diff --git a/python/swiftest/setup.py b/python/swiftest/setup.py
index 2d0e35f2d..917ad64e4 100644
--- a/python/swiftest/setup.py
+++ b/python/swiftest/setup.py
@@ -1,3 +1,14 @@
+"""
+ Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh
+ This file is part of Swiftest.
+ Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
+ as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ Swiftest 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 General Public License for more details.
+ You should have received a copy of the GNU General Public License along with Swiftest. 
+ If not, see: https://www.gnu.org/licenses. 
+"""
+
 from setuptools import setup, find_packages
 
 setup(name='swiftest',
diff --git a/python/swiftest/swiftest/__init__.py b/python/swiftest/swiftest/__init__.py
index 61f0a6c2a..4636057ba 100644
--- a/python/swiftest/swiftest/__init__.py
+++ b/python/swiftest/swiftest/__init__.py
@@ -1,2 +1,13 @@
+"""
+ Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh
+ This file is part of Swiftest.
+ Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
+ as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ Swiftest 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 General Public License for more details.
+ You should have received a copy of the GNU General Public License along with Swiftest. 
+ If not, see: https://www.gnu.org/licenses. 
+"""
+
 from swiftest.constants import *
 from swiftest.simulation_class import Simulation
\ No newline at end of file
diff --git a/python/swiftest/swiftest/constants.py b/python/swiftest/swiftest/constants.py
index caf8f8fe7..5bd5bc7a4 100644
--- a/python/swiftest/swiftest/constants.py
+++ b/python/swiftest/swiftest/constants.py
@@ -1,3 +1,14 @@
+"""
+ Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh
+ This file is part of Swiftest.
+ Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
+ as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ Swiftest 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 General Public License for more details.
+ You should have received a copy of the GNU General Public License along with Swiftest. 
+ If not, see: https://www.gnu.org/licenses. 
+"""
+
 import numpy as np
 import astropy.constants as const
 
diff --git a/python/swiftest/swiftest/init_cond.py b/python/swiftest/swiftest/init_cond.py
index 932c6c960..7d7c20e14 100644
--- a/python/swiftest/swiftest/init_cond.py
+++ b/python/swiftest/swiftest/init_cond.py
@@ -1,3 +1,14 @@
+"""
+ Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh
+ This file is part of Swiftest.
+ Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
+ as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ Swiftest 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 General Public License for more details.
+ You should have received a copy of the GNU General Public License along with Swiftest. 
+ If not, see: https://www.gnu.org/licenses. 
+"""
+
 import swiftest
 import numpy as np
 from astroquery.jplhorizons import Horizons
diff --git a/python/swiftest/swiftest/io.py b/python/swiftest/swiftest/io.py
index 0263f4e0a..176237b0a 100644
--- a/python/swiftest/swiftest/io.py
+++ b/python/swiftest/swiftest/io.py
@@ -1,3 +1,14 @@
+"""
+ Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh
+ This file is part of Swiftest.
+ Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
+ as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ Swiftest 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 General Public License for more details.
+ You should have received a copy of the GNU General Public License along with Swiftest. 
+ If not, see: https://www.gnu.org/licenses. 
+"""
+
 import swiftest
 import numpy as np
 from scipy.io import FortranFile
diff --git a/python/swiftest/swiftest/simulation_class.py b/python/swiftest/swiftest/simulation_class.py
index 218ca553e..cc4229a23 100644
--- a/python/swiftest/swiftest/simulation_class.py
+++ b/python/swiftest/swiftest/simulation_class.py
@@ -1,3 +1,14 @@
+"""
+ Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh
+ This file is part of Swiftest.
+ Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
+ as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ Swiftest 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 General Public License for more details.
+ You should have received a copy of the GNU General Public License along with Swiftest. 
+ If not, see: https://www.gnu.org/licenses. 
+"""
+
 from swiftest import io
 from swiftest import init_cond
 from swiftest import tool
diff --git a/python/swiftest/swiftest/tool.py b/python/swiftest/swiftest/tool.py
index 41742061a..91f8c5a46 100644
--- a/python/swiftest/swiftest/tool.py
+++ b/python/swiftest/swiftest/tool.py
@@ -1,3 +1,14 @@
+"""
+ Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh
+ This file is part of Swiftest.
+ Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
+ as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ Swiftest 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 General Public License for more details.
+ You should have received a copy of the GNU General Public License along with Swiftest. 
+ If not, see: https://www.gnu.org/licenses. 
+"""
+
 import swiftest
 import numpy as np
 import os