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TypeError: 'int' object is not callable - Python beginner [closed]

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I'm a fairly new programmer and I started learning Python. I've given myself the task of programming a text-based RPG with a kind of round-based fighting like Pokémon or the older Final Fantasy games. Right now I'm working on the battle mechanics, but I ran into an error which I couldn't fix. When I call the 'battle' function in my main I always get the error: 'TypeError: 'int' object is not callable'. I'd be happy if you could help me with this one, like I said, I'm still very new to programming.
My error-Message:
Traceback (most recent call last): File "C:\Doku\Python310\Scripts\text_adventure.py", line 169, in <module>
battle(main.health, main.attack, main.defence, enemy.health, enemy.attack, enemy.defence, main, enemy) File "C:\Doku\Python310\Scripts\text_adventure.py", line 106, in battle
x = player.attack(enemy.health) TypeError: 'int' object is not callable
line 169
#call battle function with the stats of my main character and an enemy
battle(main.health, main.attack, main.defence, enemy.health, enemy.attack, enemy.defence, main, enemy)
line 103-112
#choose between attack and special attack - error occurs with both descisions the same way
while True:
desc = choose()
if desc == 'A' or desc == 'a':
x = player.attack(enemy)
y = player.check_battle()
break
elif desc == 'B' or desc == 'b':
player.specialmove(enemy)
player.check_battle()
break
my choose function:
#couldn't run it without it, don't know why
def choose():
desc = input()
return desc
my main (shortened)character class:
class Main:
#init
def __init__(self, Mhealth, Mattack, Mdefence):
self.health = Mhealth
self.attack = Mattack
self.defence = Mdefence
self.multiplier = 1.00
#attacks
def attack(self, enemy):
x = enemy.health - (self.attack-enemy.defence)
enemy.setHealth(x)
def specialmove(self, enemy):
enemy.health -= round((self.attack*1.5)-enemy.defence)
def movelist(self):
moves = ['A - Attack', 'B - Special']
return moves
my enemy class is built the same way

self.attack is an integer. You set it in __init__ part of the class. Rename either the attack function or this number.

I keep getting error that says main is not defined. I just want it to run. It's supposed to let me enter the description, price, and unit [closed]

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class RetailItem:
# The _init_ method initalizes the attributes.
def __init__(self, description, units, price):
self.__description = description
self.__units = units
self.__price = price
# The set_description method acccetps an argument for the retailitem's description.
def set_description(self, description):
self.__description = description
# The set_units method accepts an argument for the retailitem's units.
def set_units(self, units):
self.__units = units
# the set_price method accepts an argument for the retailitem's price.
def set_price(self, price):
self.__price = price
# The set_description methods returns the retailitem's description.
def get_description(self):
return self.__description
# The get_units method returns the retailitem's units.
def get_units(self):
return self.__units
# The get_price method returns the retailitem's price.
def get_price(self):
return self.__price
def make_list ():
#Create an empty list
item_list = []
# Add Item Object to the list
print ('Enter date for the items')
keep_going = 'Y'
i = 1
while keep_going.upper() == 'Y':
print('Item n*',i)
#Get the Item data
descript = input('Enter the description: ')
units_Inv = input('Enter the units: ')
prix = float(input('Enter the price:$'))
print()
# Create an instance of the retailitem class
item = retailitem.RetailItem(descript, units_Inv, prix)
i += 1
#Add the Object to the list
item_list.append(item)
keep_going = input('Press Y to continue to add Data for item or N to stop: ')
# return the list
return item_list
def display_list(item_list):
for var in item_list:
print(var.get_description())
print(var.get_units())
print(var.get_price())
print()
#call the main function.
main ()

main needs to be defined (def main doesn't appear in your example, at least). My guess is that you are expecting the following:
def main():
lst = make_list()
display_list(lst)

The problem is exactly what the error message is telling you:
#call the main function.
main ()
Where is main() defined?
This may be caused by confusion about how Python works vs. other languages. In Python, anything at the global level is executed automatically -- it doesn't need to go in a main function.
So, if you want to run some code, just do it:
class RetailItem:
def __init__(self, description, units, price):
self.__description = description
self.__units = units
self.__price = price
# etc.
l = make_list()
display_list(l)
Typically you would wrap that code at the end in a if __name__ == "__main__" block, but it's not required.

you need somewhere
def main():
#function body - whatever you want it to do
in this case, what it looks like you want to do is to create an instance of the RetailItem class and then call its methods.

