Factory exercise

.gitignore

@@ -1 +1,3 @@
-creatures.json
+creatures.json
+.idea
+*.pyc

creatures.example.json

@@ -0,0 +1,6 @@
+{
+    "fluffy": {"type":"dragon", "color":"red", "temp_of_fire":96},
+    "Giffa": {"type":"giraffe", "height":3.9, "num_of_dots":153},
+    "Chatushi": {"type":"monster", "num_of_eyes":5, "num_of_teeth":33, "num_of_legs":4},
+    "Arie": {"type":"giraffe", "height":4.4, "num_of_dots":134}
+}

factory.py

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+import sys
+import json
+
+CREATURES_LIST_FILE = "creatures.json"
+
+
+class Creature:
+
+    def __init__(self, creature_name):
+        self._creature_name = creature_name
+
+    def get_creature_name(self):
+        return self._creature_name
+
+
+class Dragon(Creature):
+
+    def __init__(self, creature_name, color, temp_of_fire):
+        Creature.__init__(self, creature_name)
+        self._color = color
+        self._temp_of_fire = temp_of_fire
+
+    def print_creature(self):
+        print "This is a Dragon, is it %s and its' fire tempature is %d. Its' name is %s."%\
+              (self._color, self._temp_of_fire, self.get_creature_name())
+
+
+class Giraffe(Creature):
+
+    def __init__(self, creature_name, height, num_of_dots):
+        Creature.__init__(self, creature_name)
+        self._height = height
+        self._num_of_dots = num_of_dots
+
+    def print_creature(self):
+        print "This is a Giraffe, is it %d meters tall and has %d dots. Its' name is %s."%\
+              (self._height, self._num_of_dots, self.get_creature_name())
+
+
+class Monster(Creature):
+
+    def __init__(self, creature_name, num_of_eyes, num_of_teeth, num_of_legs):
+        Creature.__init__(self, creature_name)
+        self._num_of_eyes = num_of_eyes
+        self._num_of_teeth = num_of_teeth
+        self._num_of_legs = num_of_legs
+
+    def print_creature(self):
+        print "This is a Monster, is has %d eyes, %d teeth and %d legs. Its' name is %s."%\
+              (self._num_of_eyes, self._num_of_teeth, self._num_of_legs,  self.get_creature_name())
+
+
+def creature_factory(creature_name, features):
+    if features["type"] == "dragon":
+        return Dragon(creature_name, features["color"], features["temp_of_fire"])
+    if features["type"] == "giraffe":
+        return Giraffe(creature_name, features["height"], features["num_of_dots"])
+    if features["type"] == "monster":
+        return Monster(creature_name, features["num_of_eyes"], features["num_of_teeth"], features["num_of_legs"])
+
+
+def name_exists(name, list):
+    if name in list:
+        return True
+    else:
+        return False
+
+
+def parser(file_name):
+    json_data = open(file_name).read()
+    data = json.loads(json_data)
+    return data
+
+
+def main():
+    creatures = parser(CREATURES_LIST_FILE)
+    if len(sys.argv) == 1:
+        for creature_name, creature_data in creatures.iteritems():
+            new_creature = creature_factory(creature_name, creature_data)
+            new_creature.print_creature()
+    elif name_exists(sys.argv[1], creatures):
+        new_creature = creature_factory(sys.argv[1], creatures[sys.argv[1]])
+        new_creature.print_creature()
+    else:
+        print "Creature not found"
+        sys.exit(1)
+
+if __name__ == '__main__':
+    main()

squares.py

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+def squares(x):
+    return [x**2 for x in range(1, x+1)]
+
+
+def dict_squares(x):
+    return {x: x**2 for x in range(1, x+1)}
+
+
+def main():
+    print squares(3)
+    print dict_squares(3)
+
+
+if __name__ == '__main__':
+    main()