Assign same dictionary into multiple variable

Question

I'm currently studying Python, and I've encountered something I don't understand. What I want to do is:

I have variables a, b, c, and I want to assign a dictionary k={'sd':'asd', 'we':'qwe'}, so I typed like this:

a=k
b=k
c=k

And if I edit a like, a['are']='friend', I found out that b and c also has are key even though I only edit a.

I don't understand cuz I a, b, and c are all different variable, and how they are "linked" each other..? And what should I do for what I supposed to do?

See also: nedbatchelder.com/text/names.html

user3515670
– user3515670

2022-03-07 23:53:09 +00:00
Commented Mar 7, 2022 at 23:53 — user3515670
– user3515670, Commented Mar 7, 2022 at 23:53

Chris · Accepted Answer · 2023-06-20 06:05:26Z

2

There's only one dictionary, referenced by three variables, so making changes to it via any one variable reflects everywhere. You might want to make copies of the dictionary.

a = k.copy()
b = k.copy()
c = k.copy()

edited Jun 20, 2023 at 6:05

answered Mar 7, 2022 at 23:48

Chris

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