I made a script with the help of rody blog but i also want to convert longest orf gene in CDS

I tried this code:

Genome_Seq = open("C:\\Users\\cnn\\Desktop\\MS(BI)\\Bioinformatics 1\\Droso.txt") 

Genetic_Codes = { 
    'ATA':'I', 'ATC':'I', 'ATT':'I', 'ATG':'M', 
    'ACA':'T', 'ACC':'T', 'ACG':'T', 'ACT':'T', 
    'AAC':'N', 'AAT':'N', 'AAA':'K', 'AAG':'K', 
    'AGC':'S', 'AGT':'S', 'AGA':'R', 'AGG':'R', 
    'CTA':'L', 'CTC':'L', 'CTG':'L', 'CTT':'L', 
    'CCA':'P', 'CCC':'P', 'CCG':'P', 'CCT':'P', 
    'CAC':'H', 'CAT':'H', 'CAA':'Q', 'CAG':'Q', 
    'CGA':'R', 'CGC':'R', 'CGG':'R', 'CGT':'R', 
    'GTA':'V', 'GTC':'V', 'GTG':'V', 'GTT':'V', 
    'GCA':'A', 'GCC':'A', 'GCG':'A', 'GCT':'A', 
    'GAC':'D', 'GAT':'D', 'GAA':'E', 'GAG':'E', 
    'GGA':'G', 'GGC':'G', 'GGG':'G', 'GGT':'G', 
    'TCA':'S', 'TCC':'S', 'TCG':'S', 'TCT':'S', 
    'TTC':'F', 'TTT':'F', 'TTA':'L', 'TTG':'L', 
    'TAC':'Y', 'TAT':'Y', 'TAA':'_', 'TAG':'_', 
    'TGC':'C', 'TGT':'C', 'TGA':'_', 'TGG':'W'} 

def translate_dna(Genome_Seq): 
    """Return the translation of a DNA sequence"""
    Genome_Seq=Genome_Seq.read()
    last_codon_start = len(Genome_Seq) - 2 
    protein = "" 

    # for each codon in the dna, append an amino acid to the protein
    for start in range(0,last_codon_start,3): 
        codon = Genome_Seq[start:start+3] 
        amino_acid = Genetic_Codes.get(Genome_Seq.upper(),'X') 
        protein = protein + amino_acid

    return protein 

#Defining and Declaring of Function
def orfFINDER(dna,frame):

    start_codon = ['ATG']
    stop_codons = ['TGA', 'TAG', 'TAA']
    start_positions = []
    stop_positions = []
    num_starts=0
    num_stops=0


    for i in range(frame-1,len(dna),3):
        codon=dna[i:i+3]
        if codon in start_codon:
            start_positions += str(i+1).splitlines()
        if codon in stop_codons:
            stop_positions += str(i+1).splitlines()

    for line in stop_positions:
        num_stops += 1

    for line in start_positions:
        num_starts += 1

    orffound = {}

    if num_stops >=1 and num_starts >=1: #first statment: the number of stop codons and start condos are greater than or equal to 1;

        orfs = True
        stop_before = 0
        start_before = 0

        if num_starts > num_stops:
            num_runs = num_starts
        if num_stops > num_starts:
            num_runs = num_stops
        if num_starts == num_stops:
            num_runs = num_starts

        position_stop_previous = 0
        position_start_previous = 0
        counter = 0

        for position_stop in stop_positions:

            position_stop = int(position_stop.rstrip()) + 2

            for position_start in start_positions:

                position_start = position_start.rstrip()

                if int(position_start) < int(position_stop) and int(position_stop) > int(position_stop_previous) and int(position_start) > int(position_stop_previous):

                    counter += 1
                    nameorf = "ORF"+str(counter)
                    position_stop_previous += int(position_stop) - int(position_stop_previous)
                    position_start_previous += int(position_start) - int(position_start_previous)
                    sizeorf = int(position_stop) - int(position_start) + 1

                    orffound[nameorf] = position_start,position_stop,sizeorf,frame

                else:

                    pass

    else:

        orfs = False

    return orffound
#FUNCTION END


 #READ FASTA FILE AND SAVE HEADERS AND SEQUENCES IN A DICTIONARY
Genome_Seqs={}

for Line in Genome_Seq:
    Line = Line.rstrip()
    if Line[0] == '>':
        Words=Line.split() 
        Name=Words[0][1:]
        Genome_Seqs[Name]=''
    else:
        Genome_Seqs[Name] = Genome_Seqs[Name] + Line





#DEFINE FRAME TO FIND ORF
#if frame = 1, start from the first position in the sequence
frame= int(input("Enter Frame Number: "))


#EXECUTE THE ORFFINDER FUNCTION
for i in Genome_Seqs.items():
    header= i[0]
    seq = i[1]
    orf = orfFINDER(seq,frame)
    print("\nThe Total ORF Found in frame" ,frame, "is : " ,len(orf) ,'\n\n' ) 
    for i in orf.items():
        numorf=i[0]
        startorf=orf[numorf][0]
        stoporf=orf[numorf][1]
        lengthorf=orf[numorf][2]
        frameorf=orf[numorf][3] 
        print (numorf,"starts from",startorf,"bp and stop at",stoporf,"bp , length:",lengthorf,", Frame:",frameorf,'\n')
        if lengthorf >= 1503:
            print(numorf , "in frame" ,frameorf, "is legimate ORF as it contains more than 500 Base Pairs b/w start and stop codon and also contains more than 500 amino acids so we predict that it would be a gene \n","\nlength of Predicted gene: ",lengthorf,"bp")

Genome_Seq.close()

I stored genetic codes in dictionary but i dont know how to call orf converted into protein through codon