allow sequence strings to be used in clustalw

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2693 5a81b35b-ba03-0410-adc8-b2c5c5119f08

modules/bindings/pymod/clustalw.py

@@ -12,6 +12,12 @@ def ClustalW(seq1, seq2=None, clustalw=None, keep_files=False):
       seq_list=seq.CreateSequenceList()
       seq_list.AddSequence(seq1)
       seq_list.AddSequence(seq2)
+    elif isinstance(seq1, str) and isinstance(seq2, str):
+      seq1=CreateSequence("seq1", seq1)
+      seq2=CreateSequence("seq2", seq2)
+      seq_list=seq.CreateSequenceList()
+      seq_list.AddSequence(seq1)
+      seq_list.AddSequence(seq2)
     else:
       LogError("WARNING: Specify at least two Sequences")
       return