronumpy/interp_numarray.py
+++ b/pypy/module/micronumpy/interp_numarray.py
@@ -402,6 +402,10 @@
i += 1
return Chunks(result)
+ def descr_count_nonzero(self, space):
+ res = self.count_all_true()
+ return space.wrap(res)
+
def count_all_true(self):
sig = self.find_sig()
frame = sig.create_frame(self)
@@ -1486,6 +1490,7 @@
take = interp2app(BaseArray.descr_take),
compress = interp2app(BaseArray.descr_compress),
repeat = interp2app(BaseArray.descr_repeat),
+ count_nonzero = interp2app(BaseArray.descr_count_nonzero),
)
diff --git a/pypy/module/micronumpy/test/test_numarray.py b/pypy/module/micronumpy/test/test_numarray.py
--- a/pypy/module/micronumpy/test/test_numarray.py
+++ b/pypy/module/micronumpy/test/test_numarray.py
@@ -2042,6 +2042,12 @@
raises(ValueError, "array(5).item(1)")
assert array([1]).item() == 1
+ def test_count_nonzero(self):
+ from _numpypy import array
+ a = array([1,0,5,0,10])
+ assert a.count_nonzero() == 3
+
+
class AppTestSupport(BaseNumpyAppTest):
def setup_class(cls):
import struct
diff --git a/pypy/module/micronumpy/test/test_ufuncs.py b/pypy/module/micronumpy/test/test_ufuncs.py
--- a/pypy/module/micronumpy/test/test_ufuncs.py
+++ b/pypy/module/micronumpy/test/test_ufuncs.py
@@ -640,6 +640,13 @@
raises(ValueError, count_reduce_items, a, -4)
raises(ValueError, count_reduce_items, a, (0, 2, -4))
+ def test_count_nonzero(self):
+ from _numpypy import where, count_nonzero, arange
+ a = arange(10)
+ assert count_nonzero(a) == 9
+ a[9] = 0
+ assert count_nonzero(a) == 8
+
def test_true_divide(self):
from _numpypy import arange, array, true_divide
assert (true_divide(arange(3), array([2, 2, 2])) == array([0, 0.5, 1])).all()
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