Bug#949468: satpy: autopkgtest regression due to new pygac

[Gianfranco Costamagna]

Source: satpy
Version: 0.19.1-1
Severity: serious

Hello, looks like pygac update regressed the testsuite.
I requested a new run in Debian, but in the meanwhile you can see a run here:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/amd64/s/satpy/20200120_195040_eac9b@/log.gz

or here:
http://debomatic-amd64.debian.net/distribution#unstable/satpy/0.19.1-1/autopkgtest

(and even inside the build process itself the error is thrown out, but for some reasons the testsuite errors are somewhat ignored at least in that part)

Gianfranco