Empty¶
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class
part.
Empty
(*args)¶ Bases:
Generic
[part.atomic.TO
],part.utils.Singleton
,part.atomic.Atomic
[part.atomic.TO
]Empty set class.
The
Empty
class (which inherits from theAtomic
class) represent the empty set. There is only one instance of this class.-
__str__
()¶ Return str(self).
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__hash__
()¶ Return hash(self).
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__or__
(other)¶ Return self|other.
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__and__
(other)¶ Return self^other.
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__sub__
(other)¶ Return self-other.
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__xor__
(other)¶ Return self^other.
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__invert__
()¶ Return ~self.
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before
(other, strict=True, reverse=False)¶ See
Atomic.before()
.
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meets
(other, strict=True, reverse=False)¶ See
Atomic.meets()
.
-
overlaps
(other, strict=True, reverse=False)¶ See
Atomic.overlaps()
.
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starts
(other, strict=True, reverse=False)¶ See
Atomic.starts()
.
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during
(other, strict=True, reverse=False)¶ See
Atomic.during()
.
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finishes
(other, strict=True, reverse=False)¶ See
Atomic.finishes()
.
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