[Biopython] Using ClustalW Webtool

[Ömer]

To make a multiple alignment based on WebTools, I followed the instructions
in Tutorial, but I have a problem with creating outfile for Clustalw where
it says:

"By default ClustalW will generate an alignment and guide tree file with
names based on the input FASTA file, in this case opuntia.aln and
opuntia.dnd, but you can override this or make it explicit:"

However, it does not generate these files. What could be the problem and how
can I solve it?

Thanks,
Greetings