避免分配给未定义的类属性的最佳设计决策
考虑以下代码：
class Test:
def __init__(self):
self.historical = 5
t = Test()
# correct
print(t.historical)
# ops .. I made a mistake!
# an attribute error is thrown
#print(t.history)
# let's redefine the variable
# correct!
t.historical = 10
# ops ... I made a mistake!
t.history = 15 # <-- I want Python to throw an exception here
print(t.historical)
print(t.history)
在这段代码中，我犯了一个错误：我分配给 history，而正确的属性名称是 historical。
当我分配给 history 时，如何让 Python 抛出异常？
实现这一目标的最佳设计决策是什么？
Consider the following code:
class Test:
def __init__(self):
self.historical = 5
t = Test()
# correct
print(t.historical)
# ops .. I made a mistake!
# an attribute error is thrown
#print(t.history)
# let's redefine the variable
# correct!
t.historical = 10
# ops ... I made a mistake!
t.history = 15 # <-- I want Python to throw an exception here
print(t.historical)
print(t.history)
In this code, I made a mistake: I assigned to history while the correct attribute name was historical.
How can I have Python throw an exception when I assign to history?
What is the best design decision to achieve this?
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