MeshPy October 2018

meshpy@tiker.net

3 participants
4 discussions

Re: [MeshPy] problems when loading both tet and triangle

by Andreas Kloeckner

Alejandro, Kip, "Hart, Kenneth A" <khart(a)gatech.edu> writes: > I get the same error and I think this has to do with my setup.py hack > to get MeshPy to install on the mac. I added a line that forces the > Mac to use a C++ compiler instead of a C compiler because the compile > line has a combination of C compiler and C++ flags. I figured > switching the compiler to C++ would solve the problem. Now it installs > but throws that realarray error. > > I want to try removing the C++ flags for C-compiled code, but I'm not > experienced enough with distutils to attempt that. Perhaps Andreas > could take a look? Try current master. Andreas

2 years, 6 months

Re: [MeshPy] problems when loading both tet and triangle

by Alejandro Marcos Aragón

Hi Kip, Thanks for your swift reply. It wasn’t easy to install MeshPy in the first place. I figured the C++ flags also called for clang++ instead, so I ended up doing something similar to your hack, but on the command line: $ CC=clang++ CPPFLAGS=-I/Users/aaragon/Local/pybind11/include python setup.py install also because pybind’s installation didn’t put the header files in known header file paths. Best, — Alejandro > On Oct 10, 2018, at 18:49, Hart, Kenneth A <khart(a)gatech.edu> wrote: > > Hi Alejandro, > > I get the same error and I think this has to do with my setup.py hack to get MeshPy to install on the mac. I added a line that forces the Mac to use a C++ compiler instead of a C compiler because the compile line has a combination of C compiler and C++ flags. I figured switching the compiler to C++ would solve the problem. Now it installs but throws that realarray error. > > I want to try removing the C++ flags for C-compiled code, but I'm not experienced enough with distutils to attempt that. Perhaps Andreas could take a look? > > Best, > Kip > From: MeshPy <meshpy-bounces(a)tiker.net> on behalf of Alejandro Marcos Aragón <alejandro.aragon(a)gmail.com> > Sent: Wednesday, October 10, 2018 12:24:16 PM > To: MeshPy(a)tiker.net > Subject: [MeshPy] problems when loading both tet and triangle > > Dear all, > > In the application I’m working on, I need to use both triangle and tetgen in the same function. I try to import both of them in a module as follows: > > import meshpy.triangle as triangle > import meshpy.tet as tet > > but then I get the error: > > $ python test.py > Traceback (most recent call last): > File "test.py", line 6, in <module> > import meshpy.tet as tet > File "/Users/aaragon/.virtualenvs/pydev/lib/python3.7/site-packages/MeshPy-2018.2-py3.7-macosx-10.9-x86_64.egg/meshpy/tet.py", line 4, in <module> > import meshpy._tetgen as internals > ImportError: generic_type: type "RealArray" is already registered! > > If I invert the order the error happens then when I try to load triangle. Is there a way to fix this problem? > On Mac OS, I’m using Python 3.7 and the latest version of MeshPy that uses PyBind (this was quite difficult to install). > > Best, > > — Alejandro M. Aragón, Ph.D. >

2 years, 6 months

problems when loading both tet and triangle

by Alejandro Marcos Aragón

Dear all, In the application I’m working on, I need to use both triangle and tetgen in the same function. I try to import both of them in a module as follows: import meshpy.triangle as triangle import meshpy.tet as tet but then I get the error: $ python test.py Traceback (most recent call last): File "test.py", line 6, in <module> import meshpy.tet as tet File "/Users/aaragon/.virtualenvs/pydev/lib/python3.7/site-packages/MeshPy-2018.2-py3.7-macosx-10.9-x86_64.egg/meshpy/tet.py", line 4, in <module> import meshpy._tetgen as internals ImportError: generic_type: type "RealArray" is already registered! If I invert the order the error happens then when I try to load triangle. Is there a way to fix this problem? On Mac OS, I’m using Python 3.7 and the latest version of MeshPy that uses PyBind (this was quite difficult to install). Best, — Alejandro M. Aragón, Ph.D.

2 years, 6 months

Install Error + Fix for OS X

by Hart, Kenneth A

Hi Andreas, I recently tried to install MeshPy on a new Mac and received the error message below. It looks like my computer is trying to compile Triangle with a C compiler and C++ flags. To fix this, I downloaded the git repository and edited the setup.py file: 88: if sys.platform == 'darwin': 89: c_opts['unix'] += ['-stdlib=libc++', '-mmacosx-version-min=10.7'] 90: import os 91: os.environ['CC'] = 'clang++’ I’m unfamiliar with distutils, so there may be a better solution. I didn’t get this error on Linux and have not tried re-installing on Windows. Best, Kip Error message: gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -fwrapv -Wall -O1 -DNDEBUG -DEXTERNAL_TEST=1 -DANSI_DECLARATORS=1 -DTRILIBRARY=1 -I/Users/khart31/Documents/venv/include/site/python3.7 -I/Users/khart31/Documents/venv/include/site/python3.7 -Isrc/cpp -I/Users/khart31/Documents/venv/include -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c src/cpp/triangle.c -o build/temp.macosx-10.9-x86_64-3.7/src/cpp/triangle.o -stdlib=libc++ -mmacosx-version-min=10.7 -DVERSION_INFO="2018.2" -std=c++14 -fvisibility=hidden error: invalid argument '-std=c++14' not allowed with 'C' error: command 'gcc' failed with exit status 1

2 years, 6 months

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MeshPy October 2018