getting NoneType vs int error in clustering step

[hyphaltip]

Getting this error

Traceback (most recent call last):
  File "/opt/linux/rocky/8.x/x86_64/pkgs/amptk/1.6/bin/amptk", line 8, in <module>
    sys.exit(main())
  File "/bigdata/operations/pkgadmin/opt/linux/centos/8.x/x86_64/pkgs/amptk/1.6/lib/python3.10/site-packages/amptk/amptk.py", line 784, in main
    mod.main(arguments)
  File "/bigdata/operations/pkgadmin/opt/linux/centos/8.x/x86_64/pkgs/amptk/1.6/lib/python3.10/site-packages/amptk/OTU_cluster.py", line 190, in main
    numKept, numDropped = amptklib.validateorientation(tmp, sort_out, uchime_out, passingOTUs)
  File "/bigdata/operations/pkgadmin/opt/linux/centos/8.x/x86_64/pkgs/amptk/1.6/lib/python3.10/site-packages/amptk/amptklib.py", line 1450, in validateorientation
    if qCount > tCount:
TypeError: '>' not supported between instances of 'NoneType' and 'int'
[08:46:43 PM]: OS: Rocky Linux 8.8, 96 cores, ~ 527 GB RAM. Python: 3.10.0

This is because qCount is None not 0?

amptk/amptk/amptklib.py

Line 1448 in 1eb9631

qCount = OTUCounts.get(cols[0])

Running this command

amptk cluster -i $BASE.demux.fq.gz -o $BASE --uchime_ref 16S --usearch usearch9 --map_filtered -e 0.9 --cpus $CPU --unoise

but I think also seen even if --unoise is left off? maybe we have some low abundance OTUs that end up with 0 mapping when re-mapped?

amptk cluster -i $BASE.demux.fq.gz -o $BASE --uchime_ref 16S --usearch usearch9 --map_filtered -e 0.9 --cpus $CPU 

I have a fix which seems to work and will submit a pull for this but curious if reason why qCount would be None instead of 0 as a data error or just an untested condition?