在循环中验证raw_input-英雄云拓展知识分享

我正在尝试创建一个验证循环，以检查用户输入针对定义内涵的列表，但是由于某种缘由，代码会永久堕入循环中，要求用户重新输入该值。我经过将打印命令添加到循环中，然后将输入数据存储到属性词典中，但它仿佛从未满足==标准以触发从for循环触发中断的标准。

到至今为止为止，这是我的代码，真的很感谢我对我要去的何处的任何建议：

attributes = {'Name': 'None', 'Class': 'None', 'Strength': 3, 'Agility': 3, 'Wounds': 3, 'Intelligence': 3}
attributes['Name'] = raw_input('What is your character\'s name?')
attributes['Class'] = raw_input('Choose your character\'s class, enter Warrior, Mage, Ranger or Thief.')
#this is the section I am struggling with!
for values in attributes:
if attributes['Class'] != "Warrior" or "Mage" or "Ranger" or "Thief":
attributes['Class'] = raw_input('Please choose either Warrior, Mage, Ranger or Thief.')
continue
elif attributes['Class'] == "Warrior" or "Mage" or "Ranger" or "Thief":
break
if attributes["Class"] == "Warrior":
attributes["Strength"] += 1
attributes["Wounds"] += 1
elif attributes["Class"] == "Mage":
attributes["Intelligence"] += 2
elif attributes["Class"] == "Ranger":
attributes["Strength"] += 1
attributes["Agility"] += 1
elif attributes["Class"] == "Thief":
attributes["Agility"] += 1
attributes["Intelligence"] += 1
print
print 'Name: ' + attributes['Name']
print 'Class: ' + attributes['Class']
print 'STR: ' + str(attributes['Strength']), 'AGI: ' + str(attributes['Agility']), 'WOU: ' + str(attributes['Wounds']) ,'INT: ' + str(attributes['Intelligence'])