Comments (3)
i am getting the same or a similar unhelpful error using python3 when i import
if i add bases<BaseT>
to a certain class in my library...
initialization of _pybertini raised unreported exception
literally all i add is a bases
to my class_
, and i cannot import
my library any more. this is with boost & boost.python versions 1.66; and Xcode Version 8.0 (8A218a)
, with
clang version 4.0.0 (trunk 289544)
Target: x86_64-apple-darwin15.6.0
Thread model: posix
my python3 line to compile your example is
g++ -std=c++11 -I/usr/local/include -I/Users/ofloveandhate/anaconda/include/python3.6m -shared -o foo.so nullptr_error.cpp -L/Users/ofloveandhate/anaconda/lib -lpython3.6m -L/usr/local/lib -lboost_python3-mt
with boost and boost.python installed from homebrew, and some anaconda install on the path.
to check my sanity, i compiled your above test example, and get the same problem, 22 months later. pretty sure it is the same problem as i am experiencing.
if i compile my code with python2 installed at /usr/local/bin which resolves to version 2.7.13 installed from brew using this
g++ -std=c++11 -I/usr/local/include -I/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/include/python2.7 -shared -o foo.so nullptr_error.cpp -L/usr/local/opt/python/Frameworks/Python.framework/Versions/2.7/lib -lpython2.7 -L/usr/local/lib -lboost_python
i get the following much better error message:
RuntimeError: extension class wrapper for base class bertini::Observer<bertini::tracking::AMPTracker> has not been created yet
in fact, compiling your example using python2 yields this error:
TypeError: No to_python (by-value) converter found for C++ type: std::nullptr_t
why does python2 yield much better error reporting?
is there a way to make the python3 error message more helpful? what are the circumstances in which this particular error can be generated?
from python.
i again encountered this just now (feb 10 2018). i got
initialization of _pybertini raised unreported exception
upon import
of my "successfully" built library. and the issue was that i had not yet exposed an enum
. would have been clearly reported by python2, not with python3.
from python.
I think the lack of precise error reporting was fixed in #280.
But I'm not sure if the problem with nullptr was fixed.
from python.
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