Comment 3 for bug 1860456

Since the checksum actually is incorrect for this package/version, the MR will allow this to work if you add verify_signature=False:

>>> archive.UbuntuSourcePackage('akonadi', '1.1.2-0ubuntu1~jaunty1').pull()
Public key not found, could not verify signature
Checksum for akonadi_1.1.2.orig.tar.gz does not match.
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/ubuntutools/archive.py", line 514, in pull
    raise DownloadError('File %s could not be found' % name)
ubuntutools.archive.DownloadError: File akonadi_1.1.2.orig.tar.gz could not be found
>>> archive.UbuntuSourcePackage('akonadi', '1.1.2-0ubuntu1~jaunty1', verify_signature=False).pull()
>>>