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2 positional arguments but 3 were given

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Faithful Fly answered on October 21, 2020 Popularity 10/10 Helpfulness 2/10

answer 2 positional arguments but 3 were given

related takes 1 positional arguments but 2 were given

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related takes 2 positional arguments but 3 were given

2 positional arguments but 3 were given

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#Positional arguments are the amount of arguments passed through a function
#For example

def function(value1, value2):
	print(value1)
	print(value2)

function("value1","value2","value3")

Popularity 10/10 Helpfulness 2/10 Language typescript

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Tags: arguments typescript

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Contributed on Oct 21 2020

Faithful Fly

0 Answers Avg Quality 2/10

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takes 1 positional arguments but 2 were given

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In Python, this:

my_object.method("foo")
... is syntactic sugar, which the interpreter translates behind the scenes into:

MyClass.method(my_object, "foo")
... which, as you can see, does indeed have two arguments - it's just that the first one is implicit, from the point of view of the caller.

This is because most methods do some work with the object they're called on, so there needs to be some way for that object to be referred to inside the method. By convention, this first argument is called self inside the method definition:

class MyNewClass:

    def method(self, arg):
        print(self)
        print(arg)
If you call method("foo") on an instance of MyNewClass, it works as expected:

>>> my_new_object = MyNewClass()
>>> my_new_object.method("foo")
<__main__.MyNewClass object at 0x29045d0>
foo
Occasionally (but not often), you really don't care about the object that your method is bound to, and in that circumstance, you can decorate the method with the builtin staticmethod() function to say so:

class MyOtherClass:

    @staticmethod
    def method(arg):
        print(arg)
... in which case you don't need to add a self argument to the method definition, and it still works:

>>> my_other_object = MyOtherClass()
>>> my_other_object.method("foo")
foo

Popularity 9/10 Helpfulness 3/10 Language python

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Tags: arguments argu

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Contributed on Apr 08 2023

Vast Vendace

0 Answers Avg Quality 2/10

python takes 2 positional arguments but 3 were given

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#if you're getting this issue out of a class function
#don't forget to add "self" as the first parameter for your function
class myClass:
def myFunction(self,argument1,argument2)

#calling
#self isn't defined when calling the function
test = myClass()
test.myFunction(1,2)

Popularity 9/10 Helpfulness 1/10 Language python

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Tags: arguments argu

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Contributed on May 13 2022

Xombiehacker

0 Answers Avg Quality 2/10

takes 2 positional arguments but 3 were given

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-1

# just put self in other functions like this
class myclass:
  def __init__(self, parameter):
  	self.parameter = parameter
  def function(self, otherparameter):
    # put a self ^ there
    print(self.parameter + otherparameter)

object=myclass(1)
object.function(2)
# output is 3

Popularity 10/10 Helpfulness 1/10 Language python

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Tags: arguments argu

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Contributed on Jan 12 2021

Laith Striegher

0 Answers Avg Quality 2/10

2 positional arguments but 3 were given

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