chore: codespell typos fixes

plone/supermodel/interfaces.py

@@ -150,7 +150,7 @@ def name(schemaName, tree):
 class IFieldExportImportHandler(Interface):
     """Named utilities corresponding to node names should be registered for
     this interface. They will be called upon to build a schema fields out of
-    DOM ndoes.
+    DOM nodes.
     """
 
     def read(node):

plone/supermodel/schema.rst

@@ -167,7 +167,7 @@ directory.
     >>> tmpdir = tempfile.mkdtemp()
     >>> schema_filename = os.path.join(tmpdir, 'schema.xml')
     >>> with open(schema_filename, 'w') as fd:
-    ...     _ = fd.write(schema)  # On Py3 write resturns the schema len
+    ...     _ = fd.write(schema)  # On Py3 write returns the schema len
 
 We can define interfaces from this using a helper function:
 

plone/supermodel/utils.py

@@ -44,7 +44,7 @@ def indent(node, level=0):
     node_indent = level * (" " * INDENT_SIZE)
     child_indent = (level + 1) * (" " * INDENT_SIZE)
 
-    # node has childen
+    # node has children
     if len(node):
 
         # add indent before first child node