Changes between Initial Version and Version 1 of Ticket #17339, comment 2


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Timestamp:
11/13/14 21:00:34 (8 years ago)
Author:
darij
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  • Ticket #17339, comment 2

    initial v1  
    1 There is a difference between `vertices=[]` and `vertices=None`. In the latter case, we should follow the cdd convention. In the former, we should not; this kind of exception conflicts with regular usage. Currently the constructor loses the difference between `[]` and `None` at one of its first steps (the `_make_listlist` call); this is what I think needs to be fixed.
     1There is a difference between `vertices=[]` and `vertices=None`. In the latter case, we should follow the cdd convention. In the former, we should not; this kind of exception conflicts with regular usage and forces writers of methods to special-case empty vertex sets. Currently the constructor loses the difference between `[]` and `None` at one of its first steps (the `_make_listlist` call); this is what I think needs to be fixed.