,---- | The coverage dictionary is called "c" and the trace function | "t". The reason for these short names is that Python looks up variables | by name at runtime and so execution time depends on the length of | variables! In the bottleneck of this application it's appropriate to | abbreviate names to increase speed. `----
It was written when 2.1 was the most recent stable version. I wonder if it still applies for 2.2 and later? According to my hasty tests it doesn't seem to be so. I didn't have very large unit test files at hand, though.
It's no longer correct (if it ever was correct). Python internalises 'short' strings (including identifiers) so that comparison can generally be done by means of identity checks.
Py> long_and_really_complicated_var_name = 1 Py> "long_and_really_complicated_var_name" is "long_and_really_complicated_var_n ame" True Py> "long_and_really_complicated_non_var_name" is "long_and_really_complicated_n on_var_name" True Py> "long_and_really_complicated_non_var_name" * 20 is "long_and_really_complica ted_non_var_name" * 20 False
Ah, the wonderful efficiencies of immutable types. . .
Cheers, Nick.
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Nick Coghlan | [EMAIL PROTECTED] | Brisbane, Australia
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http://boredomandlaziness.skystorm.net
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