copy

Shallow and deep copy operations, similar to Python's copy module.

import copy

Functions

copy.copy(x: object) -> object

Return a shallow copy of x. For Sharpy collections (List{T}, Dict{K,V}, Set{T}), a new collection is created with the same element references. For value types the value is returned as-is. For other reference types, MemberwiseClone is invoked via reflection.

Parameters:

• x (object) -- The object to copy.

Returns: A shallow copy of x.

a = [1, 2, 3]
b = copy.copy(a)    # new list, same element references

copy.deepcopy(x: object) -> object

Return a deep copy of x. For Sharpy collections, elements are recursively deep-copied. An identity dictionary tracks already-copied objects to handle circular references. For non-collection objects, falls back to a shallow copy.

Parameters:

• x (object) -- The object to deep-copy.

Returns: A deep copy of x.

a = [[1, 2], [3, 4]]
b = copy.deepcopy(a)
b[0].append(99)
# a is unchanged: [[1, 2], [3, 4]]