PlasmaCalcs.tools.iterables.SymmetricPairMapping

class PlasmaCalcs.tools.iterables.SymmetricPairMapping(mapping={})

Bases: object

mapping with keys pairs, where order of the pair doesn’t matter.

mapping: dict of {(obj1, obj2): value}

The keys (obj2, obj1) and (obj1, obj2) will be treated the same way,

when getting/setting/deleting items, and when checking if key in self.

[EFF] For efficiency, only stores one of these pairs (the one where obj1 <= obj2).

__init__(mapping={})

Methods

__init__([mapping])
clear()
copy()
items()
keys()
pop(key, default)
update(other)
values()

clear()

remove all known items from self.

copy()

return a shallow copy of self.

pop(key, default)

remove self[key], and return its value. if key not in self, return default.

update(other)

update self with other.

other: dict of {(obj1, obj2): value}