rdes via Bug reports for GNU Guix schreef op zo 05-12-2021 om 13:24 [+0000]: > [... things about calibre ...] > ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] > certificate verify failed: unable to get local issuer certificate > (_ssl.c:1108)
It appears that calibre does not have SSL_CERT_DIR or SSL_CERT_FILE (see 'openssl') in its native-search-paths. So I'd suggest adding that, installing calibre again and logging out and in again (to update the environment variables). Greetings, Maxime
