






from __future__ import annotations

UpperCAmelCase__				   =		{
    "A": ["B", "C", "E"],
    "B": ["A", "D", "E"],
    "C": ["A", "F", "G"],
    "D": ["B"],
    "E": ["A", "B", "D"],
    "F": ["C"],
    "G": ["C"],
}






class 		lowercase_					:






      '''simple docstring'''




      def __init__(      self      :						Dict ,					__UpperCAmelCase      :						dict[str, list[str]] ,					__UpperCAmelCase      :						str  )    ->None:




       """simple docstring"""


       a		  =      graph
       # mapping node to its parent in resulting breadth first tree
       a		  =      {}
       a		  =      source_vertex







      def       __lowerCAmelCase					(      self      :						Union[str, Any]  )    ->None:




       """simple docstring"""


       a		  =      {self.source_vertex}
       a		  =      None
       a		  =      [self.source_vertex]  # first in first out queue

       while queue:
        a		  =      queue.pop(0  )
        for adjacent_vertex in self.graph[vertex]:
         if adjacent_vertex not in visited:
          visited.add(__UpperCAmelCase  )
          a		  =      vertex
          queue.append(__UpperCAmelCase  )







      def       __lowerCAmelCase					(      self      :						Optional[int] ,					__UpperCAmelCase      :						str  )    ->str:




       """simple docstring"""


       if target_vertex == self.source_vertex:
        return self.source_vertex

       a		  =      self.parent.get(__UpperCAmelCase  )
       if target_vertex_parent is None:
        a		  =      (
            F"""No path from vertex: {self.source_vertex} to vertex: {target_vertex}"""
        )
        raise ValueError(__UpperCAmelCase  )

       return self.shortest_path(__UpperCAmelCase  ) + F"""->{target_vertex}"""


if __name__ == "__main__":
     UpperCAmelCase__				   =		Graph(graph, "G")
     g.breath_first_search()
     print(g.shortest_path("D"))
     print(g.shortest_path("G"))
     print(g.shortest_path("Foo"))










from __future__ import annotations

UpperCAmelCase__				   =		"Muhammad Umer Farooq"
UpperCAmelCase__				   =		"MIT"
UpperCAmelCase__				   =		"1.0.0"
UpperCAmelCase__				   =		"Muhammad Umer Farooq"
UpperCAmelCase__				   =		"contact@muhammadumerfarooq.me"
UpperCAmelCase__				   =		"Alpha"

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

import requests






class 		lowercase_					(	lowercase   ):






      '''simple docstring'''




      def __init__(      self      :						Union[str, Any] ,					__UpperCAmelCase      :						str  )    ->None:




       """simple docstring"""


       super().__init__()
       a		  =      []
       a		  =      domain







      def       __lowerCAmelCase					(      self      :						List[str] ,					__UpperCAmelCase      :						str ,					__UpperCAmelCase      :						list[tuple[str, str | None]]  )    ->None:




       """simple docstring"""


       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:
           a		  =      parse.urljoin(self.domain ,					__UpperCAmelCase  )
           self.urls.append(__UpperCAmelCase  )
def 						_a    (      a :str )							->			str:
 return ".".join(get_sub_domain_name(a ).split('''.''' )[-2:] )
def 						_a    (      a :str )							->			str:
 return parse.urlparse(a ).netloc
def 						_a    (      a :str = "https://github.com" )							->			list[str]:
 a		  =      get_domain_name(a )

 # Initialize the parser
 a		  =      Parser(a )

 try:
  # Open URL
  a		  =      requests.get(a )

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

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

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


if __name__ == "__main__":
     UpperCAmelCase__				   =		emails_from_url("https://github.com")
     print(f"""{len(emails)} emails found:""")
     print("\n".join(sorted(emails)))


