install with pip from pypi

[NikolausDemmel]

Thanks for publishing this library, it is very useful. Can it be added to pypi, to facilitate easy installation via pip install minisam? This also would allow easy install without sudo (pip install --user minisam).

You might then have to package sophus with it, since that is often not available as a system dependency, at least not on mac and ubuntu AFAIK.

For the record, I use the following steps to install minisam (just python package, and without sudo). Tested on macos and ubuntu 18.04.

# 1. install sophus

# a) check for registered setups of sophus; possibly remove old files
ls ~/.cmake/packages/Sophus/

# b) setup / register with cmake:
git clone https://github.com/strasdat/Sophus.git
cd Sophus
mkdir build && cd build
cmake ..
make -j8

# 2. install minisam (pip package)

git clone https://github.com/dongjing3309/minisam.git
cd minisam
mkdir build && cd build
cmake .. -DMINISAM_BUILD_PYTHON_PACKAGE=ON
# Note: using the following flags seems to make the solver hang in python:
# -DMINISAM_WITH_MULTI_THREADS=On -DMINISAM_WITH_MULTI_THREADS_NUM=8
make -j8
pip install --user .

[NikolausDemmel]

Update: Looks like the solver hangs if I compile with threads and run it from python. I removed the cmake flags above.

[dongjing3309]

Will have a look!