Introduce GN3_PYTHONPATH environment variable

2 files changed, 7 insertions, 1 deletions

diff --git a/README.md b/README.md
index 6921d299..62ead0bd 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,12 @@ startup script [./bin/genenetwork2](https://github.com/genenetwork/genenetwork2/
 Also mariadb and redis need to be running, see
 [INSTALL](./doc/README.org).
 
+## Development
+
+It may be useful to pull in the GN3 python modules locally. For this
+use `GN3_PYTHONPATH` environment that gets injected in
+the ./bin/genenetwork2 startup.
+
 ## Testing
 
 To have tests pass, the redis and mariadb instance should be running, because of
diff --git a/bin/genenetwork2 b/bin/genenetwork2
index 5f714d2e..b5c940a8 100755
--- a/bin/genenetwork2
+++ b/bin/genenetwork2
@@ -147,7 +147,7 @@ if [ ! -d $R_LIBS_SITE ] ; then
 fi
 
 # We may change this one:
-export PYTHONPATH=$PYTHON_GN_PATH:$GN2_BASE_DIR/wqflask:$PYTHONPATH
+export PYTHONPATH=$PYTHON_GN_PATH:$GN2_BASE_DIR/wqflask:$GN3_PYTHONPATH:$PYTHONPATH
 
 # Our UNIX TMPDIR defaults to /tmp - change this on a shared server
 if [ -z $TMPDIR ]; then