python_examples: Reformatted, self-checking, executable

* Moved body of each python example to main.  This allows for basic
      load module testing for CI
    * General cleanup of python modules (crlf/tabs/prints/etc)
    * Chmod'ed to 755 to allow running examples without specifying the
      python interpreter
    * Added ctest for loading python2/3 modules
    * Added jniclasscode pragma for java swig interface files.
    * Updated check_examplenames.py module to check all languages vs. a
      cxx example name
    * Added tests for checking python module and test loading
    * Added 'make test' to travis-ci run (run ctests)
    * Print a more meaningful message when not building cxx docs into
      python modules
    * Updated check_clean.py to only check java wrapper files
    * ENABLED ctests for UPM
    * Deleted using_carrays.py python example - this is covered by other
      examples

Signed-off-by: Noel Eck <noel.eck@intel.com>

examples/python/adxrs610.py

@@ -24,32 +24,36 @@
 import time, sys, signal, atexit
 import pyupm_adxrs610 as sensorObj
 
-# Instantiate a ADXRS610 sensor on analog pin A0 (dataout), and
-# analog A1 (temp out) with an analog reference voltage of
-# 5.0
-sensor = sensorObj.ADXRS610(0, 1, 5.0)
+def main():
+    # Instantiate a ADXRS610 sensor on analog pin A0 (dataout), and
+    # analog A1 (temp out) with an analog reference voltage of
+    # 5.0
+    sensor = sensorObj.ADXRS610(0, 1, 5.0)
 
-## Exit handlers ##
-# This function stops python from printing a stacktrace when you hit control-C
-def SIGINTHandler(signum, frame):
-	raise SystemExit
+    ## Exit handlers ##
+    # This function stops python from printing a stacktrace when you hit control-C
+    def SIGINTHandler(signum, frame):
+        raise SystemExit
 
-# This function lets you run code on exit
-def exitHandler():
-	print "Exiting"
-	sys.exit(0)
+    # This function lets you run code on exit
+    def exitHandler():
+        print "Exiting"
+        sys.exit(0)
 
-# Register exit handlers
-atexit.register(exitHandler)
-signal.signal(signal.SIGINT, SIGINTHandler)
+    # Register exit handlers
+    atexit.register(exitHandler)
+    signal.signal(signal.SIGINT, SIGINTHandler)
 
-# set a deadband region around the zero point to report 0.0 (optional)
-sensor.setDeadband(0.015);
+    # set a deadband region around the zero point to report 0.0 (optional)
+    sensor.setDeadband(0.015);
 
-# Every tenth of a second, sample the ADXRS610 and output it's
-# corresponding temperature and angular velocity 
+    # Every tenth of a second, sample the ADXRS610 and output it's
+    # corresponding temperature and angular velocity
 
-while (1):
+    while (1):
         print "Vel (deg/s):", sensor.getAngularVelocity()
         print "Temp (C):", sensor.getTemperature()
-	time.sleep(.1)
+        time.sleep(.1)
+
+if __name__ == '__main__':
+    main()