[Python-ideas] PEP 505 (None coalescing operators) thoughts

[Emile van Sebille]

On 9/29/2015 9:20 AM, Rob Cliffe wrote:
> Why not
>
> def __init__(self, vertices=None, edges=None, weights=None,
> source_nodes=None):
>      self.vertices     = vertices     if vertices     is not None else []
>      self.edges        = edges        if edges        is not None else []
>      self.weights      = weights      if weights      is not None else {}
>      self.source_nodes = source_nodes if source_nodes is not None else []

I don't understand why not:

       self.vertices     = vertices     or []
       self.edges        = edges        or []
       self.weights      = weights      or {}
       self.source_nodes = source_nodes or []


Emile