





from __future__ import annotations

_A :   Optional[Any]  			=  'Muhammad Umer Farooq'
_A :   int  			=  'MIT'
_A :   int  			=  '1.0.0'
_A :   Optional[Any]  			=  'Muhammad Umer Farooq'
_A :   Any  			=  'contact@muhammadumerfarooq.me'
_A :   List[str]  			=  'Alpha'

import re
from html.parser import HTMLParser
from urllib import parse

import requests


class        __SCREAMING_SNAKE_CASE      (			lowerCAmelCase_ ):







       def __init__(				self					:     Union[str, Any]		, A					:     str      )       ->None:
          super().__init__()
          lowerCamelCase__       :						list[str]        =							[]
          lowerCamelCase__       :						Tuple        =							domain







       def 						__lowerCamelCase   (				self					:     str		, A					:     str		, A					:     list[tuple[str, str | None]]      )       ->None:
          # Only parse the 'anchor' tag.
          if tag == "a":
             # Check the list of defined attributes.
             for name, value in attrs:
                # If href is defined, and not empty nor # print it.
                if name == "href" and value != "#" and value != "":
                   # If not already in urls.
                   if value not in self.urls:
                      lowerCamelCase__       :						Optional[Any]        =							parse.urljoin(self.domain		, A      )
                      self.urls.append(A      )



def 	_a						(   UpperCAmelCase					)    ->    str:







   """simple docstring"""
   return ".".join(get_sub_domain_name(UpperCAmelCase					).split('''.'''					)[-2:]					)



def 	_a						(   UpperCAmelCase					)    ->    str:







   """simple docstring"""
   return parse.urlparse(UpperCAmelCase					).netloc



def 	_a						(   UpperCAmelCase = "https://github.com"					)    ->    list[str]:







   """simple docstring"""
   lowerCamelCase__       :						List[str]        =							get_domain_name(UpperCAmelCase					)

   # Initialize the parser
   lowerCamelCase__       :						Dict        =							Parser(UpperCAmelCase					)

   try:
      # Open URL
      lowerCamelCase__       :						List[str]        =							requests.get(UpperCAmelCase					)

      # pass the raw HTML to the parser to get links
      parser.feed(r.text					)

      # Get links and loop through
      lowerCamelCase__       :						Optional[Any]        =							set()
      for link in parser.urls:
         # open URL.
         # read = requests.get(link)
         try:
            lowerCamelCase__       :						Tuple        =							requests.get(UpperCAmelCase					)
            # Get the valid email.
            lowerCamelCase__       :						List[str]        =							re.findall('''[a-zA-Z0-9]+@''' + domain      ,  read.text					)
            # If not in list then append it.
            for email in emails:
               valid_emails.add(UpperCAmelCase					)
         except ValueError:
            pass
   except ValueError:
      raise SystemExit(1					)

   # Finally return a sorted list of email addresses with no duplicates.
   return sorted(UpperCAmelCase					)


if __name__ == "__main__":
       _A :   List[str]  			=  emails_from_url('https://github.com')
       print(F'''{len(emails)} emails found:''')
       print('\n'.join(sorted(emails)))










import math
import random



def 	_a						(   UpperCAmelCase      ,  UpperCAmelCase = False					)    ->    float:







   """simple docstring"""
   if deriv:
      return value * (1 - value)
   return 1 / (1 + math.exp(-value					))


# Initial Value
_A :   Tuple  			=  0.02



def 	_a						(   UpperCAmelCase      ,  UpperCAmelCase					)    ->    float:







   """simple docstring"""
   lowerCamelCase__       :						List[Any]        =							float(2 * (random.randint(1      ,  100					)) - 1					)

   for _ in range(UpperCAmelCase					):
      # Forward propagation
      lowerCamelCase__       :						Optional[int]        =							sigmoid_function(INITIAL_VALUE * weight					)
      # How much did we miss?
      lowerCamelCase__       :						int        =							(expected / 100) - layer_a
      # Error delta
      lowerCamelCase__       :						Union[str, Any]        =							layer_1_error * sigmoid_function(UpperCAmelCase      ,  UpperCAmelCase					)
      # Update weight
      weight += INITIAL_VALUE * layer_1_delta

   return layer_a * 100


if __name__ == "__main__":
       import doctest

       doctest.testmod()

       _A :   Union[str, Any]  			=  int(input('Expected value: '))
       _A :   int  			=  int(input('Number of propagations: '))
       print(forward_propagation(expected, number_propagations))



