Local variables are being used before assignment, but are assigned before used
Question:
I am getting this error message:
Traceback (most recent call last):
File "python", line 256, in <module>
File "python", line 11, in questions
File "python", line 190, in instructions
File "python", line 27, in names
File "python", line 45, in p1turn_part_1
File "python", line 137, in p2turn
File "python", line 86, in p1turn_part_2
UnboundLocalError: local variable 'p1point' referenced before assignment
from This Website.
The code is:
import time
import random
###########
#Functions#
###########
def questions():
instruction_or_skip = input('Type 'instructions' to learn how to play. If you don' want to learn, type 'skip'')
if instruction_or_skip == 'instructions':
instructions()
elif instruction_or_skip == 'skip':
names()
else:
print('nSorry, I didn't get that.n')
questions()
#--starting screen--#
def startScreen():
loadingScreen()
def names():
global p1name
p1name = input('What is the first player's name?')
global p2name
p2name = input('What is the second player's name?')
p1turn_part_1()
def p1turn_part_1():
global rounds
print('nHow many rounds?')
rounds = input(':>')
rounds = int(rounds)
global p1point
p1point = 0
p1 = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36']
p1 = (random.choice(p1))
print p1
if p1 == '1' or '2' or '3' or '4' or '5' or '6' or '7' or '8' or '9':
p1point = p1point + 1
time.sleep(1)
global rounds
rounds = rounds - 1
print(p1name + ' gets a point!')
p2turn()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
time.sleep(1)
print(p1name + ' gets no points...')
p2turn()
global rounds
rounds = rounds - 1
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
p2turn()
def p1turn_part_2():
#1-9 are divisble by 4
#10-27 are divisble by 2
p1 = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36']
p1 = (random.choice(p1))
print p1
if p1 == '1' or '2' or '3' or '4' or '5' or '6' or '7' or '8' or '9':
p1point = p1point + 1
time.sleep(1)
global rounds
rounds = rounds - 1
print(p1name + ' gets a point!')
p2turn()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
time.sleep(1)
print(p1name + ' gets no points...')
global rounds
rounds = rounds - 1
p2turn()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
p2turn()
def p2turn():
global p2point
p2point = 0
p2 = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36']
p2 = (random.choice(p2))
print p2
if p2 == '10' or '11' or '12' or '13' or '14' or '15' or '16' or '17' or '18' or '19' or '20' or '21' or '22' or '23' or '24' or '25' or '26' or '27':
global p2point
p2point = p2point + 1
time.sleep(1)
global rounds
rounds = rounds - 1
print(p2name + ' gets a point!')
p1turn_part_2()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
time.sleep(1)
global rounds
rounds = rounds - 1
print(p2name + ' gets no points...')
p1turn_part_2()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
p1turn_part_2()
#--the instructions--#
def instructions():
print(''' ##########################
#########DIE ROLL#########
##########################''')
print('nRules:')
print('n1.)Follow all prompts on screen')
print('2.)Do not modify the script under ANY curcumstances')
print('3.)You do not need to write down any scores or round numbers,')
print(' They will be recorded for you.')
print('4.)P1 needs to get any number divisable by 4')
print('5.)P2 needs to get any number divisable by 2')
print('6.)P3 needs to get any number divisable by 3')
print('7.)P4 needs to get any number divisable by 5')
names()
#--for looks only--#
def loadingScreen():
print('n' * 100)
print('nLoading...')
print('n')
time.sleep(0.5)
print('n' * 100)
print('nLoading.')
print('n-')
time.sleep(0.5)
print('n' * 100)
print('nLoading..')
print('n-')
time.sleep(0.5)
print('n' * 100)
print('nLoading...')
print('n--')
time.sleep(0.5)
print('n' * 100)
print('nLoading.')
print('n--')
time.sleep(0.5)
print('n' * 100)
print('nLoading..')
print('n---')
time.sleep(0.5)
print('n' * 100)
print('nLoading...')
print('n---')
time.sleep(0.5)
print('n' * 100)
print('nLoading.')
print('n----')
time.sleep(0.5)
print('n' * 100)
print('nLoading..')
print('n----')
time.sleep(0.5)
print('n' * 100)
print('nLoading...')
print('n-----')
time.sleep(0.5)
print('n' * 100)
print('nLoading.')
print('n-----')
time.sleep(0.5)
print('n' * 100)
print('nLoading..')
print('n------')
time.sleep(0.5)
print('n' * 100)
print('nLoading...')
print('n------')
time.sleep(0.5)
############
####GAME####
############
print('test complete')
startScreen()
questions()
global rounds
print('nHow many rounds?')
rounds = input(':>')
rounds = int(rounds)
Does anyone know what the problem is? (this also applies to the p2point and rounds variables.)(test on previous site.)
Side questions:
- Why does player 1 get a point no matter what number is taken?
- Will an infinite loop be created by this program?
Answers:
p1turn_part_2 contains the following statement:
p1point = p1point + 1
In order to set the new value of p1point, it needs to use the old value. But the variable has never been set before, so it gets an error when trying to add 1 to the old value.
I assume this is supposed to be using the value that was set in p1turn_part_1. That function has:
global p1point
so it’s setting the global variable. But since p1turn_part_2 has no such statement, it tries to use a local variable, not the global variable. Add the same global statement to p1turn_part_2.
