Dev env issue with Nix python builder

[burgessa23]

Has anyone run into this before?

Trying to set up the dev environment and I keep hitting this same error when I cd into the directory and haven't had a successful run yet.

============================= test session starts ==============================
platform darwin -- Python 3.12.8, pytest-8.3.3, pluggy-1.5.0
rootdir: /private/tmp/nix-build-python3.12-canopen-2.3.0.drv-0/canopen-2.3.0
configfile: pyproject.toml
testpaths: test
collecting ... ^Mcollected 120 items

test/test_eds.py .................                                       [ 14%]
test/test_emcy.py ...                                                    [ 16%]
test/test_local.py .....................                                 [ 34%]
test/test_network.py ...F.                                               [ 38%]
test/test_od.py ...............................                          [ 64%]
test/test_pdo.py ..                                                      [ 65%]
test/test_sdo.py .....................................                   [ 96%]
test/test_sync.py ..                                                     [ 98%]
test/test_time.py .                                                      [ 99%]
test/test_utils.py .                                                     [100%]

=================================== FAILURES ===================================
________________________ TestNetwork.test_send_perodic _________________________

self = <test_network.TestNetwork testMethod=test_send_perodic>

    def test_send_perodic(self):
        bus = can.interface.Bus(bustype="virtual", channel=1)
        self.network.connect(bustype="virtual", channel=1)

        task = self.network.send_periodic(0x123, [1, 2, 3], 0.01)
        time.sleep(0.1)
        # FIXME: This test is a little fragile, as the number of elements
        #        depends on the timing of the machine.
        print(f"Queue size: {bus.queue.qsize()}")
>       self.assertTrue(9 <= bus.queue.qsize() <= 13)
E       AssertionError: False is not true

test/test_network.py:65: AssertionError
----------------------------- Captured stdout call -----------------------------
Queue size: 17
------------------------------ Captured log call -------------------------------
WARNING  canopen.objectdictionary.eds:eds.py:270 Complex data type has an unknown or unsupported data type (0x40)
=========================== short test summary info ============================
FAILED test/test_network.py::TestNetwork::test_send_perodic - AssertionError: False is not true
======================== 1 failed, 119 passed in 13.31s ========================

I'm on an m2 MacBook running 14.7.2

[burgessa23]

after much trial and error, apparently I just needed to reboot 🤦🏻

[urob]

Glad the solution was so simple! I'll try to add some GHA test runners for the different OSes soon so that we also have a reference in case there are any issues.