python - Having trouble with the self parameter -


I am working on a small project and I am not sure if I am getting an error or whatever I am doing wrong.

I am using OOP in the Python running on Wing IDLE. I have the latest version of Python Shell running on Windows 8 PC

In my program, I have a method that takes the user input and uses that input, so that it is necessary to create the shelf The subject_name = input ("Enter the name of the subject:") subject_file = topic_name + "file" name = topic_name return subject_name, subject_file, name ' 

   < P> Ideally this program then made three returning statements Abuse will, namely Visy_nam, Visy_fail, and name to open a new shelf.  
  'def __init __ (self, subject_name, subject_file, name): subject_name = shelve.open ("subject_file", "c") self.name = name print ("the", self Name, "note is created") 'is correct, while: print ("" "1. Create a new note. Add new word 3. View word 4.Exit / Quit" "") ans = input ("What will you do If this happens: ") if ans ==" 1 ": subject_creator () note = notebook (subject_name, subject_file, name) subject_name.sync ()   
 However when I run the program And in my main menu I select the choice 1, which will run the code above So I have, I get calls error.    & lt; Module & gt; Buildins.TypeError: subject_creator () 1 Required Positional Logic Disappeared: 'Self'   
 This is somewhat surprised because I include the self parameter when I have mentioned the above for the producer Besides the code I wrote, I have no other errors.  
 Any feedback will be highly appreciated.   
 
 
 You are confused with "function" and "method"  
 In Python, a method is defined in a  class  field, and this object will be received as its first argument:  
  Class examples: def try_me (self): print "hello."   
 You will use it like this:  
  x = example (x.try_me ()   
 and Its first (here, neglected) logic as  try_me ()  will receive  x . This is useful so that the method can be used to use properties of the object instance etc.  
 Contrast this with regular functions, i.e. out of  class :  defined:  
  def try_me_too (): print " Hello. "   
 Which is implemented just like  
  try_me_too ()   
 Tanz, your example code does not raise The value returned by your  subject_creator  function:  
  & gt; If ans == "1": & gt; Subject only () & gt; Note = Notebook (subject_name, subject_file, name)   
 An area where  is not named variable named  etc. You need to create it in some way. If ans == "1": ick, bar, poo = topic_creator () note = notebook (ick, bar, poo)   
 (I The chosen nonsense variable names mainly emphasize that they are different from the defined variables, and are only available inside  subject matter.  
 
 Simply complete it For, here is an exhibit how  self  is useful.  
  class oteraxapple: def __init __ (self, greeting): self.greeting = greeting def try_me_also (self): print self.greeting   
 Use from:  
  y = Otherexample ("hello.") Y.try_me_also ()   
 Here, greeting is the property of an object created by us ; The  __init __  method gets it as its argument, and stores it as an example of an example. Uses  try_me_also  method  self  to fetch this feature, and prints it.

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