I'm using python2 and i want to pull down all proteins ids in uniprot_sprot.fasta that have this pattern with there positions within sequence, however I faced problems especially with getting all patterns including the overlapped ones. Help appreciated and i want to say that I have very little experience in python

import re
import sys 

x=sys.argv[1] .................. x= "[SR][SR]"
with (open("uniprot_sprot.fasta", 'r')) as fi:
       out = {}
       name = ""
       for line in fi:
           print line.split()
           if (line.startswith(">>>")):
               name = line[3:]
                out[name] = []
                print name
           else:
               match= re.compile(x)
               for match in re.finditer(x, line):
                   out[name].append(match)
print (out)