#How would I clean this code/shorten it (most of it is login)

How would I clean this code/shorten it (most of it is login)

#Import
import random
import time
import re
##################################################################################################################################
#Defining value
i = 0
Player1Points = 0
Player2Points = 0
Player1Tiebreaker = 0
Player2Tiebreaker = 0
Winner_Points = 0
##################################################################################################################################
#Authorisation/Registration
#Login
def login():
 x = 0
 UserNumber = 1
 login = False
 found = False
 placeholder = True
 NoLowercase = True
 NoUppercase = True
 NoNumber = True
 NoSymbol = True
 NoSymbolPlaceHolder = False
 while login == False:
 while found == False:
 player = input("Has User{} got an account? Y/N: ".format(UserNumber))
 if player == "Y" or player == "y":
 user = input("Input User{}'s username: ".format(UserNumber))
 password = input("\nInput your password: ")
 user = user.lower()
 user = user.replace(" ","")
 password = password.replace(" ","")
 with open('Usernames.TXT') as file:
 for line in file:
 uu, pp = line.strip().split(':')
 if user == uu and password == pp:
 print("\nUser found")
 if x == 0:
 user1 = user
 elif x == 1:
 user2 = user
 found = True
 x = 1
 UserNumber = 2
 break
 if not found:
 print("\nUser not found\n")
#Register username 
 elif player == "N" or player == "n":
 UsernameModule = False

 while UsernameModule != True:
 RegisterUsername = input("\nInput your desired username: ")
 RegisterUsername = RegisterUsername.lower()
 RegisterUsername = RegisterUsername.replace(" ","")
 if len(RegisterUsername) <= 16 and len(RegisterUsername) >= 4:
 RegisterUsernameValidation = input("\nInput your desired username again: ")
 RegisterUsernameValidation = RegisterUsernameValidation.lower()
 RegisterUsernameValidation = RegisterUsernameValidation.replace(" ","")

 if RegisterUsername != RegisterUsernameValidation:
 print("\nThe username you have inputted is not the same, please try again.")
 elif RegisterUsername == RegisterUsernameValidation:
 print("\nThe username you have inputted match.")
 print("\nYour username is:",RegisterUsernameValidation)
 UsernameModule = True
 elif len(RegisterUsername) > 16 or len(RegisterUsername) < 4:
 print("\nSorry, your username is either shorter than 4 characters or longer than 16 characters.")
#Register password

 PasswordModule = False
 while PasswordModule != True:
 RegisterPassword = input("\nInput your desired password: ")

#Checking if password has symbols, numbers, upper and lower case
 N = 0
 N2 = 1
 while N2 < 17:
 if N == 0:
 RegisterPassword = RegisterPassword.replace(" ","")
 else:
 placeholder1 = True
 RegisterPassword1 = RegisterPassword[N:N2]
 if RegisterPassword1.islower() == True: # there is lowercase
 NoLowercase = False
 else:
 placeholder1 = True
 if RegisterPassword1.isupper() == True:
 NoUppercase = False
 else:
 placeholder1 = True
 if RegisterPassword1.isdigit() == True:
 NoNumber = False
 else:
 placeholder1 = True
 if RegisterPassword1 == "[" or RegisterPassword1 == "@" or RegisterPassword1 == "_" or RegisterPassword1 == "!" or RegisterPassword1 == "#" or RegisterPassword1 == "$" or RegisterPassword1 == "%" or RegisterPassword1 == "^" or RegisterPassword1 == "&" or RegisterPassword1 == "*" or RegisterPassword1 == "(" or RegisterPassword1 == ")" or RegisterPassword1 == "<" or RegisterPassword1 == ">" or RegisterPassword1 == "?" or RegisterPassword1 == "/" or RegisterPassword1 == "\\" or RegisterPassword1 == "|" or RegisterPassword1 == "}" or RegisterPassword1 == "{" or RegisterPassword1 == "~" or RegisterPassword1 == ":" or RegisterPassword1 == "]":
 NoSymbolPlaceHolder = True
 else:
 placeholder1 = True
 if NoSymbolPlaceHolder == True:
 NoSymbol = False
 else:
 placeholder1 = True
 N = N + 1
 N2 = N2 + 1
 if len(RegisterPassword) > 7 and len(RegisterPassword) < 17 and NoLowercase == False and NoUppercase == False and NoNumber == False and NoSymbol == False:
 RegisterPasswordValidation = input("\nInput your desired password again:")

