copy() seems to behave as deepcopy() in IJulia notebook

[weikou]

Hi,

I found a confusing inconsistency between the julia REPL and IJulia notebook.

When I open an IJulia notebook and type in

a = [[1,2,3],[4,5,6]]
b = copy(a)
a[1][1] = 11
b

b does not change (in the IJulia notebook). So, copy() acts the same as deepcopy() here.
However, in the normal Julia REPL, as copy() is not recursive, so b[1][1] is changed to 11.

I am using:
Julia Version 1.8.1
Commit afb6c60d69a (2022-09-06 15:09 UTC)
Platform Info:
OS: Linux (x86_64-linux-gnu)
CPU: 4 × Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-13.0.1 (ORCJIT, ivybridge)
Threads: 1 on 4 virtual cores

My package version of IJulia is: IJulia v1.24.2

[fredrikekre]

I can't reproduce this issue. What version of IJulia are you using? Does it happen in a fresh notebook with no packages loaded?

[weikou]

Dear Fredrik,Ok thanks for your response, that's funny. As I wrote, I am using IJulia version 1.24.2I did try again on a fresh notebook to be sure and got the same result as what I described earlier...All the best, WiebkeVon meinem/meiner Galaxy gesendet -------- Ursprüngliche Nachricht --------Von: Fredrik Ekre ***@***.***> Datum: 01.09.23 15:50 (GMT+01:00) An: "JuliaLang/IJulia.jl" ***@***.***> Cc: Wiebke Scholz ***@***.***>, Author ***@***.***> Betreff: Re: [JuliaLang/IJulia.jl] copy() seems to behave as deepcopy() in IJulia notebook (Issue #1093) I can't reproduce this issue. What version of IJulia are you using? Does it happen in a fresh notebook with no packages loaded? —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you authored the thread.Message ID: ***@***.***>

[JamesWrigley]

I also cannot reproduce this on the latest Julia/IJulia versions. @weikou does it still happen for you?

[JamesWrigley]

I'm going to close this because I can't come up with a reproducer, but if you can reproduce it with the latest Julia/IJulia versions feel to reply here and I'll reopen it.