import re

a = '''idden\" name=\"fid\" id=\"fid\" value=\"9410924\" \/>\n <input type=\"hidden\" name=\"hash\" id=\"hash\" value=\"1260718814_aa0256f3b89294f28b\" \/>\n <input type=\"hidden\" name=\"cats\" id=\"privacy_cats\" \/>\n <input type=\"hi'''
hash_val = re.findall(r'''\"hash\"\ value\=\"(.*?)\"''', a)
print hash_val