alan@deep-thought:/tmp/new-app-icon$ click-review ./com.ubuntu.docviewer_0.3.latest_armhf.click
Traceback (most recent call last):
  File "/usr/bin/click-review", line 138, in <module>
    main()
  File "/usr/bin/click-review", line 132, in main
    results.run_all_checks()
  File "/usr/bin/click-review", line 105, in run_all_checks
    self._run_module_checks(module)
  File "/usr/bin/click-review", line 90, in _run_module_checks
    review = modules.init_main_class(module, self.click_fn)
  File "/usr/lib/python3/dist-packages/clickreviews/modules.py", line 74, in init_main_class
    ob = init_object(click_file)
  File "/usr/lib/python3/dist-packages/clickreviews/cr_url_dispatcher.py", line 49, in __init__
    (full_fn, jd) = self._extract_url_dispatcher(app)
  File "/usr/lib/python3/dist-packages/clickreviews/cr_url_dispatcher.py", line 62, in _extract_url_dispatcher
    fh = open_file_read(fn)
  File "/usr/lib/python3/dist-packages/clickreviews/cr_common.py", line 738, in open_file_read
    orig = codecs.open(path, 'r', "UTF-8")
  File "/usr/lib/python3.5/codecs.py", line 895, in open
    file = builtins.open(filename, mode, buffering)
IsADirectoryError: [Errno 21] Is a directory: '/tmp/clickreview-ic6u649b/'