How to instantiate in a lazy way?
Slaunger at gmail.com
Tue Dec 2 21:45:13 CET 2008
On 2 Dec., 17:50, George Sakkis <george.sak... at gmail.com> wrote:
> > I1, Q1, I2, Q2 = bytes_to_data(buf)
> > self.__dict__["I1"] = I1
> > self.__dict__["Q1"] = Q1
> > self.__dict__["I2"] = I2
> > self.__dict__["Q2"] = Q2
> self.__dict__.update(zip(self.data_attr_names, bytes_to_data
> where data_attr_names = ("I1", "Q1", "I2", "Q2") instead of a
> frozenset. A linear search in a size-4 tuple is unlikely to be the
> bottleneck with much I/O anyway.
Thank you for this little hint, George.
I've never used update on a dict and the zip function before.
This is a nice application of these functions.
And I agree, performance is not an issue by selecting a tuple instead
of a frozenset. The bytes_to_data function is the performance
in the actual application (implemented in parent class).
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