diff --git a/wobbl_tools/examples/data_file.py b/wobbl_tools/_examples/data_file.py
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rename from wobbl_tools/examples/data_file.py
rename to wobbl_tools/_examples/data_file.py
diff --git a/wobbl_tools/examples/examples.py b/wobbl_tools/_examples/examples.py
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rename from wobbl_tools/examples/examples.py
rename to wobbl_tools/_examples/examples.py
diff --git a/wobbl_tools/examples/gui.py b/wobbl_tools/_examples/gui.py
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rename from wobbl_tools/examples/gui.py
rename to wobbl_tools/_examples/gui.py
diff --git a/wobbl_tools/math/spvo.py b/wobbl_tools/_math/spvo.py
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rename from wobbl_tools/math/spvo.py
rename to wobbl_tools/_math/spvo.py
diff --git a/wobbl_tools/pgui b/wobbl_tools/_pgui
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rename from wobbl_tools/pgui
rename to wobbl_tools/_pgui