Check if pins are in locals instead of try/except

[Adafruit_Blinka-hackapet.git] / src / board.py

diff --git a/src/board.py b/src/board.py
index ebdc21f427f732a0b264ef7cdf79373c28b1bbee..9cdd379bd1e886e97a13593e81757654c74994cd 100755 (executable)
--- a/src/board.py
+++ b/src/board.py
@@ -28,7 +28,6 @@ See `CircuitPython:board` in CircuitPython for more details.
 * Author(s): cefn
 """
 import sys
-import busio
 
 import adafruit_platformdetect.constants.boards as ap_board
 from adafruit_blinka.agnostic import board_id, detector
@@ -225,15 +224,19 @@ elif "sphinx" in sys.modules:
 else:
     raise NotImplementedError("Board not supported {}".format(board_id))
 
-if SDA and SCL:
+if "SCL" in locals() and "SDA" in locals():
 
     def I2C():
         """The singleton I2C interface"""
+        import busio
+
         return busio.I2C(SCL, SDA)
 
 
-if SCLK:
+if "SCLK" in locals() and "MOSI" in locals() and "MISO" in locals():
 
     def SPI():
         """The singleton SPI interface"""
+        import busio
+
         return busio.SPI(SCLK, MOSI, MISO)