[Python-Dev] New syntax for 'dynamic' attribute access (original) (raw)
Giovanni Bajo rasky at develer.com
Tue Feb 13 11:46:28 CET 2007
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On 13/02/2007 7.39, Martin v. Löwis wrote:
And again. Apparently, people favor hasattr over catching AttributeError. I'm not sure why this is -
Because the code becomes longer, unless you want to mask other exceptions:
name = 'http_error_%d' % errcode -if hasattr(self, name):
- method = self.(name)
+try:
- method = self.(name)
+except AttributeError:
- pass
+else: if data is None: result = method(url, fp, errcode, errmsg, headers) else: result = method(url, fp, errcode, errmsg, headers, data) if result: return result return self.http_error_default(url, fp, errcode, errmsg, headers)
-- Giovanni Bajo
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