is there any principle when writing python function
tjreedy at udel.edu
Tue Aug 23 20:29:38 CEST 2011
On 8/23/2011 11:22 AM, Steven D'Aprano wrote:
> Even 7±2 is probably excessive: I find that I'm most comfortable with
> functions that perform 4±1 chunks of work. An example from one of my
> def find(self, prefix):
> """Find the item that matches prefix."""
> prefix = prefix.lower() # Chunk #1
> menu = self._cleaned_menu # Chunk #2
> for i,s in enumerate(menu, 1): # Chunk #3
> if s.lower().startswith(prefix):
> return i
> return None # Chunk #4
> So that's three one-line chunks and one three-line chunk.
In terms of different functions performed (see my previous post), I see
That is 9, which is enough.
Terry Jan Reedy
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