diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..1d47a70
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,29 @@
+# Things planned for this project
+
+## Tests
+
+- [ ] Commandline
+- [ ] File
+- [ ] DynamoFile
+- [ ] PythonFile
+- [x] PythonNode
+
+## CI/CD
+
+- [x] Tests on Linux
+- [ ] Tests on Windows
+- [ ] Windows Build
+- [ ] Windows Installer
+- [ ] Pip
+- [ ] Winget
+
+## Documentation
+
+- [x] API docs
+- [ ] Installation in readme
+- [ ] Terminal examples in readme
+- [ ] About git hooks in readme
+
+## Extra features maybe later
+
+- [ ] Autocomplete
\ No newline at end of file
diff --git a/dyn2py/files.py b/dyn2py/files.py
index 9fb3759..8f2a5d9 100644
--- a/dyn2py/files.py
+++ b/dyn2py/files.py
@@ -295,7 +295,7 @@ class DynamoFile(File):
 
     def write_file(self) -> None:
         """Write this file to the disk. Should be called only from File.write()"""
-        with open(self.filepath, "w", encoding="utf-8") as output_file:
+        with open(self.filepath, "w", encoding="utf-8", newline="") as output_file:
             json.dump(self.full_dict, output_file, indent=2,  use_decimal=True)
 
     def get_related_python_files(self, options: Options | None = None) -> list["PythonFile"]:
@@ -472,7 +472,7 @@ class PythonFile(File):
         if not self in self.open_files:
 
             logging.info(f"Reading file: {self.filepath}")
-            with open(self.filepath, mode="r", newline="\r\n", encoding="utf-8") as input_py:
+            with open(self.filepath, mode="r", newline="", encoding="utf-8") as input_py:
                 python_lines = input_py.readlines()
 
             self.header_data = {}
@@ -508,7 +508,7 @@ class PythonFile(File):
 
     def write_file(self) -> None:
         """Write this file to the disk. Should be called only from File.write()"""
-        with open(self.filepath, "w", encoding="utf-8", newline='') as output_file:
+        with open(self.filepath, "w", encoding="utf-8", newline="") as output_file:
             output_file.write(self.text)
 
 
diff --git a/tests/test_File.py b/tests/test_File.py
index 6884451..3d0f9d3 100644
--- a/tests/test_File.py
+++ b/tests/test_File.py
@@ -33,8 +33,6 @@ class TestFile(unittest.TestCase):
             self.assertEqual(the_file.dirpath, pathlib.Path(INPUT_DIR))
             self.assertEqual(the_file.realpath, pathlib.Path(path).resolve())
 
-            self.assertEqual(the_file.mtime, 1678287111.4672492)
-            self.assertEqual(the_file.mtimeiso, "2023-03-08T15:51:51.467249")
             self.assertTrue(the_file.exists)
             self.assertEqual(the_file.extension, ".dyn")
             self.assertFalse(the_file.modified)
diff --git a/tests/test_PythonNode.py b/tests/test_PythonNode.py
index 760111b..13bf889 100644
--- a/tests/test_PythonNode.py
+++ b/tests/test_PythonNode.py
@@ -59,5 +59,5 @@ class TestPythonNode(unittest.TestCase):
 
         self.assertEqual(node.id, "1c5d99792882409e97e132b3e9f814b0")
         self.assertEqual(node.engine, "CPython3")
-        self.assertEqual(node.checksum, "bf0f039ef6f11c3043e0821143801d48")
+        self.assertEqual(node.checksum, "8d9091d24788a6fdfa5e1e109298b50e")
         
\ No newline at end of file