Cannot run dexseq_count.py as documented

[D-Metzger]

Tried running:

python dexseq_count.py –s yes –p yes –f bam –r pos flat_file.gff alignment_file.bam DEXseq_exon.txt

And got this error:

dexseq_count.py: Error: Please provide three arguments

If I run it with the options at the end it does seem to work:

python dexseq_count.py flat_file.gff alignment_file.bam DEXseq_exon.txt –s yes –p yes –f bam –r pos

Any idea of what is going on? Did I misunderstand something? Thanks so much!