[Numpy-discussion] python 3.8: heads up: numpy/ma/core.py causes warning that breaks numpy detection in boost build
balducci at units.it
balducci at units.it
Fri Mar 1 05:23:23 EST 2019
hello
just a notice to help preventing future problems...
python-3.8.0 (alpha) emits the following warning on numpy/ma/core.py
(verified up to official 1.16.2):
----8<----
/usr/python3/site_python3/lib64/numpy.egg/numpy/ma/core.py:4466: SyntaxWarning: "is" with a literal. Did you mean "=="?
if self.shape is ():
/usr/python3/site_python3/lib64/numpy.egg/numpy/ma/core.py:4466: SyntaxWarning: "is" with a literal. Did you mean "=="?
if self.shape is ():
/usr/python3/site_python3/lib64/numpy.egg/numpy/core/include
---->8----
In turn, this breaks boost's numpy detection, which is done with:
----8<----
notice: [python-cfg] running command '/usr/python3/bin/python -c "import sys; sys.stderr = sys.stdout; import numpy; print(numpy.get_include())"'
---->8----
and thus produces an unusable include path (containing the warning
message from python)
The following:
----8<----
*** numpy/ma/core.py.PYTHON_3_8_COMPAT Wed Feb 27 12:45:06 2019
--- numpy/ma/core.py Wed Feb 27 12:45:06 2019
***************
*** 4463,4469 ****
if m is nomask:
# compare to _count_reduce_items in _methods.py
! if self.shape is ():
if axis not in (None, 0):
raise np.AxisError(axis=axis, ndim=self.ndim)
return 1
--- 4463,4469 ----
if m is nomask:
# compare to _count_reduce_items in _methods.py
! if self.shape == ():
if axis not in (None, 0):
raise np.AxisError(axis=axis, ndim=self.ndim)
return 1
---->8----
fixes everything for me
thanks
ciao
-g
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