put opalkelly source in its own subdir

miniscope_io/sources/__init__.py

@@ -1,3 +1,7 @@
 """
 Control interfaces for external hardware sources
 """
+
+from miniscope_io.sources.opalkelly.opalkelly import okDev
+
+__all__ = ["okDev"]

miniscope_io/sources/opalkelly/__init__.py

@@ -0,0 +1,7 @@
+"""
+Source classes for the opalkelly FPGA DAQ
+"""
+
+from miniscope_io.sources.opalkelly.opalkelly import okDev
+
+__all__ = ["okDev"]

tests/conftest.py

@@ -26,7 +26,7 @@ def pytest_sessionstart(session):
 @pytest.fixture(autouse=True)
 def mock_okdev(monkeypatch):
     from miniscope_io.sources.mocks import okDevMock
-    from miniscope_io.sources import opalkelly
+    from miniscope_io.sources.opalkelly import opalkelly
     from miniscope_io import stream_daq
 
     monkeypatch.setattr(opalkelly, "okDev", okDevMock)