Indentation problems 3.7

Question

Here is the code

def has_stop(dna,frame) :
   stop_codon_found=False
   stop_codons =['tga','tag','taa']
   for i in range(frame,len(dna),3) : 
      codon =dna[i:i+3].lower()
      if codon in stop_codons:
         stop_codon_found=True
         break
   Return stop_codon_found

Python Jupyter notebook turn 'break' in RED. Why? and running it gives "File "", line 10 Return stop_codon_found ^ SyntaxError: invalid syntax

Well, if I move 'break' one space to the left, leaving the letter b in 'break' sticking out and lining up r in 'break' with s in 'stop_codon_found', break turns GREEN. It of course says "unindent does not match any outer indentation level". If I hit one indentation to the right, 'break' also turns GREEN, but it says 'unexpected indent'

What is going on?

Answer 1

Try:

def has_stop(dna,frame) :
   stop_codon_found=False
   stop_codons =['tga','tag','taa']
   for i in range(frame,len(dna),3) : 
      codon =dna[i:i+3].lower()
      if codon in stop_codons:
         stop_codon_found=True
         break
   return stop_codon_found

In order to have your return within the function it has to be one indentation level under def .... Also it's return not Return