[Python-Dev] Pep 550 and None/masking (original) (raw)
Jim J. Jewett jimjjewett at gmail.com
Sun Aug 27 12:00:51 EDT 2017
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Does setting an ImplicitScopeVar to None set the value to None, or just remove it?
If it removes it, does that effectively unmask a previously masked value?
If it really sets to None, then is there a way to explicitly unmask previously masked values?
Perhaps the initial constructor should require an initial value (defaulting to None) and the docs should give examples both for using a sensible default value and for using a special "unset" marker.
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