Traceback (most recent call last):
  File "example.py", line 15, in <module>
    newdf = df1.append(df2)
            ^^^^^^^^^^
  File "D:\site\python313\Lib\site-packages\pandas\core\generic.py", line 6299, in __getattr__
    return object.__getattribute__(self, name)
           ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
AttributeError: 'DataFrame' object has no attribute 'append'. Did you mean: '_append'?