理解defensive programming

• Defensive Programming

  Defensive programming is a form of defensive design intended to ensure the continuing function of a piece of software under unforeseen circumstances.

  Defensive programming practices are often used where high avaiability, safety, or security is needed.

  Secure programming is the subset of defensive programming concerned with computer security.

• 简单理解

  加入assert，try/except等功能，让代码可以更好的应对error

• References

1. Programming with Python: Defensive Programming