[python] Python class input argument

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?

This question is related to python oop

The answer is


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

Remove the 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

class Person:

def init(self,name,age,weight,sex,mob_no,place):

self.name = str(name)
self.age = int(age)
self.weight = int(weight)
self.sex = str(sex)
self.mob_no = int(mob_no)
self.place = str(place)

Creating an instance to class Person

p1 = Person(Muthuswamy,50,70,Male,94*****23,India)

print(p1.name)

print(p1.place)

Output

Muthuswamy

India

How about this?


class name(str):
    def __init__(self, name):
        print (name)
# ------
person1 = name("jean")
person2 = name("dean")
print('===')
print(person1)
print(person2)

Output:

jean
dean
===
jean
dean

Python Classes

class name:
    def __init__(self, name):
        self.name = name
        print("name: "+name)

Somewhere else:

john = name("john")

Output:
name: john


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.

For example:

class name(object):
  def __init__(self, name):
    self.name = name
  def PrintName(self):
    print self.name

a = name('bob')
a.PrintName()
bob