Quote:
Originally Posted by pwalker8
Is there some reason you can't simply re-install the older version?
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Quote:
Originally Posted by DNSB
The old version is Python 2 compatible. Calibre 5.0.1 requires Python 3 compatibility....
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Perhaps pwalker8 meant to re-install the old version of calibre. That will work to restore DeDRM, but beware!
Once you open a library in Calibre 5 it changes it in a way that is potentially incompatible with calibre versions prior to 4.23. So if you revert do not use an older version of calibre than that one.
From "Backwards incompatibilities" in
New in calibre 5.0:
Quote:
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Because of the support for library wide annotations, the database format was slightly changed. While calibre 4.23 is able to open and operate with calibre 5 databases, older versions of calibre may have trouble.
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