gistfile1.txt

no_arch_data = None
name = epoch = vresion = release = arch = None
for [....]:
    # current arch is valid
    if re.findall(".*(x86_64|s390x|i86|ppc64le|aarch64)$", str(nevra.arch)):
        name = nevra.name
        epoch = epoch or nevra.epoch
        version = nevra.version
        release = nevra.release
        arch = nevra.arch
        break
    # there is no arch present and current arch is None
    if nevra.arch is None:
        no_arch_data = nevra
    # arch is not valid, move on to next iteration
    else:
        continue
else:  # This else goes with the for loop: https://docs.python.org/3/tutorial/controlflow.html#break-and-continue-statements-and-else-clauses-on-loops
    name = nevra.name
    epoch = epoch or nevra.epoch
    version = nevra.version
    release = nevra.release
    arch = nevra.arch