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Moment of zen
Figure 3.1: Moment of zen: Two between functions
You'll notice that our top level functions have two blank lines between them. This is conventional for modern Python code.
According to the PEP 8 style-guide it's customary to use two blank lines between module-level functions. We find this convention has served us well, making code easier to navigate. Similarly, we use single blank lines for logical breaks within functions.