concrete.util.unnone module¶
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concrete.util.unnone.
dun
(d)¶ If l is None return an empty dict, else return l. Simplifies iteration over dict fields that might be unset.
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concrete.util.unnone.
lun
(l)¶ If l is None return an empty list, else return l. Simplifies iteration over list fields that might be unset.
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concrete.util.unnone.
sun
(s)¶ If l is None return an empty set, else return l. Simplifies iteration over set fields that might be unset.