import OpenSSL

OpenSSL.crypto.load_certificate(type='FILETYPE_PEM' ,buffer='/Users/MillerProduction/Desktop/certificate.pem')

Traceback (most recent call last):
  File "/Users/MillerProduction/Documents/coding/python/kanboard_tgbot/test2.py", line 5, in <module>
    OpenSSL.crypto.load_certificate(type='FILETYPE_PEM' ,buffer='/Users/MillerProduction/Desktop/certificate.pem')
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/OpenSSL/crypto.py", line 1834, in load_certificate
    "type argument must be FILETYPE_PEM or FILETYPE_ASN1")
ValueError: type argument must be FILETYPE_PEM or FILETYPE_ASN1

 OpenSSL.crypto.load_certificate(type=OpenSSL.crypto.FILETYPE_PEM, buffer=...)

OpenSSL.crypto.Error: [('PEM routines', 'get_name', 'no start line')]

Key format: PEM

-----BEGIN CERTIFICATE-----
MIIEqDCCA5CgAwIBAgIUI+tcb2ZSNst1E6GYiQgDuI5HzMMwDQYJKoZIhvcNAQEL
...
Y/LJuhGXkOtnoKtScz9CU4mXugAvE4jae/jyUxf7i/7vmK9EXIoTO594EjY=
-----END CERTIFICATE-----