

'''simple docstring'''
from __future__ import annotations

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

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

import requests

class 						__magic_name__   (							__SCREAMING_SNAKE_CASE ):







 def __init__(       self  , snake_case_   ):
   super().__init__()
   lowercase									=[]
   lowercase									=domain







 def 						_A(       self  , snake_case_  , snake_case_   ):
   # 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:
           lowercase									=parse.urljoin(self.domain  , snake_case_   )
           self.urls.append(snake_case_   )




def 	UpperCamelCase   (       lowercase_						:    str	)		->	str:




  '''simple docstring'''



  return ".".join(get_sub_domain_name(lowercase_	).split('''.'''	)[-2:]	)




def 	UpperCamelCase   (       lowercase_						:    str	)		->	str:




  '''simple docstring'''



  return parse.urlparse(lowercase_	).netloc




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




  '''simple docstring'''



  lowercase									=get_domain_name(lowercase_	)

  # Initialize the parser
  lowercase									=Parser(lowercase_	)

  try:
    # Open URL
    lowercase									=requests.get(lowercase_	)

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

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

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


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



from __future__ import annotations

from typing import Any

class __UpperCamelCase     :






					'''simple docstring'''



					def __init__(				self				,      lowerCamelCase__						):
						UpperCAmelCase__:	Optional[int]									= num_of_nodes
						UpperCAmelCase__:	list[list[int]]									= []
						UpperCAmelCase__:	dict[int, int]									= {}





					def    _UpperCAmelCase    (				self				,      lowerCamelCase__				,      lowerCamelCase__				,      lowerCamelCase__						):
						self.m_edges.append([u_node, v_node, weight]						)





					def    _UpperCAmelCase    (				self				,      lowerCamelCase__						):

						if self.m_component[u_node] == u_node:
							return u_node
						return self.find_component(self.m_component[u_node]						)





					def    _UpperCAmelCase    (				self				,      lowerCamelCase__						):

						if self.m_component[u_node] != u_node:
							for k in self.m_component:
								UpperCAmelCase__:	Optional[Any]									= self.find_component(lowerCamelCase__						)





					def    _UpperCAmelCase    (				self				,      lowerCamelCase__				,      lowerCamelCase__				,      lowerCamelCase__						):

						if component_size[u_node] <= component_size[v_node]:
							UpperCAmelCase__:	Tuple									= v_node
							component_size[v_node] += component_size[u_node]
							self.set_component(lowerCamelCase__						)

						elif component_size[u_node] >= component_size[v_node]:
							UpperCAmelCase__:	Dict									= self.find_component(lowerCamelCase__						)
							component_size[u_node] += component_size[v_node]
							self.set_component(lowerCamelCase__						)





					def    _UpperCAmelCase    (				self						):
						UpperCAmelCase__:	Dict									= []
						UpperCAmelCase__:	int									= 0

						UpperCAmelCase__:	list[Any]									= [-1] * self.m_num_of_nodes

						# A list of components (initialized to all of the nodes)
						for node in range(self.m_num_of_nodes						):
							self.m_component.update({node: node}						)
							component_size.append(1						)

						UpperCAmelCase__:	Union[str, Any]									= self.m_num_of_nodes

						while num_of_components > 1:
							for edge in self.m_edges:
								UpperCAmelCase__							,						UpperCAmelCase__							,						UpperCAmelCase__:	str									= edge

								UpperCAmelCase__:	str									= self.m_component[u]
								UpperCAmelCase__:	Optional[Any]									= self.m_component[v]

								if u_component != v_component:

									for component in (u_component, v_component):
										if (
										    minimum_weight_edge[component] == -1
										    or minimum_weight_edge[component][2] > w
										):
											UpperCAmelCase__:	List[Any]									= [u, v, w]

							for edge in minimum_weight_edge:
								if isinstance(lowerCamelCase__				,      lowerCamelCase__						):
									UpperCAmelCase__							,						UpperCAmelCase__							,						UpperCAmelCase__:	str									= edge

									UpperCAmelCase__:	str									= self.m_component[u]
									UpperCAmelCase__:	int									= self.m_component[v]

									if u_component != v_component:
										mst_weight += w
										self.union(lowerCamelCase__				,      lowerCamelCase__				,      lowerCamelCase__						)
										print(F"Added edge [{u} - {v}]\nAdded weight: {w}\n"						)
										num_of_components -= 1

							UpperCAmelCase__:	Any									= [-1] * self.m_num_of_nodes
						print(F"The total weight of the minimal spanning tree is: {mst_weight}"						)



def 			_A	(      ):
	pass


if __name__ == "__main__":
					import doctest

					doctest.testmod()