mvpa2.base.collections.Collection

class mvpa2.base.collections.Collection(items=None)

Container of some Collectables.

Methods

clear(() -> None.  Remove all items from D.)
copy([deep, a, memo])	Create a copy of a collection.
fromkeys(...)	v defaults to None.
get((k[,d]) -> D[k] if k in D, ...)
has_key((k) -> True if D has a key k, else False)
items(() -> list of D’s (key, value) pairs, ...)
iteritems(() -> an iterator over the (key, ...)
iterkeys(() -> an iterator over the keys of D)
itervalues(...)
keys(() -> list of D’s keys)
pop((k[,d]) -> v, ...)	If key is not found, d is returned if given, otherwise KeyError is raised
popitem(() -> (k, v), ...)	2-tuple; but raise KeyError if D is empty.
setdefault((k[,d]) -> D.get(k,d), ...)
update(source[, copyvalues, memo])	Parameters:
values(() -> list of D’s values)
viewitems(...)
viewkeys(...)
viewvalues(...)

Parameters:items : all types accepted by update()

Methods

clear(() -> None.  Remove all items from D.)
copy([deep, a, memo])	Create a copy of a collection.
fromkeys(...)	v defaults to None.
get((k[,d]) -> D[k] if k in D, ...)
has_key((k) -> True if D has a key k, else False)
items(() -> list of D’s (key, value) pairs, ...)
iteritems(() -> an iterator over the (key, ...)
iterkeys(() -> an iterator over the keys of D)
itervalues(...)
keys(() -> list of D’s keys)
pop((k[,d]) -> v, ...)	If key is not found, d is returned if given, otherwise KeyError is raised
popitem(() -> (k, v), ...)	2-tuple; but raise KeyError if D is empty.
setdefault((k[,d]) -> D.get(k,d), ...)
update(source[, copyvalues, memo])	Parameters:
values(() -> list of D’s values)
viewitems(...)
viewkeys(...)
viewvalues(...)

copy(deep=True, a=None, memo=None)

Create a copy of a collection.

By default this is going to return a deep copy of the collection, hence no data would be shared between the original dataset and its copy.

Parameters:

deep : boolean, optional

If False, a shallow copy of the collection is return instead. The copy contains only views of the values.

a : list or None

List of attributes to include in the copy of the dataset. If None all attributes are considered. If an empty list is given, all attributes are stripped from the copy.

memo : dict

Developers only: This argument is only useful if copy() is called inside the __deepcopy__() method and refers to the dict-argument memo in the Python documentation.

update(source, copyvalues=None, memo=None)

Parameters:

source : list, Collection, dict

copyvalues : None, shallow, deep

If None, values will simply be bound to the collection items’ values thus sharing the same instance. ‘shallow’ and ‘deep’ copies use ‘copy’ and ‘deepcopy’ correspondingly.

memo : dict

Developers only: This argument is only useful if copy() is called inside the __deepcopy__() method and refers to the dict-argument memo in the Python documentation.