remove requirements install step as it is now a part of the cmake process

.github/scripts/python.sh

@@ -39,8 +39,6 @@ function install_dependencies()
   if [ "${GTSAM_WITH_TBB:-OFF}" == "ON" ]; then
     install_tbb
   fi
-
-  $PYTHON -m pip install -r $GITHUB_WORKSPACE/python/requirements.txt
 }
 
 function build()

docker/ubuntu-gtsam-python/Dockerfile

@@ -6,9 +6,6 @@ FROM borglab/ubuntu-gtsam:bionic
 # Install pip
 RUN apt-get install -y python3-pip python3-dev
 
-# Install python wrapper requirements
-RUN python3 -m pip install -U -r /usr/src/gtsam/python/requirements.txt
-
 # Run cmake again, now with python toolbox on
 WORKDIR /usr/src/gtsam/build
 RUN cmake \

python/README.md

@@ -16,7 +16,7 @@ For instructions on updating the version of the [wrap library](https://github.co
 - This wrapper needs `pyparsing(>=2.4.2)`, and `numpy(>=1.11.0)`. These can be installed as follows:
 
   ```bash
-  pip install -r <gtsam_folder>/python/requirements.txt
+  pip install -r <gtsam_folder>/python/dev_requirements.txt
   ```
 
 ## Install