def _verify(self):
if not self.keyid:<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>sign = self.gpg.sign('<STR_LIT>', keyid=self.keyid)<EOL>if '<STR_LIT>' in sign.stderr:<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>elif '<STR_LIT>' in sign.stderr:<EOL><INDENT>self.passphrase = getpass.getpass('<STR_LIT>')<EOL><DEDENT>
Some sanity checks on GPG.