Best Python code snippet using toolium_python
copy и модуль copy.py
Source: copy и модуль copy.py
1# ÐопÑобÑем поÑабоÑаÑÑ Ð±ÐµÐ· импоÑÑиÑованного модÑлÑ2a = [1, 2, 3]3b = a.copy()4b.insert(2, [5, 6])5print(b)6print(a) # [1, 2, 3], а Ñо без <b = a.copy()> бÑло Ð±Ñ [1, 2, [5, 6], 3]7# ___________________________________________________________________________________________8# ÐоÑабоÑаем Ñ Ð¸Ð¼Ð¿Ð¾ÑÑиÑованнÑм модÑлем9from copy import copy, deepcopy10# copy пÑедназнаÑена Ð´Ð»Ñ ÐºÐ¾Ð¿Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð±ÑекÑов, коÑоÑÑе ÐÐ ÑодеÑÐ¶Ð°Ñ Ð²Ð»Ð¾Ð¶ÐµÐ½Ð½Ñе ÑлеменÑÑ11test_1 = [1, 2, 3, [1, 2, 3]]12test_copy = copy(test_1)13test_copy[3].append(4)14print(test_copy)15# видим, ÑÑо здеÑÑ copy не ÑпÑавлÑеÑÑÑ16print(test_1)17# deepcopy пÑедназнаÑена Ð´Ð»Ñ ÐºÐ¾Ð¿Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð±ÑекÑов, коÑоÑÑе ÑодеÑÐ¶Ð°Ñ Ð²Ð»Ð¾Ð¶ÐµÐ½Ð½Ñе ÑлеменÑÑ18test_2 = [1, 2, 3, [1, 2, 3]]19test_deepcopy = deepcopy(test_2)20test_deepcopy[3].append(4)21print(test_deepcopy)...
deep_copy_and_shallow_copy_lesson.py
1"""2ÐовеÑÑ
ноÑÑÐ½Ð°Ñ ÐºÐ¾Ð¿Ð¸Ñ ÑÐ¾Ð·Ð´Ð°ÐµÑ Ð½Ð¾Ð²Ñй ÑоÑÑавной обÑекÑ,3 и заÑем (по меÑе возможноÑÑи) вÑÑавлÑÐµÑ Ð² него ÑÑÑлки на обÑекÑÑ,4 наÑ
одÑÑиеÑÑ Ð² оÑигинале.56ÐлÑÐ±Ð¾ÐºÐ°Ñ ÐºÐ¾Ð¿Ð¸Ñ ÑÐ¾Ð·Ð´Ð°ÐµÑ Ð½Ð¾Ð²Ñй ÑоÑÑавной обÑекÑ,7 и заÑем ÑекÑÑÑивно вÑÑавлÑÐµÑ Ð² него копии обÑекÑов,8 наÑ
одÑÑиÑ
ÑÑ Ð² оÑигинале.9"""1011import copy1213test_1 = [1, 2, 3, [1, 2, 3]]14test_copy = copy.copy(test_1)15print(test_1, test_copy)1617test_copy[3].append(4)18print(test_1, test_copy)1920test_1 = [1, 2, 3, [1, 2, 3]]21test_deepcopy = copy.deepcopy(test_1)22test_deepcopy[3].append(4)
...
timeit 使用.py
Source: timeit 使用.py
...4# def test_copy(inv):5# return copy.copy(inv)6#7#8# def test_deepcopy(inv):9# return copy.deepcopy(inv)10#11#12# dct = {str(i): i for i in range(100)}13#14#15# def timeit_copy():16# from timeit import timeit17# print(timeit('mian().test_copy(dct)', 'from __main__ import test_copy, dct'))18# print(timeit('test_deepcopy(dct)', 'from __main__ import test_deepcopy, dct'))19#20#21# if __name__ == '__main__':22# timeit_copy()23from timeit import timeit24import copy25c =[1,2,3,4,5,[1,2,3,4]]...
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