I am getting this error message:
Traceback (most recent call last): File "python", line 256, in <module> File "python", line 11, in questions File "python", line 190, in instructions File "python", line 27, in names File "python", line 45, in p1turn_part_1 File "python", line 137, in p2turn File "python", line 86, in p1turn_part_2 UnboundLocalError: local variable 'p1point' referenced before assignment
from This Website.
The code is:
import time
import random
###########
#Functions#
###########
def questions():
instruction_or_skip = input('Type 'instructions' to learn how to play. If you don' want to learn, type 'skip'')
if instruction_or_skip == 'instructions':
instructions()
elif instruction_or_skip == 'skip':
names()
else:
print('nSorry, I didn't get that.n')
questions()
#--starting screen--#
def startScreen():
loadingScreen()
def names():
global p1name
p1name = input('What is the first player's name?')
global p2name
p2name = input('What is the second player's name?')
p1turn_part_1()
def p1turn_part_1():
global rounds
print('nHow many rounds?')
rounds = input(':>')
rounds = int(rounds)
global p1point
p1point = 0
p1 = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36']
p1 = (random.choice(p1))
print p1
if p1 == '1' or '2' or '3' or '4' or '5' or '6' or '7' or '8' or '9':
p1point = p1point + 1
time.sleep(1)
global rounds
rounds = rounds - 1
print(p1name + ' gets a point!')
p2turn()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
time.sleep(1)
print(p1name + ' gets no points...')
p2turn()
global rounds
rounds = rounds - 1
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
p2turn()
def p1turn_part_2():
#1-9 are divisble by 4
#10-27 are divisble by 2
p1 = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36']
p1 = (random.choice(p1))
print p1
if p1 == '1' or '2' or '3' or '4' or '5' or '6' or '7' or '8' or '9':
p1point = p1point + 1
time.sleep(1)
global rounds
rounds = rounds - 1
print(p1name + ' gets a point!')
p2turn()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
time.sleep(1)
print(p1name + ' gets no points...')
global rounds
rounds = rounds - 1
p2turn()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
p2turn()
def p2turn():
global p2point
p2point = 0
p2 = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36']
p2 = (random.choice(p2))
print p2
if p2 == '10' or '11' or '12' or '13' or '14' or '15' or '16' or '17' or '18' or '19' or '20' or '21' or '22' or '23' or '24' or '25' or '26' or '27':
global p2point
p2point = p2point + 1
time.sleep(1)
global rounds
rounds = rounds - 1
print(p2name + ' gets a point!')
p1turn_part_2()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
time.sleep(1)
global rounds
rounds = rounds - 1
print(p2name + ' gets no points...')
p1turn_part_2()
if rounds < 0:
print p1point
print p2point
if p1point < p2point:
print('nPlayer 2 wins!')
exit(0)
elif p2point < p1point:
print('nPlayer 1 wins')
exit(0)
else:
print('It's a tie!')
exit(0)
else:
p1turn_part_2()
#--the instructions--#
def instructions():
print(''' ##########################
#########DIE ROLL#########
##########################''')
print('nRules:')
print('n1.)Follow all prompts on screen')
print('2.)Do not modify the script under ANY curcumstances')
print('3.)You do not need to write down any scores or round numbers,')
print(' They will be recorded for you.')
print('4.)P1 needs to get any number divisable by 4')
print('5.)P2 needs to get any number divisable by 2')
print('6.)P3 needs to get any number divisable by 3')
print('7.)P4 needs to get any number divisable by 5')
names()
#--for looks only--#
def loadingScreen():
print('n' * 100)
print('nLoading...')
print('n')
time.sleep(0.5)
print('n' * 100)
print('nLoading.')
print('n-')
time.sleep(0.5)
print('n' * 100)
print('nLoading..')
print('n-')
time.sleep(0.5)
print('n' * 100)
print('nLoading...')
print('n--')
time.sleep(0.5)
print('n' * 100)
print('nLoading.')
print('n--')
time.sleep(0.5)
print('n' * 100)
print('nLoading..')
print('n---')
time.sleep(0.5)
print('n' * 100)
print('nLoading...')
print('n---')
time.sleep(0.5)
print('n' * 100)
print('nLoading.')
print('n----')
time.sleep(0.5)
print('n' * 100)
print('nLoading..')
print('n----')
time.sleep(0.5)
print('n' * 100)
print('nLoading...')
print('n-----')
time.sleep(0.5)
print('n' * 100)
print('nLoading.')
print('n-----')
time.sleep(0.5)
print('n' * 100)
print('nLoading..')
print('n------')
time.sleep(0.5)
print('n' * 100)
print('nLoading...')
print('n------')
time.sleep(0.5)
############
####GAME####
############
print('test complete')
startScreen()
questions()
global rounds
print('nHow many rounds?')
rounds = input(':>')
rounds = int(rounds)
Does anyone know what the problem is? (this also applies to the p2point and rounds variables.)(test on previous site.)
Side questions:
- Why does player 1 get a point no matter what number is taken?
- Will an infinite loop be created by this program?
p1turn_part_2 contains the following statement:
p1point = p1point + 1
In order to set the new value of p1point, it needs to use the old value. But the variable has never been set before, so it gets an error when trying to add 1 to the old value.
I assume this is supposed to be using the value that was set in p1turn_part_1. That function has:
global p1point
so it’s setting the global variable. But since p1turn_part_2 has no such statement, it tries to use a local variable, not the global variable. Add the same global statement to p1turn_part_2.