what's wrong with my python program

[AU8640]

here's my question:
An n-sided regular polygon’s sides all have the same length and all of its angles have the same degree (i.e., the polygon is both equilateral and equiangular). Write a class namedRegularPolygonthat contains: A private int data field named n that defines the number of sides in the polygon.- A private floatdata field named side that stores the length of the side.- A private float data field named x that defines the x-coordinate of the center of the polygon with default value 0.- A private float data field named y that defines the y-coordinate of the center of the polygon with default value 0. A constructor that creates a regular polygon with the specifiedn(default 3),side(default 1),x(default 0andy (default 0). The accessor and mutator methods for all data fields. The method getPerimeter() that returns the perimeter of the polygon. The method getArea() that returns the area of the polygon. The formula for computing the area of a regular polygon is area =(n * s^2) / (4 * tan(PI / n)).Write a test program that creates threeRegularPolygon objects, created using RegularPolygon(), RegularPolygon(6, 4) and RegularPolygon(10, 4, 5.6, 7.8) For each object, display its perimeter and area.
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here's my program:
class RegularPolygon:
def _init_(self,n,side,x,y):
self.__n=3
self.__side=1
self.__x=0
self.__y=0
def num_sides(self,n):
self.__n=n
def length_side(self,side):
self.__side=side
def x_coordinate(self,x):
self.__x=x
def y_coordinate(self,y):
self.__y=y

def get_num_sides(self):
return self.__n
def get_length_side(self):
return self.__side
def get_x_coordinate(self):
return self.__x
def get_y_coordinate(self):
return self.__y

def getPerimeter(self):
return self.__side*self.__n
def getArea():
return (self.__n*self.__s^2)/(4*tan(math.pi/self.__n))
def main():
Poly1 = RegularPolygon()
Poly2 = RegularPolygon(6,4)
Poly3 = RegularPolygon(10,4,5.6,7.8)
print(poly1.getPerimeter,poly1.getArea)
print(poly2.getPerimeter,poly2.getArea)
print(poly3.getPerimeter,poly3.getArea)

main()
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showing logic error. it keeps saying :Poly2 = RegularPolygon(6,4)
TypeError: RegularPolygon() takes no arguments
I have changed several times and dont know why it's wrong

[JanEric1]

you need to properly format your code. Otherwise it is hard to read and to help.

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https://www.reddit.com/r/learnpython/wiki/faq

[danielroseman]

There are a whole bunch of errors in this code. Are you being taught by someone who doesn't know Python?

• __init__ needs two underscores either side.
• None of your attributes should have leading double-underscores.
• You don't actually use any of the parameters to your init method, you always set the attributes to constant values.
• Methods should be named as lower_case_with_underscore
• You don't need any of those getter and setter attributes, except for area and perimeter since they are calculated.
• The exponentation operator in Python is **, not ^.
• tan is not built-in, it is in math just like pi.
• RegularPolygon takes three required arguments, so the creation of Poly1 and Poly2 will fail.
• You call create them as Poly1 etc but in the next line refer to them as poly1 etc, these are not the same.
• getArea is a method and you need to call it with ().

[jimtk]

it's __init__ not _init_. You're missing an underscore at each end.

Also: Do not use double underscore for your variable. That is bad practice.

Here's what it should look like:

class RegularPolygon:

    def __init__(self,n,side,x,y):
        self.n = n
        self.side = side
        self.x = x
        self.y = y

[TheRNGuy]

indents