Q: cutadapt 2.0 with Python 3.6.7 -> 'str' object has no attribute 'name'

I upgraded to version 2.0 just a few hours ago … now running a simple using conda

cutadapt --cores 8 --adapter AGATCGGAAGAGC -A AGATCGGAAGAGC --interleaved xxx.r1.fq.gz xxx.r2.fq.gz

raises an exception:

This is cutadapt 2.0 with Python 3.6.7
Command line parameters: --cores 8 --adapter AGATCGGAAGAGC -A AGATCGGAAGAGC --interleaved xxx.r1.fq.gz xxx.r2.fq.gz
Processing reads on 8 cores in paired-end mode ...
Traceback (most recent call last):
  File "/path/to/bin/cutadapt", line 12, in <module>
    sys.exit(main())
  File /path/to/anaconda3/envs/ngs/lib/python3.6/site-packages/cutadapt/__main__.py", line 787, in main
    stats = runner.run()
  File "/path/to/anaconda3/envs/ngs/lib/python3.6/site-packages/cutadapt/pipeline.py", line 684, in run
    raise e
AttributeError: 'str' object has no attribute 'name'

There went probably sth wrong during upgrade? Omitting --cores 8 just works fine…? Any idea?

[marcelm]

Cutadapt 2.1 is now released. pip install should work already. conda install should also work in a couple of minutes.

[marcelm]

That’s right, it’s not released. I’ll prepare a release now.