Python3: AttributeError: 'dict' object has no attribute 'iteritems'

[lucid]

Plugin fails in Python 3:

Traceback (most recent call last):
  File "trac\web\main.py", line 617, in dispatch_request
    dispatcher.dispatch(req)
  File "trac\web\main.py", line 303, in dispatch
    raise e
  File "trac\web\main.py", line 253, in dispatch
    self._post_process_request(req, *resp)
  File "trac\web\main.py", line 471, in _post_process_request
    resp = f.post_process_request(req, *resp)
  File "pullrequests\web_ui.py", line 120, in post_process_request
    self._append_pr_links(req, data)
  File "pullrequests\web_ui.py", line 126, in _append_pr_links
    items = PullRequest.select(self.env, ticket=str(ticket.id))
  File "pullrequests\model.py", line 93, in select
    for name, value in sorted(kwargs.iteritems()):
AttributeError: 'dict' object has no attribute 'iteritems'

[lucid]

In 17663:

PullRequestsPlugin: Python3 compatibility.
(fix #13741)