diff --git a/.gitignore b/.gitignore
index bbe3c82e58..055408bc86 100644
--- a/.gitignore
+++ b/.gitignore
@@ -45,3 +45,4 @@ Thumbs.db
 # asv benchmark files
 /benchmarks/.asv
 /benchmarks/data/
+venv/
diff --git a/src/scanpy/__init__.py b/src/scanpy/__init__.py
index 47bffe370b..c522e540ec 100644
--- a/src/scanpy/__init__.py
+++ b/src/scanpy/__init__.py
@@ -91,3 +91,4 @@
     "tl",
     "write",
 ]
+# TODO: investigate BasePlot DataFrame conversion