محیط و مساحت دایره

from math import pi
try:
    radius = float(input("Enter radius: "))
    if radius > 0 :
        circumference = 2 * pi * radius
        area = pi * (radius ** 2)
        print(f"circumference : {circumference:.2f}   area : {area:.2f}")
    else :
        print("Please enter a number greater than zero.")
except :
    print("Error.. Please enter only numbers.")

1PI=3.14
2r=float(input ('r: '))
3p=(r *r*PI)
4s=(2*r*PI)
5print(p,'m^2',s,'m')

#کد حساب مساحت و محیط دایره
a = int(input('شعاع را وارد کنید : '))
PI = 3.14
masahat = a * a * PI
mohit = a * 2 * PI
print('masahat :', masahat)
print('mohit :',mohit)

r = float(input("shoa:"))
print ("masahat :", (r*r*3.14) )
print ("mohit :", (r*2*3.14))

class PS:
    def __init__(self,shoah):
        self.shoah = shoah
    def ps_cricle(self):
        S = self.shoah * self.shoah * 3.14
        P = (self.shoah * 2) * 3.14
        return f"S = {S}\np = {P}"
circle = int(input("enter your number ="))
print(PS(circle).ps_cricle())