The error says the issue. "main is not defined".
You are calling the main() function at the end but didn't define it anywhere in the code.
def main():
# this is your main function
list = make_list()
display_list(list)

w.r.t. "I just want it to run": add the following to the top of your code:
def main():
pass
Your code will now run. Technically.

If you want to reference putting all of the functions together you actually need to declare a function called main() EX:
def main():
makelist()
displaylist(item_list)
####################################
main()

Python 3.3 Class method not working, why? [closed]

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Hi below is the relevant code for my problem:
class Player:
def __init__(self, name, x, y, isEvil):
self.health = 50
self.attack = randint(1, 5)
self.name = name
self.x = x
self.y = y
self.isEvil = isEvil
def checkIsAlive(self):
if self.health <= 0:
return False
else:
return True
# implicit in heritance. if the child doesn't have a function that the parent has
# the functions of the parent can be called as if it were being called on the
# parent itself
class Enemy(Player):
#def __init__(self, name, x, y, isEvil):
# self.health = 50
# self.name = name
# self.x = x
# self.y = y
pass
and a little more code:
e = Enemy('Goblin', 10, 11, True)
p = Player('Timmeh', 0, 1, False)
isLight()
while True:
if p.checkIsAlive() == True and e.checkIsALive() == True:
fight()
else:
if p.checkIsAlive() == True:
print('%s is victorious!!! %s survived with %s health points.' % (p.name, p.name, p.health))
else:
print('%s shrieks in its bloodlust!!! %s has %s health points' % (e.name, e.name, e.health))
however when i try and run this I get the following error:
Traceback (most recent call last):
File "<string>", line 420, in run_nodebug
File "C:\Python33\practice programs\textstrat\classees.py", line 94, in <module>
if p.checkIsAlive() == True and e.checkIsALive() == True:
AttributeError: 'Player' object has no attribute 'checkIsAlive'
However when using the interactive console I can do this:
if p.checkIsAlive() == True and e.checkIsAlive() == True:
... print('they are')
...
they are
all I want to do is call the boolean values for checkIsAlive to determine whether the two objects fight. It works in every other respect and I could just use:
if p.health <= 0 or e.health <= 0:
however that would make my checkIsAlive() method pretty useless when i would also want to be able to recycle as much code ass possible.
I really can't figure out why it is behaving this way and would sure love to understand it. Thanks in advance for your input.

As was pointed out swiftly in the comments above. I had missed a typo in the attribute name checkIsAlive.

Class variable can't be defined by function [closed]

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For some reason, the class variable self cannot be defined in a function.
Function:
def pickapoo_specialattack(opponent):
print("PICKAPOO's FLATULENCE BOLTS WAS EFFECTIVE")
self.damage -= float(self.damage / 20)
damage_dealt = random.randrange(200, 250)
defender.health -= damage_dealt
print("\nPICKAPOO's DAMAGE RATING WAS DECREASED BY 20%")
print("PICKAPOO's DAMAGE RATING IS NOW {}".format(str(self.damage)))
return self.damage
Class:
class Deskemon(object):
def __init__(self, name, health, damage, defense):
self.base_name = name
self.base_health = health
self.base_damage = damage
self.base_defense = defense
self.name = self.base_name
self.health = self.base_health
self.damage = self.base_damage
self.defense = self.base_defense
Traceback:
Traceback (most recent call last):
File "DESKEMON PRE ALPHA.py", line 378, in <module>
Battle(deskemon, Jack)
File "DESKEMON PRE ALPHA.py", line 168, in Battle
Deskemon_Attack(D1, D2, special=(random.randrange(1, 100) <= 45))
File "DESKEMON PRE ALPHA.py", line 216, in Deskemon_Attack
pickapoo_specialattack(defender)
File "DESKEMON PRE ALPHA.py", line 115, in pickapoo_specialattack
self.damage -= float(self.damage / 20)
NameError: name 'self' is not defined
Here is my full code: http://pastebin.com/8Xn6UCKS

