======================================================================
ERROR: test_client (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: test_client
Traceback (most recent call last):
  File "/opt/python/3.7/lib/python3.7/unittest/loader.py", line 434, in _find_test_path
    module = self._get_module_from_name(name)
  File "/opt/python/3.7/lib/python3.7/unittest/loader.py", line 375, in _get_module_from_name
    __import__(name)
  File "/home/durin/work/mongo-python-driver/test/test_client.py", line 889
    self.client.fsync(async=True)
                          ^
SyntaxError: invalid syntax


======================================================================
ERROR: test_collection (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: test_collection
Traceback (most recent call last):
  File "/opt/python/3.7/lib/python3.7/unittest/loader.py", line 434, in _find_test_path
    module = self._get_module_from_name(name)
  File "/opt/python/3.7/lib/python3.7/unittest/loader.py", line 375, in _get_module_from_name
    __import__(name)
  File "/home/durin/work/mongo-python-driver/test/test_collection.py", line 64, in <module>
    from test.test_client import IntegrationTest
  File "/home/durin/work/mongo-python-driver/test/test_client.py", line 889
    self.client.fsync(async=True)
                          ^
SyntaxError: invalid syntax


======================================================================
ERROR: test_legacy_api (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: test_legacy_api
Traceback (most recent call last):
  File "/opt/python/3.7/lib/python3.7/unittest/loader.py", line 434, in _find_test_path
    module = self._get_module_from_name(name)
  File "/opt/python/3.7/lib/python3.7/unittest/loader.py", line 375, in _get_module_from_name
    __import__(name)
  File "/home/durin/work/mongo-python-driver/test/test_legacy_api.py", line 53, in <module>
    from test.test_client import IntegrationTest
  File "/home/durin/work/mongo-python-driver/test/test_client.py", line 889
    self.client.fsync(async=True)
                          ^
SyntaxError: invalid syntax