Frustrating Tic-Tac-Toe

Frustrating Tic-tac-toe is a Tic-tac-toe game, written in Python and played in the terminal. Players have the choice to play it, either in Multi-player against each other, or in Single-player, against the frustrating computer player.
Why is it so frustrating?
Because as a player, you cannot possibly win against the computer, the best chances you have is to get a draw.

Requirements

Python3

Starting the game on *nix

Very simple, just type:

$ ./game.py

in your terminal.
Or since this is a python program, you can also enter

$ python3 ./game.py

How to play

When prompted please enter '1' or '2' to play either Single-player or local Multi-player respectively. Afterwards a grid similiar to this form should appear in your terminal.

The numbers denote which number on the keyboard you have to press, starting with the upper left and going to the lower right.