Spades is printing errors to stdout

[luederm]

Is your feature request related to a problem? Please describe. For generic questions use Q&A section in the Discussions forum above.

Spades prints errors not caught by argparse to stdout instead of stderr.

For an easy example run spades with an empty reads file: spades.py -1 exists.R1.fastq.gz -2 fake.R2.fastq.gz -o outdir 2> stderr.txt

This is causing errors to not be logged in my pipeline. I am using spades version 3.15.2.

Describe the solution you'd like

Errors printed to stderr.

Describe alternatives you've considered

No response

Additional context

No response

[asl]

Thanks for the suggestion. We will check whether this could be fixed easily for the next SPAdes versions