Fix

src/aiida/cmdline/commands/cmd_code.py

@@ -240,21 +240,8 @@ def export(code, output_file):
     """Export code to a yaml file."""
     import yaml
 
-    code_data = {}
-
-    for key in code.Model.model_fields.keys():
-        if key == 'computer':
-            value = getattr(code, key).label
-        else:
-            value = getattr(code, key)
-
-        # If the attribute is not set, for example ``with_mpi`` do not export it, because the YAML won't be valid for
-        # use in ``verdi code create`` since ``None`` is not a valid value on the CLI.
-        if value is not None:
-            code_data[key] = str(value)
-
     with open(output_file, 'w', encoding='utf-8') as yfhandle:
-        yaml.dump(code_data, yfhandle)
+        yaml.dump(code.serialize(), yfhandle)
 
 
 @verdi_code.command()

src/aiida/orm/nodes/data/code/installed.py

@@ -45,13 +45,15 @@ class Model(AbstractCode.Model):
             ...,
             title='Computer',
             description='The remote computer on which the executable resides.',
+            orm_to_model=lambda node: node.computer.label,
             short_name='-Y',
             priority=2,
         )
         filepath_executable: str = MetadataField(
             ...,
             title='Filepath executable',
             description='Filepath of the executable on the remote computer.',
+            orm_to_model=lambda node: str(node.filepath_executable),  # type: ignore[attr-defined]
             short_name='-X',
             priority=1,
         )