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+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+import common
+import Test_Driver as driver
+
+def read(sensor, pin):
+ # Get a reading from C driver code.
+ result, humidity, temp = driver.read(sensor, pin)
+ if result in common.TRANSIENT_ERRORS:
+ # Signal no result could be obtained, but the caller can retry.
+ return (None, None)
+ elif result != common.DHT_SUCCESS:
+ # Some kind of error occured.
+ raise RuntimeError('Error calling DHT test driver read: {0}'.format(result))
+ return (humidity, temp)