attributeError : 'str' has no attribute 'is_compressed'

[devanshpushkarn]

constant attribute error while using encrypt(). Even tried using compression=None

encrypted_data = key.encrypt(csv_buffer_l3.getvalue(),compression=None)

File "C:\ProgramData\Anaconda3\lib\site-packages\pgpy\decorators.py", line 131, in _action
return action(_key, *args, **kwargs)

File "C:\ProgramData\Anaconda3\lib\site-packages\pgpy\pgp.py", line 2541, in encrypt
if message.is_compressed and message._compression not in uid.selfsig.compprefs:

AttributeError: 'str' object has no attribute 'is_compressed'