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I am new to OOP. My idea was to implement the following class:
class name(object, name): def __init__(self, name): print name
Then the idea was to create two instances of that class:
person1 = name("jean") person2 = name("dean")
I know, that is not possible, but how can I pass an input-argument into an instance of a class?
>>> class name(object): ... def __init__(self, name): ... self.name = name ... >>> person1 = name("jean") >>> person2 = name("dean") >>> person1.name 'jean' >>> person2.name 'dean' >>>
9. Classes, The function definitions inside a class normally have a peculiar form of argument list, dictated by the calling conventions for methods — again, The init method is used to pass arguments to a class at creation. class Person(object): def __init__(self, name): self.name = name me = Person("TheLazyScripter") print me.name share | follow |
The problem in your initial definition of the class is that you've written:
class name(object, name):
This means that the class inherits the base class called "object", and the base class called "name". However, there is no base class called "name", so it fails. Instead, all you need to do is have the variable in the special init method, which will mean that the class takes it as a variable.
class name(object): def __init__(self, name): print name
If you wanted to use the variable in other methods that you define within the class, you can assign name to self.name, and use that in any other method in the class without needing to pass it to the method.
class name(object): def __init__(self, name): self.name = name def PrintName(self): print self.name a = name('bob') a.PrintName() bob
Class attributes - Object-Oriented Programming in Python, A function performs an action using some set of input parameters. Not all functions are applicable to all kinds of data. Classes are a way of grouping together Passing function as an argument in Python A function can take multiple arguments, these arguments can be objects, variables (of same or different data types) and functions. Python functions are first class objects. In the example below, a function is assigned to a variable.
You just need to do it in correct syntax. Let me give you a minimal example I just did with Python interactive shell:
>>> class MyNameClass(): ... def __init__(self, myname): ... print myname ... >>> p1 = MyNameClass('John') John
Introduction to classes in Python, A bad solution: global variables. The requirement is thus to define Python implementations of mathematical functions of one variable with one argument, the Python provides a getopt module that helps you parse command-line options and arguments. The Python sys module provides access to any command-line arguments via the sys.argv. This serves two purposes −. sys.argv is the list of command-line arguments. len (sys.argv) is the number of command-line arguments.
name param from the class declaration. The init method is used to pass arguments to a class at creation.
class Person(object): def __init__(self, name): self.name = name me = Person("TheLazyScripter") print me.name
Python Tutorial: Passing Arguments, The passing of parameters and arguments in Python. last) <ipython-input-29-b0693d70ca11> in <module> 1 l = [4,7,9,45,-3.7,99] ----> 2 arithmetic_mean(l) To create a person object using this class, we could supply arguments directly without requiring user input. See below. #instance by supplying arguments person1 = Person('John', 'Doe') person1.show_full_name() To get user input for the first name and last name, we can have input prompts when we are setting the attributes. See below.
class name: def __init__(self, name): self.name = name print("name: "+name)
john = name("john")
Using user input in python class __init__ function, To create a person object using this class, we could supply arguments directly without requiring user input. See below. #instance by supplying Python Class inheritance and using variables the correct input for the hosts parameter that is needed to make an instance of Ping needs to come from a property
Python Classes and Objects, Python Class defines the blueprint to create objects. Learn about Python class definition, python class constructor, Python class variables and functions. 9.2. Python Scopes and Namespaces¶. Before introducing classes, I first have to tell you something about Python’s scope rules. Class definitions play some neat tricks with namespaces, and you need to know how scopes and namespaces work to fully understand what’s going on.
Understanding self and __init__ method in python Class , Understand self and __init__ method in python Class? self method the object (instance of class) automatically passes as a first argument along with how to newly input object parameters dynamically taking input values Python Objects and Classes. Python is an object oriented programming language. Unlike procedure oriented programming, where the main emphasis is on functions, object oriented programming stresses on objects. An object is simply a collection of data (variables) and methods (functions) that act on those data.
self in Python, Demystified, Generally, when we call a method with some arguments, the corresponding class function is called by placing the method's object before the first argument. So, Python Classes/Objects. Python is an object oriented programming language. Almost everything in Python is an object, with its properties and methods. A Class is like an object constructor, or a "blueprint" for creating objects.
- Why do you think it is not possible? start from here: docs.python.org/3/tutorial/classes.html#a-first-look-at-classes
- sopython.com/wiki/What_tutorial_should_I_read%3F - any introductory Python tutorial will cover this kind of basic OOP.
- @jonrsharpe - your link redirects to 404, here is the repost: sopython.com/wiki/What_tutorial_should_I_read%3F