Update copyright

Fix pep517 bugs

Signed-off-by: Aleksei Stepanov <penguinolog@gmail.com>

Author: penguinolog

advanced_descriptors/__init__.py

@@ -1,4 +1,4 @@
-#    Copyright 2017 Alexey Stepanov aka penguinolog
+#    Copyright 2017 - 2019 Alexey Stepanov aka penguinolog
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain
 #    a copy of the License at

advanced_descriptors/advanced_property.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-#    Copyright 2016 - 2018 Alexey Stepanov aka penguinolog
+#    Copyright 2016 - 2019 Alexey Stepanov aka penguinolog
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain
 #    a copy of the License at

advanced_descriptors/log_on_access.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-#    Copyright 2016 - 2018 Alexey Stepanov aka penguinolog
+#    Copyright 2016 - 2019 Alexey Stepanov aka penguinolog
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain
 #    a copy of the License at

advanced_descriptors/separate_class_method.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-#    Copyright 2017-2018 Alexey Stepanov aka penguinolog
+#    Copyright 2017 - 2019 Alexey Stepanov aka penguinolog
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain
 #    a copy of the License at

pyproject.toml

@@ -5,6 +5,7 @@ requires = [
     "setuptools >= 21.0.0,!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0",  # PSF/ZPL
     "wheel",
 ]
+build-backend="setuptools.build_meta"
 
 [tool.black]
 line-length = 120

setup.py

@@ -1,4 +1,4 @@
-#    Copyright 2016 - 2017 Alexey Stepanov aka penguinolog
+#    Copyright 2016 - 2019 Alexey Stepanov aka penguinolog
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain
 #    a copy of the License at
@@ -176,10 +176,6 @@ def get_simple_vars_from_src(src):
         try:
             if isinstance(node.value, ast_data):
                 value = ast.literal_eval(node.value)
-            elif isinstance(node.value, ast.Name) and isinstance(  # NameConstant in python < 3.4
-                node.value.ctx, ast.Load  # Read constant
-            ):
-                value = ast.literal_eval(node.value)
             else:
                 continue
         except ValueError: