Use correct python convention for what's private and what is part of …

…the public api of the class, also python style method names

TDDMicroExercises/python/TextConverter/unicode_to_html_converter.py

@@ -5,7 +5,7 @@ class UnicodeFileToHtmlTextConverter(object):
     def __init__(self, full_filename_with_path):
         self.full_filename_with_path = full_filename_with_path
 
-    def convertToHtml(self):
+    def convert_to_html(self):
         f = open(self.full_filename_with_path, "r")
         html = ""
         for line in f:

TDDMicroExercises/python/TirePressureMonitoringSystem/tire_pressure_monitoring.py

@@ -18,17 +18,14 @@ def sample_pressure():
 class Alarm(object):
 
     def __init__(self):
-        self.low_pressure_threshold = 17
-        self.high_pressure_threshold = 21
-        self.sensor = Sensor()
-        self.alarm_on = False
-        self.alarm_count = 0
+        self._low_pressure_threshold = 17
+        self._high_pressure_threshold = 21
+        self._sensor = Sensor()
+        self.is_alarm_on = False
+        self._alarm_count = 0
 
     def check(self):
-        psi_pressure_value = self.sensor.pop_next_pressure_psi_value()
-        if psi_pressure_value < self.low_pressure_threshold or self.high_pressure_threshold < psi_pressure_value:
-            self.alarm_on = True
-            self.alarm_count += 1
-
-    def is_alarm_on(self):
-        return self.alarm_on 
+        psi_pressure_value = self._sensor.pop_next_pressure_psi_value()
+        if psi_pressure_value < self._low_pressure_threshold or self._high_pressure_threshold < psi_pressure_value:
+            self.is_alarm_on = True
+            self._alarm_count += 1