How to use the pfio.InitError function in pfio
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thomasmacpherson / piface / python / piface / emulator.py View on Github 
def __init__(self, spi_liststore_lock):
gtk.gdk.threads_init() # init the gdk threads
threading.Thread.__init__(self)
self.spi_liststore_lock = spi_liststore_lock
# a bit of spaghetti set up
emulator_parts.pfio = pfio
emulator_parts.rpi_emulator = self
self.spi_visualiser_section = emulator_parts.SpiVisualiserFrame(self)
global pfio_connect
try:
pfio.init()
pfio_connect = True
except pfio.InitError:
print "Could not connect to the SPI module (check privileges). Starting emulator assuming that the PiFace is not connected."
pfio_connect = False
emulator_parts.pfio = None
self.emu_window = gtk.Window()
self.emu_window.connect("delete-event", gtk.main_quit)
self.emu_window.set_title(WINDOW_TITLE)
# emu screen
self.emu_screen = emulator_parts.EmulatorScreen(EMU_WIDTH, EMU_HEIGHT, EMU_SPEED)
self.emu_screen.show()
# board connected msg
if pfio_connect:
msg = "Pi Face detected!"
else:
