Reads from the VMware VMX file corresponding to this VM.

def _read_vmx_file(self):
        """
        Reads from the VMware VMX file corresponding to this VM.
        """

        try:
            self._vmx_pairs = self.manager.parse_vmware_file(self._vmx_path)
        except OSError as e:
            raise VMwareError('Could not read VMware VMX file "{}": {}'.format(self._vmx_path, e))