这些都有助于与机器的接口，不过与机器的接口向来不是程序编写中最困难的部分。
While this is helpful for interfacing with machines, that's rarely the hardest part of writing an application.
String变量的存在使得编写更多交互的程序变得简单而且有助于纠正认为数据就是数字的倾向。
Having String available makes it easier to write more interactive programs and helps to counter the common predisposition to think of data as numeric.
两个其他特性有助于编写易读的Python程序，并且这两者都遵循前面所用的书的比喻。
Two other features help you write easy-to-read programs in Python, and they both follow from the book analogy used earlier.
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