if else failing inside for loop [on hold]

for i in inputm[1:]:    
    if i[0].find('::') == -1:       
        print('\n',"This is not a valid record.")
    else: 
        print('\n',i[0].split(':')[0]
                  ,str(datetime.strptime(i[0].split(':')[1],'%Y%m%d'))[:10]
                  ,i[1]
                  ,round(sum( float(v) if v else 0.0 for v in i[2:6])/4,2)
                  ,i[6] if Counter(i[6][0:23])  == Counter("http://www.google.com") else '                              '
                  ,'Valid URL' if Counter(i[6][0:23])  == Counter("http://www.google.com")  else 'Invalid URL'                
              )

Error :-

IndentationError: unindent does not match any outer indentation level

I keep getting a syntax error on the else statement and I am unsure why it keeps producing this error.What do I do?