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/t3311.py

@@ -24,40 +24,41 @@
 import time, sys, signal, atexit
 import pyupm_t3311 as sensorObj
 
-## Exit handlers ##
-# This function stops python from printing a stacktrace when you hit control-C
-def SIGINTHandler(signum, frame):
-	raise SystemExit
+def main():
+    ## 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)
 
-defaultDev = "/dev/ttyUSB0"
+    defaultDev = "/dev/ttyUSB0"
 
-# if an argument was specified, use it as the device instead
-if (len(sys.argv) > 1):
+    # if an argument was specified, use it as the device instead
+    if (len(sys.argv) > 1):
         defaultDev = sys.argv[1]
 
-print "Initializing..."
+    print "Initializing..."
 
-# Instantiate an T3311 instance, using MODBUS slave address 1, and
-# default comm parameters (9600, 8, N, 2)
-sensor = sensorObj.T3311(defaultDev, 1)
+    # Instantiate an T3311 instance, using MODBUS slave address 1, and
+    # default comm parameters (9600, 8, N, 2)
+    sensor = sensorObj.T3311(defaultDev, 1)
 
-# output the serial number and firmware revision
-print "Serial Number:", sensor.getSerialNumber()
-print "Firmware Revision: {0}.{1}".format(sensor.getFirmwareMajor(),
-                                          sensor.getFirmwareMinor())
-print
+    # output the serial number and firmware revision
+    print "Serial Number:", sensor.getSerialNumber()
+    print "Firmware Revision: {0}.{1}".format(sensor.getFirmwareMajor(),
+                                              sensor.getFirmwareMinor())
+    print
 
-# update and print available values every second
-while (1):
+    # update and print available values every second
+    while (1):
         # update our values from the sensor
         sensor.update()
 
@@ -73,18 +74,21 @@ while (1):
 
         # with FW revisions > 2.44, extended computed data is available
         if (sensor.extendedDataAvailable()):
-                print "Dew Point Temperature:", sensor.getDewPointTemperature(),
-                print "C /", sensor.getDewPointTemperature(True), "F"
+            print "Dew Point Temperature:", sensor.getDewPointTemperature(),
+            print "C /", sensor.getDewPointTemperature(True), "F"
 
-                print "Absolute Humidity:", sensor.getAbsoluteHumidity(), "g/m3"
+            print "Absolute Humidity:", sensor.getAbsoluteHumidity(), "g/m3"
 
-                print "Specific Humidity:", sensor.getSpecificHumidity(),
-                print "g/kg"
+            print "Specific Humidity:", sensor.getSpecificHumidity(),
+            print "g/kg"
 
-                print "Mixing Ratio:", sensor.getMixingRatio(), "g/kg"
+            print "Mixing Ratio:", sensor.getMixingRatio(), "g/kg"
 
-                print "Specific Enthalpy:", sensor.getSpecificEnthalpy(),
-                print "kJ/kg"
+            print "Specific Enthalpy:", sensor.getSpecificEnthalpy(),
+            print "kJ/kg"
 
         print
-	time.sleep(1)
+        time.sleep(1)
+
+if __name__ == '__main__':
+    main()