Hello. I’m writing a custom ContentsManager manager for Jupyter Notebooks and gotten to creating new files. Originally my file_exists function always returned True and I’ve gotten Cannot POST to files, use PUT instead error, same as this issue . Following that I amended file_exists function to ret…

@manics checkpoints don’t matter, but thank you for the advice. Here’s the answer: exist - false exist_dir for dir - true exist_dir for file - false That’s the ticket

Is your file_exists method always returning a fixed value? What happens if you change it so it returns True if the file exists and False if it doesn’t?

[image] manics: Is your file_exists method always returning a fixed value? Originally, yes, but now I’m just trying to understand what it must return so file creation goes along. [image] manics: What happens if you change it so it returns True if the file exists and False if it doesn’t? …

I recently wrote my own ContentsManager and the file_exists method is implemented as you’d expect. Is your code visible in a public repository?

Notebook creation fails through. I think notebook creation happens here and it seems like file_exists should always return true and dir_exists should always return false yet this configuration causes infinite loop described above.

What are you using for your Checkpoints ? When I wrote my ContentsManager I also needed to write a Checkpoints class before saving notebooks would work properly.

Ooh, I’m not using checkpoints for now. Is it a requirement? I’ll write a small checkpoints wrapper and see if it helps. Thanks for the idea. Docs don’t specify that checkpoints class is required,so I thought they are optional.

Creating new files with custom ContentsManager

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manics January 12, 2020, 10:07pm 9

I’m not sure if it’s strictly required, it might be possible to disable it but I couldn’t figure out how so ended up writing my own.

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Creating new files with custom ContentsManager

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