diff --git a/core/functions/__init__.py b/core/functions/__init__.py
index e5a0d9b4834ec8f46d6e0d1256c6dcaad2e460fe..a23e56a756e58d18a78ab045575bd3e65d36b2b1 100644
--- a/core/functions/__init__.py
+++ b/core/functions/__init__.py
@@ -1 +1,5 @@
 #!/usr/bin/env python3
+
+"""
+Collection of non-process functions. These are usually called by processes but not fetched automatically..
+"""
diff --git a/core/functions/test_hdf.py b/core/functions/test_hdf.py
deleted file mode 100644
index 5bd3b1a12e9b08743b8058d17ef4bb23719ac6a4..0000000000000000000000000000000000000000
--- a/core/functions/test_hdf.py
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/usr/bin/env python3
-# c=CellsHDF.from_source("/home/alan/Documents/sync_docs/PhD/tmp/DO6MS2_003store.h5")
-import h5py
-from core.cells import Cells
-import pandas as pd
-
-# f = h5py.File("/home/alan/Documents/sync_docs/PhD/tmp/DO6MS2_003store.h5")
-fname = "/shared_libs/pipeline-core/scripts/data/20191026_ss_experiments_01/DO6MS2_003store.h5"
-f = h5py.File(fname)
-tracks = f["/extraction/general/None/area"][()]
-cell = Cells.from_source(fname)
-from postprocessor.core.processes.picker import Picker, PickerParameters
-
-picker = Picker(cells=cell, parameters=PickerParameters.default())
-
-from postprocessor.core.processor import PostProcessor, PostProParameters
-
-pp = PostProcessor(filename=fname, parameters=PostProParameters.default())
-pp.run()