Index: fact/tools/pyscripts/pyfact/calfactfits.h
===================================================================
--- fact/tools/pyscripts/pyfact/calfactfits.h	(revision 15372)
+++ fact/tools/pyscripts/pyfact/calfactfits.h	(revision 16947)
@@ -16,4 +16,7 @@
 // root [2] .L factfits.h++
 // root [3] .L calfactfits.h++
+// 
+// Note: the produced izstream_h.so must be in LD_LIBRARY_PATH, e.g.
+// export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/guest/kraehenb/software/PythonIncludes/
 //
 // Usage in Python: