Passing variables, creating instances, self, The mechanics and usage of classes: need explenation
- by Baf
I've been sitting over this the whole day and Im a little tired already so please excuse me being brief.
Im new to python.
I just rewrrote a working program, into a bunch of functions in a class and everzthings messed up.
I dont know if its me but Im very surprised i couldn t find a beginners tutorial on how to handle classes on the web so I have a few questions.
First of all, in the init section of the class i have declared a bunch of variables with self.variable=something.
Is it correct that i should be able to access/modify these variables in every function of the class by using self.variable in that function? In other words by declaring self.variable i have made these variables, global variables in the scope of the class right?
If not how do i handle self. ?
Secondly how do i correctly pass arguments to the class? some example code would be cool.
thirdly how do i call a function of the class outside of the class scope? some example code would be cool.
fouthly how do I create an Instance of the class INITIALCLASS in another class OTHERCLASS, passing variables from OTHERCLASS to INITIALCLASS? some example code would be cool.
I Want to call a function from OTHERCLASS with arguments from INITIALCLASS. What Ive done so far is.
class OTHERCLASS():
def __init__(self,variable1,variable2,variable3):
self.variable1=variable1
self.variable2=variable2
self.variable3=variable3
def someotherfunction(self):
something=somecode(using self.variable3)
self.variable2.append(something)
print self.variable2
def somemorefunctions(self):
self.variable2.append(variable1)
class INITIALCLASS():
def __init__(self):
self.variable1=value1
self.variable2=[]
self.variable3=''
self.DoIt=OTHERCLASS(variable1,variable2,variable3)
def somefunction(self):
variable3=Somecode
#tried this
self.DoIt.someotherfunctions()
#and this
DoIt.someotherfunctions()
I clearly havent understood how to pass variables to classes or how to handle self, when to use it and when not, I probably also havent understood how to properly create an isntance of a class. In general i havent udnerstood the mechanics of classes So please help me and explain it to me like i have no Idea( which i dont it seems). Or point me to a thorough video, or readable tutorial.
All i find on the web is super simple examples, that didnt help me much. Or just very short definitions of classes and class methods instances etc.
I can send you my original code if you guys want, but its quite long.
Thanks for the Help Much appreciated!
