Blackjack card counter

counter.py

#!/bin/python3
import curses
import sys
import os
from math import floor

decks = 6
bet_unit = 10

def main(win, decks):
    total_cards = decks * 52
    running_count = 0
    true_count = 0
    bet = bet_unit
    menu = "Low (z), Neutral (x), High (c), Shuffle (f)\n"

    key=""
    curses.init_pair(1, curses.COLOR_MAGENTA, curses.COLOR_BLACK)
    curses.curs_set(0)
    win.bkgd(' ', curses.color_pair(1) | curses.A_BOLD)
    win.clear()
    win.addstr(menu)

    while 1:
        try:
           key = win.getkey()
           total_cards -= 1
           if total_cards == 0 or key == 'f':
               total_cards = decks * 52
               running_count = 0
               true_count = 0
               bet = bet_unit
           else:
               if key == 'c':
                   running_count -= 1
               if key == 'z':
                   running_count += 1

           decks_remaining = (total_cards / 52)
           true_count = floor((running_count / decks_remaining) * 10) / 10

           if true_count < 2:
               bet = bet_unit
           if true_count >= 2:
               bet = bet_unit * 2
           if true_count >= 3:
               bet = bet_unit * 4
           if true_count >= 4:
               bet = bet_unit * 8

           win.clear()
           win.addstr(menu)
           win.addstr("-------------------\n")
           win.addstr(f"Cards remaining: {str(total_cards)}\n")
           win.addstr(f"True count: {str(true_count)}\n")
           win.addstr(f"Bet: {str(bet)}\n")
           win.addstr("-------------------\n")
           # Illustrious 18 Deviations
           if true_count >= 3:
               win.addstr("Insurance: Take\n")
           if true_count >= 5:
               win.addstr("T,T vs 5: Split\n")
           if true_count >= 4:
               win.addstr("T,T vs 6: Split\n")
           if true_count > 0:
               win.addstr("16 vs 10: Stand\n")
           if true_count >= 5:
               win.addstr("16 vs 9: Stand\n")
           if true_count >= 4:
               win.addstr("15 vs 10: Stand\n")
           if true_count <= -2:
               win.addstr("13 vs 3: Hit\n")
           if true_count <= -1:
               win.addstr("13 vs 2: Hit\n")
           if true_count < 0:
               win.addstr("12 vs 4: Hit\n")
           if true_count <= -1:
               win.addstr("12 vs 5: Hit\n")
           if true_count <= -1:
               win.addstr("12 vs 6: Hit\n")
           if true_count >= 2:
               win.addstr("12 vs 3: Stand\n")
           if true_count >= 3:
               win.addstr("12 vs 2: Stand\n")
           if true_count >= 1:
               win.addstr("11 vs A: Double\n")
           if true_count >= 4:
               win.addstr("10 vs T: Double\n")
           if true_count >= 4:
               win.addstr("10 vs A: Double\n")
           if true_count >= 1:
               win.addstr("9 vs 2: Double\n")
           if true_count >= 3:
               win.addstr("9 vs 7: Double\n")

           if key == os.linesep:
              break
        except Exception as e:
           pass

try:
    curses.wrapper(main, decks)
except KeyboardInterrupt:
    sys.exit(0)