메달별 상품타갈 확률 구해봤습니다

import random    
    
BronzeWin=0    
SilverWin=0    
GoldWin=0    
PlatinumWin=0    
DiamondWin=0    
 DTW=0    
PTW=0    
GTW=0    
STW=0    
BTW=0    
 BronzeNum = 5    
SilverNum = 4    
GoldNum = 3    
PlatinumNum = 2    
DiamondNum = 1    
  def chance():    
    global BronzeNum, SilverNum, GoldNum, PlatinumNum, DiamondNum, BronzeWin, SilverWin, GoldWin, PlatinumWin, DiamondWin    
    
    TotalNum = (BronzeNum * 1 + SilverNum * 2 + GoldNum * 3 + PlatinumNum * 5 + DiamondNum * 7)    
    
    BronzeChance = 1 / TotalNum    
    SilverChance = 2 / TotalNum    
    GoldChance = 3 / TotalNum    
    PlatinumChance = 5 / TotalNum    
    DiamondChance = 7 / TotalNum    
    
    Weight = [BronzeChance * BronzeNum, SilverChance * SilverNum, GoldChance * GoldNum, PlatinumChance * PlatinumNum,    
              DiamondChance * DiamondNum]    
    
    random_player = random.choices(["동", "은", "금", "백금", "다이아"], Weight)[0]    
    
    if random_player == "동":    
        BronzeNum -= 1    
 BronzeWin += 1    
 elif random_player == "은":    
        SilverNum -= 1    
 SilverWin += 1    
 elif random_player == "금":    
        GoldNum -= 1    
 GoldWin += 1    
 elif random_player == "백금":    
        PlatinumNum -= 1    
 PlatinumWin += 1    
 elif random_player == "다이아":    
        DiamondNum -= 1    
 DiamondWin += 1    
 TryNum=int(input("시행횟수"))    
    
for i in range(TryNum):    
    for i in range(3):    
        chance()    
    if DiamondWin>=1:    
        DTW+=1    
 if PlatinumWin>=1:    
        PTW+=1    
 if GoldWin>=1:    
        GTW+=1    
 if SilverWin>=1:    
        STW+=1    
 if BronzeWin>=1:    
        BTW+=1    
 DiamondNum=1    
 PlatinumNum=2    
 GoldNum=3    
 SilverNum=4    
 BronzeNum=5    
 DiamondWin=0    
 PlatinumWin=0    
 GoldWin=0    
 SilverWin=0    
 BronzeWin=0    
 TW = DTW + PTW + GTW + STW + BTW    
print("메달별 한번이라도 뽑힐 확률",f"다이아: {DTW/TryNum}",f"플레: {PTW/TryNum/2}",f"금: {GTW/TryNum/3}",f"은: {STW/TryNum/4}",f"동: {BTW/TryNum/5}\n",)