PROTON-2324 Support Python 3.9 (#320)
PROTON-2324 Support Python 3.9 (#320)


apache/qpid-proton,astitcher/qpid-proton,astitcher/qpid-proton,ChugR/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,ChugR/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,ChugR/qpid-proton,gemmellr/qpid-proton,ChugR/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,ChugR/qpid-proton,astitcher/qpid-proton,gemmellr/qpid-proton,apache/qpid-proton,gemmellr/qpid-proton,gemmellr/qpid-proton,apache/qpid-proton,ChugR/qpid-proton,gemmellr/qpid-proton,apache/qpid-proton