diff --git a/sensors.py b/sensors.py
index 6793e40..8822639 100644
--- a/sensors.py
+++ b/sensors.py
@@ -1,21 +1,41 @@
 #!/usr/bin/python3
 import os, json, sys
 
-try:
-    sensor_group = sys.argv[1]
-    sensor = sys.argv[2]
-except IndexError:
-    print("usage: python3 "+sys.argv[0]+" <sensor group> <sensor>")
-    sys.exit(1)
-
-sensors_process = os.popen("sensors -j")
-temps_str = sensors_process.read()
-sensors_process.close()
-
-temps = json.loads(temps_str)
+# comments added for Panini
 
 try:
+    # get arguments from command line
+    sensor_group = sys.argv[1] # 1st argument
+    sensor = sys.argv[2] # 2nd arggument
+except IndexError: # could not get arguments bc the arguments array doesn't contain enough elements
+    print("usage: python3 "+sys.argv[0]+" <sensor group> <sensor>") # show usage information, sys.argv[0] is the name of the python file itself
+    sys.exit(1) #exit with error code 1 bc we want scripts to be able to reliably tell that soemthing went wrong
+
+sensors_process = os.popen("sensors -j") # run 'sensors -j' to get a json formatted list of hardware sensors and their values
+temps_str = sensors_process.read() # read output of 'sensors -j'
+sensors_process.close() # close handle bc we don't need or want to have it around anymore
+
+temps = json.loads(temps_str) # load json string into a python dict
+
+try:
+    # this is ... well ... a oneliner I would use...
     print([value for key, value in temps[sensor_group][sensor].items() if key.endswith("input")][0])
-except KeyError:
+    # temps is a dict with multiple dicts inside it
+    # first step is to get the desired sensor group
+    #   temps[sensor_group]
+    # then we get the desired sensor from that sensor group
+    #   temps[sensor_group][sensor]
+    # from that, we go through all the items of that dict putting the keys and their corresponding values in two variables
+    #   for key, value in temps[sensor_group][sensor].items()
+    # check whether the key ends with "input"
+    #   if key.endswith("input")
+    # and if it does, we put it in an array
+    #   [value for key, value in temps[sensor_group][sensor].items() if key.endswith("input")]
+    # we take the first entry of that array
+    #   [value for key, value in temps[sensor_group][sensor].items() if key.endswith("input")][0]
+    # and put it on the console
+    #   print([value for key, value in temps[sensor_group][sensor].items() if key.endswith("input")][0])
+
+except KeyError: # if we can't find an element in the dict that corresponds to the sensor group / sensor given on the command line
     print("Sensor \""+sensor_group+":"+sensor+" not found!")
-    sys.exit(1)
+    sys.exit(1) #exit with error code 1 bc we want scripts to be able to reliably tell that soemthing went wrong