Weird A-Level Code Stuff

import random
from os.path import exists
from time import sleep

def points(username, points):
    with open(username+"points", 'a') as k:
        k.write(points)

def rgen():
    return random.randrange(3, 10)
def others(area): # function rid
    print("others")
    if random.randrange(0,1):
        print("others 1")
        o= area+random.randrange(1, (area/10)+1)
    else:
        print("others 2")
        o= area-random.randrange(1, (area/10)+1)
    return o


def tra(length, height):
    return (length*height)/2

def rea(length, height):
    return length*height

def game():
    while True:
        uf= input('Enter shape (rectangle/triangle) or menu to return to menu: ').lower()
        if uf == "menu":
            break
        elif uf == 'triangle':
            rh= rgen(); rl= rgen()
            ra= float(tra(rh, rl))

        elif uf == 'rectangle':
            rh= rgen()
            rl= rgen()
            while rl==rh:
                rl= rgen()
            ra= float(rea(rl, rh))
        else:
            print("Enter one of the options")
            continue

        l=[] # working
        #print(l) # working
        l.append(float(ra))
        #print(l) # working
        while len(l) <= 3:
            #sleep(0.9)
            #print("while len l")
            #print(bool(len(l) < 5))

            if random.randrange(0, 2):
                #print("others 1")
                #try:
                v = ra + random.randrange(1, ((ra / 5)//1) + 3)
                #except Exception as e:
                #print(e)
                #print("true", v)
            else:
                #print("others 2")
                #try:
                v = ra - random.randrange(1, ((ra / 5)//1) + 3)
                #except Exception as e:
                #print(e)
                #print(v, "oth2")
            if v not in l:
                #sleep(1)
                #print(l, "tofore")
                l.append(float(v))
                #print(l, "appended v")

        """
        while len(l) < 5:
            print("while len(l) <= 4")
            v= others(ra)
            print(l)
            if v not in l:
                print("if v not in l")
                l.append(v)
        print(v)"""

        random.shuffle(l)
        print("Random shuffled")
        print('''Length: %i
        Height: %i
        Which of the following is the area: %a''' % (rl, rh, l))
        while True:
            try:
                ug= float(input())
                if ug not in l:
                    print('Enter one of the options')
                    continue
                if ug == ra:
                    points(ue, '2\n')
                    break
                else:
                    while True:
                        try:
                            uh = float(input("Try again: "))
                            if uh not in l:
                                print("Enter one of the options")
                                continue
                            if uh == ug:
                                print("Enter a different option")
                                continue
                            if uh == ra:
                                points(ue, '1\n')
                                break
                            else:
                                print("Wrong, Answer was %i" % ra)

                        except ValueError:
                            print("Enter one of the options")
                            continue
                        break
            except ValueError:
                print ("Enter one of the options")
                continue
            break








def wpoints(username):
    k=open(username+"points", "w")
    k.close()

def pwc(password, filename): #password correct
    if open(filename).read() == password:
        return True
    else: return False

def wusername(username):
    # create file with pw+username
    fn= 'pw'+username
    k=open(fn, 'w')
    k.close()
    return fn # return file name of user

def wpassword(password, filename):
    # add in wusername created file username's password
    with open(filename, 'w+') as k:
        k.write(password)
        k.close()
def signin():
    global ue
    while True:
        ue= input('Enter username: ')
        if exists('pw'+ue):
            break
        else:
            print('Enter correct username')
            continue

    while True:
        uf= input("Enter password for user %s" % ue)
        if pwc(uf, 'pw'+ue):
            break
        else:
            print("Incorrect password. Try again.")
            continue

    game()





def cacc():
    uc= input("Enter username: ")
    while True:
        ud= input('Enter password: ')
        if len(ud) < 8 or len(ud) > 18:
            print("Password must be between 8 and 18 characters")
            continue
        if not any(d.isdigit() for d in ud) or not any(d.isalpha() for d in ud):
            print("Must contain letters and numbers")
            continue
        if not any(d.isupper() for d in ud) or not any(d.islower() for d in ud):
            print("Must contain upper and lower case")
            continue
        break
    try:
        fun= wusername(uc)
        wpassword(ud, fun)
        wpoints(uc)
    except IOError:
        print('System cannot write to files; application will now close')
        quit()



def choice():
    while True:
        ub= input("Do you have an account? (yes/no)").lower()
        if ub == 'yes':
            signin()
        elif ub == 'no':
            cacc()
        else:
            print("Enter either yes or no")
            continue
        break


def vscore():
    while True:
        ui= input("View score for which user/return to menu: ")
        if ui.lower() == "menu": break
        if not exists(ui+"points"):
            print("Account does not exist/ points file does not exist for user")
        else:
            k= open(ui+"points").read()
            d=k.split('\n')
            print("Points: %i" % sum(list(map(int, d))))
            break
while True:
    while True:
        try:
            ua= int(input('''Do you wish to:
            1. Sign in
            2. View score
            3. Quit'''))
            if ua == 1:
                choice()
            elif ua == 2:
                vscore()
            elif ua == 3:
                break
            else:
                print("Enter a valid value")
                continue
        except ValueError:
            print("Enter one of the options")
            continue
    break