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Virtual package python3-cffi-backend-api-9729 is provided by:

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                       Version     Architecture
+++-==========================-===========-====================================                                         
ii  python3-cffi-backend:amd64 1.15.1-5+b1 amd64        Foreign Function Interface for Python 3 calling C code - runtime

1 packages