Parsing a search string

[M.E.Farmer]

As I noted before shlex requires a file like object or a open file .
py> import shlex
py> a = shlex.shlex('fgfgfg dgfgfdgfdg')
py> a.get_token()
Traceback (most recent call last):
File "<input>", line 1, in ?
File ".\shlex.py", line 74, in get_token
raw = self.read_token()
File ".\shlex.py", line 100, in read_token
nextchar = self.instream.read(1)
AttributeError: 'str' object has no attribute 'read'

M.E.Farmer