Get rid of _drivers package and use relative imports

Change-Id: I71fea77340c278319f2dd0d98591f81adddaa6a8

src/aiy/toneplayer.py

@@ -20,11 +20,10 @@
 :any:`aiy.pins.BUZZER_GPIO_PIN`.
 """
 
-
-import time
 import re
+import time
 
-from aiy._drivers._buzzer import PWMController
+from ._buzzer import PWMController
 
 
 class Rest:

src/aiy/trackplayer.py

@@ -25,8 +25,8 @@
 import re
 import time
 
-from aiy._drivers._buzzer import PWMController
-from aiy.toneplayer import Note
+from .toneplayer import Note
+from ._buzzer import PWMController
 
 
 class Command:

src/aiy/_drivers/_transport.py → src/aiy/vision/_transport.py

@@ -19,8 +19,7 @@
 import socket
 import struct
 
-from aiy._drivers import _spicomm
-
+from . import _spicomm
 
 class _SpiTransport:
     """Communicate with VisionBonnet over SPI bus."""

src/aiy/vision/inference.py

@@ -28,8 +28,8 @@
 import time
 from collections import namedtuple
 
-import aiy.vision.proto.protocol_pb2 as pb2
-from aiy._drivers._transport import make_transport
+from .proto import protocol_pb2 as pb2
+from ._transport import make_transport
 
 logger = logging.getLogger(__name__)
 

src/tests/spicomm_test.py

@@ -5,13 +5,13 @@
 
 import aiy.vision.proto.protocol_pb2 as pb2
 
-from aiy._drivers._spicomm import SPICOMM_DEV
-from aiy._drivers._spicomm import SPICOMM_IOCTL_TRANSACT
-from aiy._drivers._spicomm import SPICOMM_IOCTL_TRANSACT_MMAP
+from aiy.vision._spicomm import SPICOMM_DEV
+from aiy.vision._spicomm import SPICOMM_IOCTL_TRANSACT
+from aiy.vision._spicomm import SPICOMM_IOCTL_TRANSACT_MMAP
 
-from aiy._drivers._spicomm import AsyncSpicomm
-from aiy._drivers._spicomm import SyncSpicomm
-from aiy._drivers._spicomm import SyncSpicommMmap
+from aiy.vision._spicomm import AsyncSpicomm
+from aiy.vision._spicomm import SyncSpicomm
+from aiy.vision._spicomm import SyncSpicommMmap
 
 
 @contextlib.contextmanager