src/OpenSSL/SSL.py
def use_certificate_file(self, certfile, filetype=FILETYPE_PEM):
        """
        Load a certificate from a file

        :param certfile: The name of the certificate file (``bytes`` or
            ``unicode``).
        :param filetype: (optional) The encoding of the file, which is either
            :const:`FILETYPE_PEM` or :const:`FILETYPE_ASN1`.  The default is
            :const:`FILETYPE_PEM`.

        :return: None
        """
        certfile = _path_string(certfile)
        if not isinstance(filetype, integer_types):
            raise TypeError("filetype must be an integer")

        use_result = _lib.SSL_CTX_use_certificate_file(
            self._context, certfile, filetype
        )
        if not use_result:
            _raise_current_error()
def use_certificate_file(self, certfile, filetype=FILETYPE_PEM):
        """
        Load a certificate from a file

        :param certfile: The name of the certificate file (``bytes`` or
            ``unicode``).
        :param filetype: (optional) The encoding of the file, which is either
            :const:`FILETYPE_PEM` or :const:`FILETYPE_ASN1`.  The default is
            :const:`FILETYPE_PEM`.

        :return: None
        """
        certfile = _path_string(certfile)
        if not isinstance(filetype, integer_types):
            raise TypeError("filetype must be an integer")

        use_result = _lib.SSL_CTX_use_certificate_file(
            self._context, certfile, filetype
        )
        if not use_result:
            _raise_current_error()
Load a certificate from a file

        :param certfile: The name of the certificate file (``bytes`` or
            ``unicode``).
        :param filetype: (optional) The encoding of the file, which is either
            :const:`FILETYPE_PEM` or :const:`FILETYPE_ASN1`.  The default is
            :const:`FILETYPE_PEM`.

        :return: None