Answers for "python copy"

4

python clone object

import copy

new_ob = copy.deepcopy(old_ob)
Posted by: Guest on December-29-2020
1

python copy instance

import copy

class A(object):
  def __init__(self, a)
  	self.a = a

a = A(38)

# Deepcopy
a2 = copy.deepcopy(a)

# Shallow copy -> use this if copy.deepcopy() fails
a3 = copy.copy(a)
Posted by: Guest on February-01-2021
1

python deepcopy

>>> import copy
>>> nums = [1, 2, 3]
>>> data = {'a': 10, 'b': nums}
>>> data
{'a': 10, 'b': [1, 2, 3]}
>>> data_copy = copy.copy(data)
>>> data_deep = copy.deepcopy(data)
>>> data_copy
{'a': 10, 'b': [1, 2, 3]}
>>> data_deep
{'a': 10, 'b': [1, 2, 3]}
>>> data_copy['a'] += 2
>>> nums[1:1] = [254]
>>> data
{'a': 10, 'b': [1, 254, 2, 3]}
>>> data_copy
{'a': 12, 'b': [1, 254, 2, 3]}
>>> data_deep
{'a': 10, 'b': [1, 2, 3]}
Posted by: Guest on September-25-2020
0

copyfile pyhon

from shutil import copyfile
copyfile(src, dst)
Posted by: Guest on October-03-2020
2

.copy python

new_list = list.copy()

# returns a new list without modifying the orginal list.
Posted by: Guest on January-31-2021
0

python copy list

a=[1,2,3,4]
b=a[:] 
''' now b has all elements of  a'''
Posted by: Guest on September-29-2020

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