 RegisterPasswordValidation = RegisterPasswordValidation.replace(" ","")
 if RegisterPassword != RegisterPasswordValidation:
 print("\nThe password you have inputted is not the same, please try again.")
 elif RegisterPassword == RegisterPasswordValidation:
 print("\nThe password you have inputted match.")
 print("\nYour password is:",RegisterPasswordValidation)

 PasswordModule = True

 RegisteredUsernameAndPassword = RegisterUsername+":"+RegisterPassword
 with open("Usernames.txt", "a") as file:
 file.write("\n")
 file.write(RegisteredUsernameAndPassword)

 print("\nYou have successfully registered!")
 elif len(RegisterPassword) <= 7 or len(RegisterPassword) > 16:
 print("\nYour password needs a total of 8 to 16 characters.")
 if NoLowercase == True:
 print("\nYour password does not have lowercase letters.")
 if NoUppercase == True:
 print("\nYour password does not have uppercase letters.")
 if NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoUppercase == True:
 print("\nYour password does not have uppercase letters.")
 if NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoLowercase == True:
 print("\nYour password does not have lowercase letters.")
 if NoUppercase == True:
 print("\nYour password does not have uppercase letters.")
 if NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoUppercase == True:
 print("\nYour password does not have uppercase letters.")
 if NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1

 elif player != "y" or player != "n" or player != "Y" or player != "N":
 print("\nTry again.\n")
 return()
###### DEFINING ROLL ######
### Makes the dice roll for the player and works out the total for that roll ###
def roll():
 points = 0
 die1 = random.randint(1,6)
 die2 = random.randint(1,6)
 dietotal = die1 + die2
 points = points + dietotal
 if dietotal % 2 == 0:
 points = points + 10
 else:
 points = points - 5
 if die1 == die2:
 die3 = random.randint(1,6)
 points = points +die3
 return(points)
###### DICE ROLL ######
### This rolls the dice 5 times for the players, and then adds up the total. If the scores are equal, it starts a tie breaker and determines the winner off that ###
login()
for i in range(1,5):
 Player1Points += roll()
 print('After this round ',user1, 'you now have: ',Player1Points,' Points')
 time.sleep(1)
 Player2Points += roll()
 print('After this round ',user2, 'you now have: ',Player2Points,' Points')
 time.sleep(1)
if Player1Points == Player2Points:
 while Player1Tiebreaker == Player2Tiebreaker:
 Player1Tiebreaker = random.randint(1,6)
 Player2Tiebreaker = random.randint(1,6)
 if Player1Tiebreaker > Player2Tiebreaker:
 Player2Points = 0
 elif Player2Tiebreaker > Player1Tiebreaker:
 Player1Points = 0
###### WORKING OUT THE WINNER ######
### This checks which score is bigger, then creates a tuple for my leaderboard code ###
if Player1Points>Player2Points:
 Winner_Points = Player1Points
 winner_User = user1
 winner = (Winner_Points, user1)
elif Player2Points>Player1Points:
 Winner_Points = Player2Points
 winner = (Winner_Points, user2)
 winner_User = user2
print('\nWell done, ', winner_User,' you won with ',Winner_Points,' Point\n\n')
###### CODE TO UPLOAD ALL SCORES TO A FILE ######
### This will store the winners username and score in a text file ###
leaderboard1 = "{}:{}".format(winner_User,Winner_Points)
with open ("Leaderboard.txt", "a") as file:
 file.write("\n")
 file.write(leaderboard1)
###### CODE TO LOAD, UPDATE AND SORT LEADERBOARD ######
### This loads the leaderboard into an array, then compares the scores just gotton and replaces it ###
f = open('Leaderboard.txt', 'r')
leaderboard = [line.replace('\n','') for line in f.readlines()]
f.close()
### This sorts the leaderboard in reverse, and then rewrites it ###
leaderboard.sort(reverse=True)
with open('Leaderboard.txt', 'w') as f:
 for item in leaderboard:
 f.write("%s\n" % item)
print("TOP 5 SCORES:")
with open("Leaderboard.txt", "r") as f:
 counter = 0
 N = 1
 for line in f:
 head,sep,tail = line.partition(":")
 print("Place No.{}. Username: {}. Score: {}".format(N,head,tail))
 N = N + 1
 counter += 1
 if counter == 5: break

#Importing modules
import random
import time
import re
##################################################################################################################################
#Defining global variables
i = 0
Player1Points = 0
Player2Points = 0
Player1Tiebreaker = 0
Player2Tiebreaker = 0
Winner_Points = 0
##################################################################################################################################
#Authorisation/Registration
#Login
def login():
 
