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changing md5sum of seemingly identical AnnDatas #379

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LisaSikkema opened this issue May 19, 2020 · 2 comments
Closed

changing md5sum of seemingly identical AnnDatas #379

LisaSikkema opened this issue May 19, 2020 · 2 comments

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@LisaSikkema
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Hi!

I noticed that the md5sum of my file changes when I store my AnnData from one jupyter notebook session to an .h5ad file, then close the jupyter session, start a new session, read in the written .h5ad file and write it to a new .h5ad file. Do you know why that is?

Thanks!

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Lisa Sikkema
@ivirshup
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So, I just looked into this a bit, and it looks like this is expected for hdf5 files since they save timestamps from writing. There's some more discussion of this here: h5py/h5py#225.

@LisaSikkema
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oh yes that explains it, thanks a lot!!

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@ivirshup @LisaSikkema