diff --git a/etrago/cluster/electrical.py b/etrago/cluster/electrical.py
index 25102865..1194101e 100755
--- a/etrago/cluster/electrical.py
+++ b/etrago/cluster/electrical.py
@@ -21,10 +21,13 @@
 """ electrical.py defines the methods to cluster power grid networks
 spatially for applications within the tool eTraGo."""
 
+import logging
 import os
 
+logger = logging.getLogger(__name__)
+
 if "READTHEDOCS" not in os.environ:
-    import logging
+    
 
     from pypsa import Network
     from pypsa.clustering.spatial import (
@@ -50,7 +53,6 @@
     )
     from etrago.tools.utilities import set_control_strategies
 
-    logger = logging.getLogger(__name__)
 
 __copyright__ = (
     "Flensburg University of Applied Sciences, "
diff --git a/etrago/cluster/gas.py b/etrago/cluster/gas.py
index b31f4e1e..d4cb72ec 100644
--- a/etrago/cluster/gas.py
+++ b/etrago/cluster/gas.py
@@ -21,10 +21,10 @@
 """ gas.py defines the methods to cluster gas grid networks
 spatially for applications within the tool eTraGo."""
 
+import logging
 import os
 
 if "READTHEDOCS" not in os.environ:
-    import logging
 
     from pypsa.clustering.spatial import (
         aggregatebuses,
diff --git a/etrago/cluster/spatial.py b/etrago/cluster/spatial.py
index 9f782c1d..cc214834 100755
--- a/etrago/cluster/spatial.py
+++ b/etrago/cluster/spatial.py
@@ -20,12 +20,12 @@
 # File description for read-the-docs
 """ spatial.py defines the methods to run spatial clustering on networks."""
 
+import logging
 import os
 
 if "READTHEDOCS" not in os.environ:
     from itertools import product
     from math import ceil
-    import logging
     import multiprocessing as mp
 
     from networkx import NetworkXNoPath
@@ -49,7 +49,7 @@
         connected_transformer,
     )
 
-    logger = logging.getLogger(__name__)
+logger = logging.getLogger(__name__)
 
 __copyright__ = (
     "Flensburg University of Applied Sciences, "
diff --git a/etrago/disaggregate/spatial.py b/etrago/disaggregate/spatial.py
index 70da2be5..733820f4 100644
--- a/etrago/disaggregate/spatial.py
+++ b/etrago/disaggregate/spatial.py
@@ -1,3 +1,27 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016-2023  Flensburg University of Applied Sciences,
+# Europa-Universität Flensburg,
+# Centre for Sustainable Energy Systems,
+# DLR-Institute for Networked Energy Systems
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# File description
+"""
+spatial.py defines the methods to run spatial disaggregation on networks.
+"""
+
 from functools import reduce
 from itertools import product
 from operator import methodcaller as mc, mul as multiply
@@ -9,9 +33,22 @@
 from pypsa import Network
 import pandas as pd
 
-from etrago.tools import noops
-from etrago.tools.utilities import residual_load
-
+if "READTHEDOCS" not in os.environ:
+    from etrago.tools import noops
+    from etrago.tools.utilities import residual_load
+
+__copyright__ = (
+    "Flensburg University of Applied Sciences, "
+    "Europa-Universität Flensburg, "
+    "Centre for Sustainable Energy Systems, "
+    "DLR-Institute for Networked Energy Systems"
+)
+__license__ = "GNU Affero General Public License Version 3 (AGPL-3.0)"
+__author__ = (
+    "MGlauer, MarlonSchlemminger, mariusves, BartelsJ, gnn, lukasoldi, "
+    "ulfmueller, lukasol, ClaraBuettner, CarlosEpia, KathiEsterl, "
+    "pieterhexen, fwitte, AmeliaNadal, cjbernal071421"
+)
 
 class Disaggregation:
     def __init__(self, original_network, clustered_network, busmap, skip=()):
diff --git a/etrago/disaggregate/temporal.py b/etrago/disaggregate/temporal.py
index 5e7b6ede..f30ebec9 100644
--- a/etrago/disaggregate/temporal.py
+++ b/etrago/disaggregate/temporal.py
@@ -19,7 +19,7 @@
 
 # File description
 """
-execute.py defines optimization and simulation methods for the etrago object.
+temporal.py defines the methods to run temporal disaggregation on networks.
 """
 import logging
 import os
diff --git a/etrago/tools/io.py b/etrago/tools/io.py
index 16781c67..b648eef7 100644
--- a/etrago/tools/io.py
+++ b/etrago/tools/io.py
@@ -49,19 +49,21 @@
 __author__ = "ulfmueller, mariusves, pieterhexen, ClaraBuettner"
 
 from importlib import import_module
+import logging
 import os
 
 import numpy as np
 import pandas as pd
 import pypsa
 
-if "READTHEDOCS" not in os.environ:
-    import logging
+logger = logging.getLogger(__name__)
+
+if "READTHEDOCS" not in os.environ: 
 
     from sqlalchemy.orm.exc import NoResultFound
     import saio
 
-    logger = logging.getLogger(__name__)
+    
 
 carr_ormclass = "Source"