Is there a way to compress content from an strIO object?

[ValerioParisMitritsakis]

I am creating a file held by an strIO object which I would then like to compress via py7zr alas it will only accept actual files and direcories and not strIO objects. Is there any chance you could add this feature?

[miurahr]

Because 7zip is binary compression tool, string compression by writestr is a just a helper method to encode with UTF-8.

You can write wrapper function to loop reading line or string from StrIO object and calling writestr.

[ValerioParisMitritsakis]

Thank you for taking the time to respond. Would that work with any type of file? Sometimes I am holding excel files (.xlsx format) on strIO objects which I would like to compress (and email) without actually saving their contents on disk.

[miurahr]

I don't know how to hold excel binary data into strIO object, so I don't know a answer.