towhee.functional.mixins.list.ListMixin

class towhee.functional.mixins.list.ListMixin

Bases: object

Mixin to make dc an extension of python list.

Methods

append	Append item to data collection.
clear	Clear a DataCollection.
copy	Copy a DataCollection.
count	Count an element in DataCollection.
extend	Extend a DataCollection.
insert	Insert data into a DataCollection.
pop	Extend a DataCollection.
remove	Remove element from DataCollection.
reverse	Reverse a DataCollection.
sort	Sort a DataCollection.

append(*args) → DataCollection

Append item to data collection.

Parameters:

item (Any) – the item to append

Returns:

self

Return type:

DataCollection

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([0, 1, 2])
>>> dc.append(3).append(4)
[0, 1, 2, 3, 4]

clear(*args) → DataCollection

Clear a DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 2, 3])
>>> dc.clear()
[]

copy(*args) → DataCollection

Copy a DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 2, 3])
>>> dc_1 = dc.copy()
>>> dc_1._iterable.append(4)
>>> dc, dc_1
([1, 2, 3], [1, 2, 3, 4])

count(*args) → int

Count an element in DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 2, 3])
>>> dc.count(1)
1

extend(*args) → DataCollection

Extend a DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 2, 3])
>>> dc.extend([4, 5])
[1, 2, 3, 4, 5]

insert(*args) → DataCollection

Insert data into a DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 2, 3])
>>> dc.insert(0, 0)
[0, 1, 2, 3]

pop(*args) → DataCollection

Extend a DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 2, 3])
>>> dc.pop()
[1, 2]

remove(*args) → DataCollection

Remove element from DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 2, 3])
>>> dc.remove(1)
[2, 3]

reverse(*args) → DataCollection

Reverse a DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 2, 3])
>>> dc.reverse()
[3, 2, 1]

sort(*args) → DataCollection

Sort a DataCollection.

Examples:

>>> from towhee import DataCollection
>>> dc = DataCollection([1, 4, 3])
>>> dc.sort()
[1, 3, 4]