unicodedata name for \u000a

"Martin v. Löwis" martin at v.loewis.de
Sun Aug 22 17:15:20 CEST 2004

Tor Iver Wilhelmsen wrote:
> Then why not return None or the empty string instead of raising an
> exception?

Why does a dictionary lookup raise a KeyError instead of returning
None or an empty exception? It's easy enough to add a function that
does what you want:

  def name(c):
      return unicodedata.name
    except ValueError:
      return None

Python reports failures through exceptions, not through special
return values. It might have been an option initially to return
None. Now, it cannot be changed for backwards compatibility.


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