 #Defining function variables
 
 x = 0
 UserNumber = 1
 login = False
 found = False
 placeholder = True
 NoLowercase = True
 NoUppercase = True
 NoNumber = True
 NoSymbol = True
 NoSymbolPlaceHolder = False
 
 #Function starts
 
 while login == False:
 while found != True:
 player = input("Has User{} got an account? Y/N: ".format(UserNumber))
 if player == "Y" or player == "y":
 user = input("Input User{}'s username: ".format(UserNumber))
 password = input("\nInput your password: ")
 user = user.lower()
 user = user.replace(" ","")
 password = password.replace(" ","")
 with open('Usernames.TXT') as file:
 for line in file:
 uu, pp = line.strip().split(':')
 if user == uu and password == pp:
 print("\nUser found\n")
 if x == 0:
 global user1
 user1 = user
 found = True
 x = 1
 UserNumber = 2
 
 elif x == 1:
 global user2
 user2 = user
 found = True
 login = True
  x = 2
 break
 if not found:
 print("\nUser{} not found\n".format(UserNumber))
 if x == 1:
 found = False
#Register username 
 elif player == "N" or player == "n":
 UsernameModule = False
 while UsernameModule != True:
 RegisterUsername = input("\nInput your desired username: ")
 RegisterUsername = RegisterUsername.lower()
 RegisterUsername = RegisterUsername.replace(" ","")
 if len(RegisterUsername) <= 16 and len(RegisterUsername) >= 4:
 RegisterUsernameValidation = input("\nInput your desired username again: ")
 RegisterUsernameValidation = RegisterUsernameValidation.lower()
 RegisterUsernameValidation = RegisterUsernameValidation.replace(" ","")
 if RegisterUsername != RegisterUsernameValidation:
 print("\nThe username you have inputted is not the same, please try again.")
 elif RegisterUsername == RegisterUsernameValidation:
 print("\nThe username you have inputted match.")
 print("\nYour username is:",RegisterUsernameValidation)
 UsernameModule = True
 elif len(RegisterUsername) > 16 or len(RegisterUsername) < 4:
 print("\nSorry, your username is either shorter than 4 characters or longer than 16 characters.")
#Register password
 PasswordModule = False
 while PasswordModule != True:
 RegisterPassword = input("\nInput your desired password: ")
#Checking if password has symbols, numbers, upper and lower case
 N = 0
 N2 = 1
 while N2 < 17:
 if N == 0:
 RegisterPassword = RegisterPassword.replace(" ","")
 else:
 placeholder1 = True
 RegisterPassword1 = RegisterPassword[N:N2]
 if RegisterPassword1.islower() == True: # there is lowercase
 NoLowercase = False
 else:
 placeholder1 = True
 if RegisterPassword1.isupper() == True:
 NoUppercase = False
 else:
 placeholder1 = True
 if RegisterPassword1.isdigit() == True:
 NoNumber = False
 else:
 placeholder1 = True
 if RegisterPassword1 == "[" or RegisterPassword1 == "@" or RegisterPassword1 == "_" or RegisterPassword1 == "!" or RegisterPassword1 == "#" or RegisterPassword1 == "$" or RegisterPassword1 == "%" or RegisterPassword1 == "^" or RegisterPassword1 == "&" or RegisterPassword1 == "*" or RegisterPassword1 == "(" or RegisterPassword1 == ")" or RegisterPassword1 == "<" or RegisterPassword1 == ">" or RegisterPassword1 == "?" or RegisterPassword1 == "/" or RegisterPassword1 == "\\" or RegisterPassword1 == "|" or RegisterPassword1 == "}" or RegisterPassword1 == "{" or RegisterPassword1 == "~" or RegisterPassword1 == ":" or RegisterPassword1 == "]":
 NoSymbolPlaceHolder = True
 else:
 placeholder1 = True
 if NoSymbolPlaceHolder == True:
 NoSymbol = False
 else:
 placeholder1 = True
 N = N + 1
 N2 = N2 + 1
 if len(RegisterPassword) > 7 and len(RegisterPassword) < 17 and NoLowercase == False and NoUppercase == False and NoNumber == False and NoSymbol == False:
 RegisterPasswordValidation = input("\nInput your desired password again:")
 RegisterPasswordValidation = RegisterPasswordValidation.replace(" ","")
 if RegisterPassword != RegisterPasswordValidation:
 print("\nThe password you have inputted is not the same, please try again.")
 elif RegisterPassword == RegisterPasswordValidation:
 print("\nThe password you have inputted match.")
 print("\nYour password is:",RegisterPasswordValidation)
 PasswordModule = True
 RegisteredUsernameAndPassword = RegisterUsername+":"+RegisterPassword
 with open("Usernames.txt", "a") as file:
 file.write("\n")
 file.write(RegisteredUsernameAndPassword)
 print("\nYou have successfully registered!")
 elif len(RegisterPassword) <= 7 or len(RegisterPassword) > 16:
 print("\nYour password needs a total of 8 to 16 characters.")
 if NoLowercase == True:
 print("\nYour password does not have lowercase letters.")
 if NoUppercase == True:
 print("\nYour password does not have uppercase letters.")
 if NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoUppercase == True:
 print("\nYour password does not have uppercase letters.")
 if NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoLowercase == True:
 print("\nYour password does not have lowercase letters.")
 if NoUppercase == True:
 print("\nYour password does not have uppercase letters.")
 if NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoUppercase == True:
 print("\nYour password does not have uppercase letters.")
 if NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif NoNumber == True:
 print("\nYour password does not have numbers.")
 if NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif placeholder == True:
 placeholder1 = True
 N = 0
 N2 = 1
 elif NoSymbol == True:
 print("\nYour password does not have symbols, please try again.")
 N = 0
 N2 = 1
 elif player != "y" or player != "n" or player != "Y" or player != "N":
 print("\nTry again.\n")
 return()

