parallel_align_seqs_pynast.py gives a misleading error message when pynast is not installed

[wdwvt1]

You can recreate this by removing pynast from your path and running:

parallel_align_seqs_pynast.py -h

The output will be:

optparse.OptionValueError: option --pairwise_alignment_method: invalid choice: 'uclust' (choose from )

Reasonably a good install will have PyNAST, but if we are going to have an error here it should at least make sense.

[ElDeveloper]

👍

On (Oct-23-15|21:47), Will Van Treuren wrote:

You can recreate this by removing pynast from your path and running:

parallel_align_seqs_pynast.py -h

The output will be:

optparse.OptionValueError: option --pairwise_alignment_method: invalid choice: 'uclust' (choose from )

Reasonably a good install will have PyNAST, but if we are going to have an error here it should at least make sense.

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