from __future__ import annotations

lowerCAmelCase			:							Optional[int]     ="Muhammad Umer Farooq"
lowerCAmelCase			:							Optional[Any]     ="MIT"
lowerCAmelCase			:							Any     ="1.0.0"
lowerCAmelCase			:							Tuple     ="Muhammad Umer Farooq"
lowerCAmelCase			:							Union[str, Any]     ="contact@muhammadumerfarooq.me"
lowerCAmelCase			:							Union[str, Any]     ="Alpha"

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

import requests




class 	__snake_case	( __lowerCAmelCase		):





      '''simple docstring'''






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


          """simple docstring"""


          super().__init__()
          _lowerCamelCase     :		list[str] 						=						[]
          _lowerCamelCase     :		Any 						=						domain




      def 	_SCREAMING_SNAKE_CASE    (					self     :				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:
                          _lowerCamelCase     :		List[Any] 						=						parse.urljoin(self.domain    ,  _UpperCamelCase)
                          self.urls.append(_UpperCamelCase)







def 						A__  (					__A	):







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







def 						A__  (					__A	):







    '''simple docstring'''
    return parse.urlparse(__A	).netloc







def 						A__  (					__A = "https://github.com"	):







    '''simple docstring'''
    _lowerCamelCase     :		int 						=						get_domain_name(__A	)

    # Initialize the parser
    _lowerCamelCase     :		Union[str, Any] 						=						Parser(__A	)

    try:
        # Open URL
        _lowerCamelCase     :		Optional[int] 						=						requests.get(__A	)

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

        # Get links and loop through
        _lowerCamelCase     :		Union[str, Any] 						=						set()
        for link in parser.urls:
            # open URL.
            # read = requests.get(link)
            try:
                _lowerCamelCase     :		Any 						=						requests.get(__A	)
                # Get the valid email.
                _lowerCamelCase     :		Optional[int] 						=						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__":
    lowerCAmelCase			:							Dict     =emails_from_url("https://github.com")
    print(F"""{len(emails)} emails found:""")
    print("\n".join(sorted(emails)))





from __future__ import annotations

lowerCAmelCase			:							int     =[]







def 						A__  (					__A   , __A   , __A	):







    '''simple docstring'''
    for i in range(len(__A	)	):
        if board[row][i] == 1:
            return False
    for i in range(len(__A	)	):
        if board[i][column] == 1:
            return False
    for i, j in zip(range(__A   , -1   , -1	)   , range(__A   , -1   , -1	)	):
        if board[i][j] == 1:
            return False
    for i, j in zip(range(__A   , -1   , -1	)   , range(__A   , len(__A	)	)	):
        if board[i][j] == 1:
            return False
    return True







def 						A__  (					__A   , __A	):







    '''simple docstring'''
    if row >= len(__A	):
        solution.append(__A	)
        printboard(__A	)
        print()
        return True
    for i in range(len(__A	)	):
        if is_safe(__A   , __A   , __A	):
            _lowerCamelCase     :		int 						=						1
            solve(__A   , row + 1	)
            _lowerCamelCase     :		List[str] 						=						0
    return False







def 						A__  (					__A	):







    '''simple docstring'''
    for i in range(len(__A	)	):
        for j in range(len(__A	)	):
            if board[i][j] == 1:
                print("""Q"""   , end=""" """	)
            else:
                print("""."""   , end=""" """	)
        print()


# n=int(input("The no. of queens"))
lowerCAmelCase			:							int     =8
lowerCAmelCase			:							Union[str, Any]     =[[0 for i in range(n)] for j in range(n)]
solve(board, 0)
print("The total no. of solutions are :", len(solution))




