Pymongo Error in PyCharm debugger only - django

Question

I am seeing a very weired error while debugging my code in PyCharm. The offending lines that cause the exception are
a = db.links.list_indexes()
or the following:
db.links.create_index("created", expireAfterSeconds=settings.EXPIRY_PERIOD, background=True)
My code runs normally inside PyCharm if I simply do run tests, while trying to debug it causes the following error:
======================================================================
ERROR: test_detail_view (sharescreening.tests.TestIndex)
----------------------------------------------------------------------
Traceback (most recent call last):
File "sharescreening/tests.py", line 53, in test_detail_view
response = self.client.get('/')
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/test/client.py", line 500, in get
**extra)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/test/client.py", line 303, in get
return self.generic('GET', path, secure=secure, **r)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/test/client.py", line 379, in generic
return self.request(**r)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/test/client.py", line 466, in request
six.reraise(*exc_info)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 119, in get_response
resolver_match = resolver.resolve(request.path_info)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 365, in resolve
for pattern in self.url_patterns:
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 401, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 395, in urlconf_module
self._urlconf_module = import_module(self.urlconf_name)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/gevent/builtins.py", line 93, in __import__
result = _import(*args, **kwargs)
File "sharescreening/urls.py", line 17, in <module>
from .views import put_links, index, get_shares, ShowDetails
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/gevent/builtins.py", line 93, in __import__
result = _import(*args, **kwargs)
File "sharescreening/views.py", line 22, in <module>
a = db.links.list_indexes()
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/collection.py", line 1269, in list_indexes
with self._socket_for_primary_reads() as (sock_info, slave_ok):
File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/mongo_client.py", line 699, in _socket_for_reads
with self._get_socket(read_preference) as sock_info:
File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/mongo_client.py", line 663, in _get_socket
server = self._get_topology().select_server(selector)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/topology.py", line 121, in select_server
address))
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/topology.py", line 97, in select_servers
self._error_message(selector))
ServerSelectionTimeoutError: No servers found yet
----------------------------------------------------------------------
Ran 4 tests in 32.173s
FAILED (errors=1)
I have no clue why the tests pass in the command line, and in simple running mode but not in debug mode. Can someone shed some light on this problem here?

Answer 1

It turns out that the issue was really a problem with the combination or using gevent with the debugger.
If you this problem, it is resolved by upgrading your pycharm version to 2006.1.
More details can be found in the issue in PYCharm tracker