TypeError: '<' not supported between instances of 'NoneType' and 'int'

[Selucote82]

Hi all,
first of all, excuse me if the problem was solved in precedent issues, but I only saw the issue #104 tackling the same error.

This error I got after launching unicycler with the following dependencies:

Dependencies:
Program Version Status
spades.py 3.11.1 good
racon 1.4.16 good
makeblastdb 2.2.30+ good
tblastn 2.2.30+ good
bowtie2-build 2.3.4.1 good
bowtie2 2.3.4.1 good
samtools 1.6 good
java 11.0.1-internal good
pilon 1.23 good
bcftools not used

The complete error:

Traceback (most recent call last):
File "/home/software/unicycler/bin/unicycler", line 11, in
load_entry_point('unicycler==0.4.9b0', 'console_scripts', 'unicycler')()
File "/home/software/python-3.8.2/lib/python3.8/site-packages/unicycler/unicycler.py", line 162, in main
bridges += create_simple_long_read_bridges(graph, args.out, args.keep, args.threads,
File "/home/software/python-3.8.2/lib/python3.8/site-packages/unicycler/bridge_long_read_simple.py", line 131, in create_simple_long_read_bridges
bridges += simple_bridge_loops(graph, start_overlap_reads, end_overlap_reads,
File "/home/software/python-3.8.2/lib/python3.8/site-packages/unicycler/bridge_long_read_simple.py", line 355, in simple_bridge_loops
for loop_count in sorted(votes.keys()):
TypeError: '<' not supported between instances of 'NoneType' and 'int'

As I have been able to see in google, it seems to be related with the version of python. Also the break occurred in the same point than in the issue #104, as you can see in the attached file, but I tried some different options, former racon versions and also disabling this software, and the error appeared likewise. Could you be so kind as to help me?

Thank you.
unicycler.salida.txt

[rrwick]

I'm working on a new version of Unicycler (v0.5.0), and I think I see the cause of this bug, which I've hopefully now fixed (05ea9bd). Thanks for letting me know, and sorry it took me so long to get around to this! The new version will be released in the near future.

Ryan