Creating a list in Python with multiple copies of a given object in a single line

Question

Suppose I have a given Object (a string \"a\", a number - let\'s say 0, or a list [\'x\',\'y\'] )

I\'d like to create list containing many copies of thi

Answer 1

I hope this helps somebody. I wanted to add multiple copies of a dict into a list and came up with:

>>> myDict = { "k1" : "v1" }
>>> myNuList = [ myDict.copy() for i in range(6) ]
>>> myNuList
[{'k1': 'v3'}, {'k1': 'v3'}, {'k1': 'v3'}, {'k1': 'v3'}, {'k1': 'v3'}, {'k1': 'v3'}]
>>> myNuList[1]['k1'] = 'v4'
>>> myNuList
[{'k1': 'v3'}, {'k1': 'v4'}, {'k1': 'v3'}, {'k1': 'v3'}, {'k1': 'v3'}, {'k1': 'v3'}]

I found that:

>>> myNuList = [ myDict for i in range(6) ]

Did not make fresh copies of the dict.