Starting Point mssqlserver

@tasidonya
i tried using Python3 & this is the result. may be the alternatives didn’t worked for me, i switched frm 2.7 to 3.7. Please help!
Traceback (most recent call last):
File “mssqlclient.py”, line 25, in
from impacket import version, tds
File “/usr/lib/python3/dist-packages/impacket/tds.py”, line 35, in
from OpenSSL import SSL
File “/usr/lib/python3/dist-packages/OpenSSL/init.py”, line 8, in
from OpenSSL import crypto, SSL
File “/usr/lib/python3/dist-packages/OpenSSL/crypto.py”, line 12, in
from cryptography import x509
File “/usr/lib/python3/dist-packages/cryptography/x509/init.py”, line 8, in
from cryptography.x509.base import (
File “/usr/lib/python3/dist-packages/cryptography/x509/base.py”, line 18, in
from cryptography.x509.extensions import Extension, ExtensionType
File “/usr/lib/python3/dist-packages/cryptography/x509/extensions.py”, line 20, in
from cryptography.hazmat.primitives import constant_time, serialization
File “/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/constant_time.py”, line 11, in
from cryptography.hazmat.bindings._constant_time import lib
ModuleNotFoundError: No module named ‘_cffi_backend’