未找到名为“pyopengv”的模块

Question

I'm using Ubunutu LTS 18.04, and trying to install OpenGV module for python3. I've cloned and built OpenGV from its documentation. I sat the flags for python 3. I linked pyopengv.cpython-36m-x86_64-linux-gnu.so in folder /usr/local/lib/python3/dist-packages/. And still, it doesn't import pyopengv. I don't get what is wrong. I will specify what I made in commands...

git clone https://github.com/laurentkneip/opengv

cd opengv

mkdir build && cd build && cmake .. && make

git submodule update --init --recursive

cmake .. -DBUILD_PYTHON=ON -DPYBIND11_PYTHON_VERSION=3.6 -DPYTHON_INSTALL_DIR=/usr/local/lib/python3.6/dist-packages

cd /usr/local/lib/python3.7/dist-packages/

ln -s /usr/local/lib/python3/dist-packages/pyopengv.cpython-36m-x86_64-linux-gnu.so

And finally I'm in opengv/python trying this python3 tests.py but still get the error of "No module 'pyopengv' found.

Anyone knows what I am doing wrong?

Answer 1

No module named 'pyopengv' found

python3 tests.py will look for pyopengv in /usr/lib/python3/dist-packages/

So either do cmake -DBUILD_PYTHON=ON -DPYBIND11_PYTHON_VERSION=3.6 -DPYTHON_INSTALL_DIR=/usr/lib/python3/dist-packages/ .. or make a symlink to the desired location.

Ubuntu 18.04 with /usr/lib/python3/dist-packages/pyopengv.cpython-36m-x86_64-linux-gnu.so ... testing

$ python3 tests.py 
Testing relative pose
Done testing relative pose
Testing relative pose ransac
Done testing relative pose ransac
Testing relative pose ransac rotation only
Done testing relative pose ransac rotation only
Testing triangulation
Done testing triangulation

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Edit, Mar 05 2020

Ubuntu 18.04, the complete build sequence :

 git clone https://github.com/laurentkneip/opengv.git cd opengv/ git submodule update --init --recursive mkdir build && cd build/ cmake -DBUILD_PYTHON=ON -DPYBIND11_PYTHON_VERSION=3.6 -DPYTHON_INSTALL_DIR=/usr/lib/python3/dist-packages/ .. make && sudo make install

Check module location :

 find /usr/lib/ -name pyopengv.cpython-36m-x86_64-linux-gnu.so /usr/lib/python3/dist-packages/pyopengv.cpython-36m-x86_64-linux-gnu.so

Note : A check with "Other Linux OS" → Usable module location was /usr/lib64/python 3.6/site -packages