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/ta12200.py

@@ -24,31 +24,33 @@
 import time, sys, signal, atexit
 import pyupm_ta12200 as upmTa12200
 
-# Instantiate a TA12-200 sensor on analog pin A0
-myElectricitySensor = upmTa12200.TA12200(0)
+def main():
+    # Instantiate a TA12-200 sensor on analog pin A0
+    myElectricitySensor = upmTa12200.TA12200(0)
 
+    ## Exit handlers ##
+    # This stops python from printing a stacktrace when you hit control-C
+    def SIGINTHandler(signum, frame):
+        raise SystemExit
 
-## Exit handlers ##
-# This stops python from printing a stacktrace when you hit control-C
-def SIGINTHandler(signum, frame):
-	raise SystemExit
+    # This lets you run code on exit,
+    # including functions from myElectricitySensor
+    def exitHandler():
+        print "Exiting"
+        sys.exit(0)
 
-# This lets you run code on exit,
-# including functions from myElectricitySensor
-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)
+    # get the data every 50 milliseconds
+    while(1):
+        maxVal = myElectricitySensor.highestValue()
+        current = myElectricitySensor.milliAmps(maxVal)
 
+        outputStr = "Max ADC Value: %s, current: %smA" % (maxVal, current)
+        print outputStr
+        time.sleep(.1)
 
-# get the data every 50 milliseconds
-while(1):
-	maxVal = myElectricitySensor.highestValue()
-	current = myElectricitySensor.milliAmps(maxVal)
-
-	outputStr = "Max ADC Value: %s, current: %smA" % (maxVal, current)
-	print outputStr
-	time.sleep(.1)
+if __name__ == '__main__':
+    main()