Installation¶

Python Package¶

python -m pip install tract7dt

tract7dt depends on several scientific Python packages (declared in package metadata). Tractor and astrometry dependencies must be installed separately.

Recommended Tractor Setup¶

1) Create environment¶

conda create -n <envname> python=3.11 -y
conda activate <envname>

2) Install system dependencies¶

sudo apt update
sudo apt install -y build-essential python3-dev git pkg-config \
    libcfitsio-dev libeigen3-dev swig libceres-dev \
    libgoogle-glog-dev libgflags-dev libsuitesparse-dev

3) Install Python build stack¶

pip install -U pip setuptools wheel cython numpy scipy fitsio emcee matplotlib

4) Install astrometry.net¶

conda install -c conda-forge astrometry -y

5) Build/install Tractor¶

git clone https://github.com/dstndstn/tractor.git
cd tractor
python setup.py build_ext --inplace --with-ceres --with-cython
pip install . --no-build-isolation

6) Verify¶

python -c "import tractor; print(tractor.__version__)"
python -c "from tractor.ceres_optimizer import CeresOptimizer; print('CeresOptimizer OK')"