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