pep8

tracim/tracim/lib/content.py

         return content
 
     def copy_children(self, origin_content: Content, new_content: Content):
-       for child in origin_content.children:
+        for child in origin_content.children:
             self.copy(child, new_content)
 
     def move_recursively(self, item: Content,

tracim/tracim/tests/library/test_content_api.py

         assert text_file != text_file_copy
         assert text_file_copy.content_id != text_file.content_id
         assert text_file_copy.workspace_id == workspace2.workspace_id
-        assert text_file_copy.depot_file.file.read() == text_file.depot_file.file.read()
+        assert text_file_copy.depot_file.file.read() == text_file.depot_file.file.read()   # nopep8
         assert text_file_copy.depot_file.path != text_file.depot_file.path
         assert text_file_copy.label == 'test_file_copy'
         assert text_file_copy.type == text_file.type
         assert text_file != text_file_copy
         assert text_file_copy.content_id != text_file.content_id
         assert text_file_copy.workspace_id == workspace2.workspace_id
-        assert text_file_copy.depot_file.file.read() == text_file.depot_file.file.read()
+        assert text_file_copy.depot_file.file.read() == text_file.depot_file.file.read()  # nopep8
         assert text_file_copy.depot_file.path != text_file.depot_file.path
         assert text_file_copy.label == text_file.label
         assert text_file_copy.type == text_file.type
         assert text_file != text_file_copy
         assert text_file_copy.content_id != text_file.content_id
         assert text_file_copy.workspace_id == workspace.workspace_id
-        assert text_file_copy.depot_file.file.read() == text_file.depot_file.file.read()
+        assert text_file_copy.depot_file.file.read() == text_file.depot_file.file.read()  # nopep8
         assert text_file_copy.depot_file.path != text_file.depot_file.path
         assert text_file_copy.label == 'test_file_copy'
         assert text_file_copy.type == text_file.type