Please assist with exercise below in Python

Exercise 1: read file to list Outline a design (algorithm) and write a test plan for an application to Read in a DNA sequence from either: the contents of the fasta file ( remember: a fasta file contains the descriptor line and DNA sequences) convert the contents (DNA sequence only), less the descriptor line, into one contiguous sequence (hint: remove all ' from the contents ) - Iterate through the complete sequence to display only the first letter of each codon. (hint use a for loop that iterates in steps of 3 each iteration) and assume codons begin at start of DNA sequence. Exercise 1: read file to list Outline a design (algorithm) and write a test plan for an application to Read in a DNA sequence from either: the contents of the fasta file ( remember: a fasta file contains the descriptor line and DNA sequences) convert the contents (DNA sequence only), less the descriptor line, into one contiguous sequence (hint: remove all ' from the contents ) - Iterate through the complete sequence to display only the first letter of each codon. (hint use a for loop that iterates in steps of 3 each iteration) and assume codons begin at start of DNA sequence