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I have a class and two methods. One method gets input from the user and stores it in two variables, x and y. I want another method that accepts an input so adds that input to x and y. When I run calculate(z) for some number z, it gives me errors saying the global variables x and y aren't defined. Obviously this means that the calculate method isn't getting access to x and y from getinput(). What am I doing wrong?

class simpleclass (object):
 def getinput (self):
 x = input("input value for x: ")
 y = input("input value for y: ")
 def calculate (self, z):
 print x+y+z

These need to be instance variables:

class simpleclass(object):
 def __init__(self):
 self.x = None
 self.y = None

 def getinput (self):
 self.x = input("input value for x: ")
 self.y = input("input value for y: ")

 def calculate (self, z):
 print self.x+self.y+z

You want to use self.x and self.y. Like so:

class simpleclass (object):
 def getinput (self):
 self.x = input("input value for x: ")
 self.y = input("input value for y: ")
 def calculate (self, z):
 print self.x+self.y+z

Inside classes, there's a variable called self you can use:

class Example(object):
 def getinput(self):
 self.x = input("input value for x: ")
 def calculate(self, z):
 print self.x + z

x and y are local variables. they get destroyed when you move out from the scope of that function.

class simpleclass (object):
 def getinput (self):
 self.x = raw_input("input value for x: ")
 self.y = raw_input("input value for y: ")
 def calculate (self, z):
 print int(self.x)+int(self.y)+z

class myClass(object):

 def __init__(self):

 def helper(self, jsonInputFile):
 values = jsonInputFile['values']
 ip = values['ip']
 username = values['user']
 password = values['password']
 return values, ip, username, password

 def checkHostname(self, jsonInputFile):
 values, ip, username, password = self.helper
 print values
 print '---------'
 print ip
 print username
 print password

the init method initializes the class.
the helper function just holds some variables/data/attributes and releases them to other methods when you call it. Here jsonInputFile is some json.
the checkHostname is a method written to log into some device/server and check the hostname but it needs ip, username and password for that and that is provided by calling the helper method.