login()

###### DEFINING ROLL ######
### Makes the dice roll for the player and works out the total for that roll ###
def roll():
 points = 0
 die1 = random.randint(1,6)
 die2 = random.randint(1,6)
 dietotal = die1 + die2
 points = points + dietotal
 if dietotal % 2 == 0:
 points = points + 10
 else:
 points = points - 5
 if die1 == die2:
 die3 = random.randint(1,6)
 points = points +die3
 return(points)
###### DICE ROLL ######
### This rolls the dice 5 times for the players, and then adds up the total. If the scores are equal, it starts a tie breaker and determines the winner off that ###
for i in range(1,5):
 Player1Points += roll()
 print('After this round ',user1, 'you now have: ',Player1Points,' Points')
 time.sleep(1)
 Player2Points += roll()
 print('After this round ',user2, 'you now have: ',Player2Points,' Points')
 time.sleep(1)
if Player1Points == Player2Points:
 while Player1Tiebreaker == Player2Tiebreaker:
 Player1Tiebreaker = random.randint(1,6)
 Player2Tiebreaker = random.randint(1,6)
 if Player1Tiebreaker > Player2Tiebreaker:
 Player2Points = 0
 elif Player2Tiebreaker > Player1Tiebreaker:
 Player1Points = 0
###### WORKING OUT THE WINNER ######
### This checks which score is bigger, then creates a tuple for my leaderboard code ###
if Player1Points>Player2Points:
 Winner_Points = Player1Points
 winner_User = user1
 winner = (Winner_Points, user1)
elif Player2Points>Player1Points:
 Winner_Points = Player2Points
 winner = (Winner_Points, user2)
 winner_User = user2
print('\nWell done, ', winner_User,' you won with ',Winner_Points,' Point\n\n')
###### CODE TO UPLOAD ALL SCORES TO A FILE ######
### This will store the winners username and score in a text file ###
leaderboard1 = "{}:{}".format(Winner_Points,winner_User)
with open ("Leaderboard.txt", "a") as file:
 file.write("\n")
 file.write(leaderboard1)
###### CODE TO LOAD, UPDATE AND SORT LEADERBOARD ######
### This loads the leaderboard into an array, then compares the scores just gotton and replaces it ###
f = open('Leaderboard.txt', 'r')
leaderboard = [line.replace('\n','') for line in f.readlines()]
f.close()
### This sorts the leaderboard in reverse, and then rewrites it ###
leaderboard.sort(reverse=True)
with open('Leaderboard.txt', 'w') as f:
 for item in leaderboard:
 f.write("%s\n" % item)
print("TOP 5 SCORES:")
with open("Leaderboard.txt", "r") as f:
 counter = 0
 N = 1
 for line in f:
 head,sep,tail = line.partition(":")
 print("Place No.{}\nUsername: {}Score: {}\n".format(N,tail,head))
 N = N + 1
 counter += 1
 if counter == 5: break