that's because the self variable has to be explicitely given to methods in python. As you write it, are you expecting python to read your mind so it guesses that self shall be something from a class your function is not related at all with?
So to have it bound you need:
add self to argument list of def pickapoo_specialattack(self, opponent)
to move pickapoo_specialattack(opponent) in your Deskemon class
looking further in your code, what you're doing is definitely wrong, as you're defeating the whole purpose of OOP! Use classes and subclasses to do what you're aiming.
Let me give you an incomplete example of what I mean:
class Deskemon(object):
def specialattack(self, opponent):
raise NotImplementedError
…
class Pickapoo(Deskemon):
def specialattack(self, opponent):
… # content of the pickapoo_specialattak() function
class Tamosha(Deskemon):
def specialattack(opponent):
… # content of the tamosha_specialattak() function
and then:
def main():
pickapoo = Pickapoo(…)
tamosha = Tamosha(…)
instead of monkey patching Deskemon instances, use proper OOP conception and make Deskemon the base class of all your instances. Then you create a specialized instance for each Deskemon object, and that's the thing you initialize.
N.B.1: you should init all your objects in a main function:
N.B.2: you should place all your code at the end in a main function:
def main():
# init
pickapoo = Pickapoo(…)
tamosha = Tamosha(…)
lilwilly = Lilwilly(…)
bigbboy = Biggboy(…)
# start up
print("Welcome to Deskemon Pre-Alpha V1.2".upper())
…
# play loop
while True:
deskemon_selection_menu()
deskemon_selection_input = input("> ")
if deskemon_selection_input == "1":
deskemon = tamosha
elif deskemon_selection_input == "2":
deskemon = pickapoo
elif deskemon_selection_input == "3":
deskemon = lilwilly
elif deskemon_selection_input == "4":
deskemon = biggboi
else:
continue
print("You have selected {} as your Deskemon".upper().format(deskemon))
break
# shut down
print("Professor Andrew: Alright Jack, it's time to pick your Deskemon.")
…
print("Jack: OI! " + name + "!")
time.sleep(1)
Battle(deskemon, Jack)
if __name__ == "__main__":
main()

very new to python would appreciate [closed]

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Closed 9 years ago.
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I'm in a python class with a dumb teacher and I havent been able to get anything to work right. Here's a simple program i'm just trying to get to work once i know it doesn't really gget the average.
>>> class two:
def average(a,b):
return int((a+b)/2)
def main():
num = input("Number? ")
x= int(num)
y= average(x+1,x)
print(y)
main()
Number? 5
Traceback (most recent call last):
File "<pyshell#28>", line 1, in <module>
class two:
File "<pyshell#28>", line 9, in two
main()
File "<pyshell#28>", line 7, in main
y= average(x+1,x)
NameError: global name 'average' is not defined

Your error happens because you do not have any global name average in scope when you use it.
You seem to be confused about when and whether to use the class keyword. In your particular example, you don't need it -- both average and main want to be global functions, not class methods.
Try this program instead:
def average(a,b):
return int((a+b)/2)
def main():
num = input("Number? ")
x= int(num)
y= average(x+1,x)
print(y)
main()
Alternatively, if you want to learn about classes:
class two:
def __init__(self, x,y):
self.x = x
self.y = y
def average(self):
return (self.x + self.y)/2
def main():
t = two(7,42)
print(t.average())
main ()
Notice how the declaration of average now includes a self parameter -- this links the call to a particular two object. Notice also how the invocation of average changed: it is now t.average(). In this case, t is the specific object which will be passed as the first parameter of two.average().

def average(a,b):
return int((a+b)/2)
def main():
print 'enter a number'
num = raw_input()
y = average(int(num)+1,int(num))
print y
main()