How can i parse my output?

[snippsat]

I have no idea, how should i get ou's and save it to database

Have you make it into one string?
To get it database i would use a dictionary(as it almost there) or could serialize(search if you unsure what this mean) it in and back.
Using L from Grib example.

>>> record = dict(L)
>>> record
{b'CN': b'User1', b'DC': b'local', b'OU': b'GLOBAL'}

Into a database example and back to original record.

>>> import sqlite3
>>>
>>> conn = sqlite3.connect(':memory:')
>>> c = conn.cursor()
>>> c.execute("create table Test (key text, value text);")
<sqlite3.Cursor object at 0x000002E0047AE1C0>

>>> record = {b'CN': b'User1', b'DC': b'local', b'OU': b'GLOBAL'}
# Insert the dictionary 
>>> c.executemany("insert into Test values (?,?);", record.items())
<sqlite3.Cursor object at 0x000002E0047AE1C0>

# Get all
>>> rec = c.execute("select * from Test;").fetchall()
[(b'CN', b'User1'), (b'DC', b'local'), (b'OU', b'GLOBAL')]

# Back to start
>>> record = dict(rec)
>>> record
{b'CN': b'User1', b'DC': b'local', b'OU': b'GLOBAL'}