xmlsec.Error: (1, 'cannot load key') while loading the private key #328

Hi Team,

I have a X509 private in a file and trying to use the below code to load the private key. However i am getting the xmlsec.Error: (1, 'cannot load key'). I tried multiple ways. nothing is working and more over the error message is not detailed enough to try other options.

Any suggestions are greatly appreciated. Thank you.

with open('private_key.pem', 'rb') as key_file:
    key_data = key_file.read()
xmlsec.Key.from_memory(key_data, xmlsec.constants.KeyDataFormatPem)

My PEM file format is as shown below:

-----BEGIN PRIVATE KEY-----
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
TUlkjshduahdajsduaydjaudhswmb7ajwesdajhassdadasdsdaeddasdaeqdea
asdadasd==
-----END PRIVATE KEY-----