


'''simple docstring'''






from __future__ import annotations

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

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

import requests




class  a     (     _SCREAMING_SNAKE_CASE       ):
 def __init__( self      ,				__magic_name__						)					->							None:
      super().__init__()
      _a			      =							[]
      _a			      =							domain




 def 							__UpperCAmelCase		( self      ,				__magic_name__      ,				__magic_name__						)					->							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:
                          _a			      =							parse.urljoin(self.domain      ,				__magic_name__						)
                          self.urls.append(__magic_name__						)






def 	_A				(lowerCAmelCase__  :str		)   ->  str:




     '''simple docstring'''



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






def 	_A				(lowerCAmelCase__  :str		)   ->  str:




     '''simple docstring'''



     return parse.urlparse(lowerCAmelCase__		).netloc






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




     '''simple docstring'''



     _a			      =							get_domain_name(lowerCAmelCase__		)

     # Initialize the parser
     _a			      =							Parser(lowerCAmelCase__		)

     try:
          # Open URL
          _a			      =							requests.get(lowerCAmelCase__		)

          # 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(lowerCAmelCase__		)
                    # 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(lowerCAmelCase__		)
               except ValueError:
                    pass
     except ValueError:
          raise SystemExit(1		)

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


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





'''simple docstring'''






import numpy as np
import qiskit






def 	_A				(lowerCAmelCase__  :int = 8				,						lowerCAmelCase__  :int | None = None		)   ->  str:




     '''simple docstring'''



     _a			      =							np.random.default_rng(seed=lowerCAmelCase__		)

     # Roughly 25% of the qubits will contribute to the key.
     # So we take more than we need.
     _a			      =							6 * key_len
     # Measurement basis for Alice's qubits.
     _a			      =							rng.integers(2				,						size=lowerCAmelCase__		)
     # The set of states Alice will prepare.
     _a			      =							rng.integers(2				,						size=lowerCAmelCase__		)
     # Measurement basis for Bob's qubits.
     _a			      =							rng.integers(2				,						size=lowerCAmelCase__		)

     # Quantum Circuit to simulate BB84
     _a			      =							qiskit.QuantumCircuit(lowerCAmelCase__				,						name='BB84'		)

     # Alice prepares her qubits according to rules above.
     for index, _ in enumerate(lowerCAmelCase__		):
          if alice_state[index] == 1:
               bbaa_circ.x(lowerCAmelCase__		)
          if alice_basis[index] == 1:
               bbaa_circ.h(lowerCAmelCase__		)
     bbaa_circ.barrier()

     # Bob measures the received qubits according to rules above.
     for index, _ in enumerate(lowerCAmelCase__		):
          if bob_basis[index] == 1:
               bbaa_circ.h(lowerCAmelCase__		)

     bbaa_circ.barrier()
     bbaa_circ.measure_all()

     # Simulate the quantum circuit.
     _a			      =							qiskit.Aer.get_backend('aer_simulator'		)
     # We only need to run one shot because the key is unique.
     # Multiple shots will produce the same key.
     _a			      =							qiskit.execute(lowerCAmelCase__				,						lowerCAmelCase__				,						shots=1				,						seed_simulator=lowerCAmelCase__		)
     # Returns the result of measurement.
     _a			      =							job.result().get_counts(lowerCAmelCase__		).most_frequent()

     # Extracting the generated key from the simulation results.
     # Only keep measurement results where Alice and Bob chose the same basis.
     _a			      =							''.join(
         [
             result_bit
             for alice_basis_bit, bob_basis_bit, result_bit in zip(
                 lowerCAmelCase__				,						lowerCAmelCase__				,						lowerCAmelCase__		)
             if alice_basis_bit == bob_basis_bit
         ]		)

     # Get final key. Pad with 0 if too short, otherwise truncate.
     _a			      =							gen_key[:key_len] if len(lowerCAmelCase__		) >= key_len else gen_key.ljust(lowerCAmelCase__				,						'0'		)
     return key


if __name__ == "__main__":
 print(f'''The generated key is : {bbaa(8, seed=0)}''')
 from doctest import testmod

 testmod()

