Write a Python script that return the most similar sequence to a query. The input to 
your program is

1. A query sequence obtained using the input command, and
2. A filename containing sequences in FASTA format. 

The output should be the

1. name of the most similar sequence,
2. the best sequence,
3. score of the alignment with the best sequence,
4. and the alignment of query with the best sequence.

Submit a hardcopy on Mar 1st in class.

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BONUS Question worth 10 points

Rank the sequences in the filename in descending order by their similarity with the 
query. The input is the same as above but the output should be the names of 
sequences and their scores but ranked in descending order by score.