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Recently there was an accident with a chatbot that replaced its avatar set from the command line with an unrelated avatar of a contact. Both the `selfavatar` setting and the contact avatar `i` param pointed to `$BLOBDIR/avatar.png` at the time it was detected. How this happened is unclear, but it is possible that `avatar.png` was removed, unmounted or otherwise not detected by the core, and the core stored avatar received from the contact as `avatar.png`, while `selfavatar` config still pointed to `$BLOBDIR/avatar.png`. Such bugs are unavoidable even if the core itself has no bugs as we cannot rely on blobdir not reside on the faulty network filesystem, being incorrectly backed up and restored etc., so we should assume that files may be randomly removed. Then there may be dangling `$BLOBDIR/...` references in the database which may accidentally point to unrelated files, could even be an `avatar.png` file sent to the bot in private. To prevent such bugs, store blobs in blobdir subdirs with random names. Also this helps when we receive multiple attachments having the same name -- before, random filename suffixes were added to subsequent attachments, now attachments preserve their filenames which is important if they are opened in external programs.
============================ CFFI Python Bindings ============================ This package provides `Python bindings`_ to the `deltachat-core library`_ which implements IMAP/SMTP/MIME/OpenPGP e-mail standards and offers a low-level Chat/Contact/Message API to user interfaces and bots. .. _`deltachat-core library`: https://github.com/deltachat/deltachat-core-rust .. _`Python bindings`: https://py.delta.chat/