message: Added instructions for local installs.
diff: This is the DuckDB Python package
  +
  +## Installing locally
  +
  +Set the prefix path:
  +
  + export DUCKDB_PREFIX=/path/to/install/duckdb
  +
  +### Setup for development
  +
  +Install the package from the root of the DuckDB reposity:
  +
  + cd ../..
  + pip3 install --prefix $DUCKDB_PREFIX -e tools/pythonpkg
  +
  +This creates a package that uses the files in `tools/pythonpkg`, the
  +best option during development.
  +
  +### Setup for cloud storage
  +
  +Alternatively, you may need the package files to reside under the same
  +prefix where the library is installed; e.g., when installing to cloud
  +storage from a notebook.
  +
  +First, get the version number from the repository.
  +
  + cd tools/pythonpkg
  + export DUCKDB_VERSION=$(python setup.py --version)
  + sed -e "s/DUCKDB_VERSION/${DUCKDB_VERSION}.local/g" -i.orig setup.py
  + cd ../..
  +
  +Next, copy over the python package related files, and install the package.
  +
  + mkdir -p $DUCKDB_PREFIX/src/duckdb-pythonpkg
  + cp -R tools/pythonpkg $DUCKDB_PREFIX/src/duckdb-pythonpkg
  + pip3 install --prefix $DUCKDB_PREFIX -e $DUCKDB_PREFIX/src/duckdb-pythonpkg
  +
  