WatchmanReloaderTests fail with AttributeError: type object 'WatchmanReloader' has no attribute 'client_timeout'

[Poli García]

Running Django's test suite fails with:

======================================================================
ERROR: test_setting_timeout_from_environment_variable (utils_tests.test_autoreload.WatchmanReloaderTests)
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Traceback (most recent call last):
  File "/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/case.py", line 59, in testPartExecutor
    yield
  File "/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/case.py", line 628, in run
    testMethod()
  File "/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/mock.py", line 1626, in _inner
    return f(*args, **kw)
  File "/Users/poli/work/django/django/tests/utils_tests/test_autoreload.py", line 654, in test_setting_timeout_from_environment_variable
    self.assertEqual(self.RELOADER_CLS.client_timeout, 10)
AttributeError: type object 'WatchmanReloader' has no attribute 'client_timeout'

My environment:

• Mac OSX 10.14.16
• Python 3.7.4
• watchman 4.9.0

The WatchmanReloaderTests are marked with skip_unless_watchman_available, so you'll need watchman to be able to reproduce this.