disambiguate skips outputing non-ambiguous records

[averagehat]

#103 (comment)

it looks like cur_seqs is set to [] and gets returned.

bio_bits/bio_bits/fasta.py

Lines 97 to 112 in 8976ba4

	cur_seqs = []
	# Go through each sequence again and and generate ambiguous bases
	for seq in amb_seqs:
	#print("nt: {0}".format(nt))
	# build up permutations for the current ambiguous base
	for base in amb_bases:
	#print("base: {0}".format(base))
	#print("seq[:i] + base + seq[i+1:]".format(seq[:i], base, seq[i+1:]))
	cur_seqs.append(seq[:i] + base + seq[i+1:])
	#print("cur_seqs: {0}".format(cur_seqs))
	amb_seqs = cur_seqs
	if len(amb_seqs) > MAX_PERMS:
	sys.stderr.write("Sequence {0} has {1} ambiguous bases that would produce {2} permutations and was skipped\n".format(seq_id, len(a_bases), total_perms))
	return []
	#print("amb_seqs: {0}".format(amb_seqs))
	return amb_seqs

should be able to check total_perms or return [seq_str] if cur_seqs is empty