





'''simple docstring'''






from __future__ import annotations

lowerCAmelCase									=   'Muhammad Umer Farooq'
lowerCAmelCase									=   'MIT'
lowerCAmelCase									=   '1.0.0'
lowerCAmelCase									=   'Muhammad Umer Farooq'
lowerCAmelCase									=   'contact@muhammadumerfarooq.me'
lowerCAmelCase									=   'Alpha'

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

import requests
class 		lowerCamelCase	(   _A							):



	def __init__( self		,   a_						):
			super().__init__()
			lowerCAmelCase  :     list[str]       						= []
			lowerCAmelCase  :     Tuple       						= domain





	def 	_lowerCamelCase     ( self		,   a_		,   a_						):



			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		,   lowerCamelCase_						)
											self.urls.append(lowerCamelCase_						)






def   __A    (				a_    :	str						):
		return ".".join(get_sub_domain_name(_A						).split("."						)[-2:]						)






def   __A    (				a_    :	str						):
		return parse.urlparse(_A						).netloc






def   __A    (				a_    :	str = "https://github.com"						):
		lowerCAmelCase  :     Tuple       						= get_domain_name(_A						)

		# Initialize the parser
		lowerCAmelCase  :     Optional[int]       						= Parser(_A						)

		try:
				# Open URL
				lowerCAmelCase  :     List[Any]       						= requests.get(_A						)

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

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




'''simple docstring'''

def __UpperCamelCase( _A       :					float	,      _A       :					list[float]     ):
   '''simple docstring'''
   if discount_rate < 0:
      raise ValueError('''Discount rate cannot be negative'''     )
   if not cash_flows:
      raise ValueError('''Cash flows list cannot be empty'''     )
   UpperCAmelCase__				:					str 					=	sum(
       cash_flow / ((1 + discount_rate) ** i) for i, cash_flow in enumerate(_A     )     )
   return round(_A	,      ndigits=2     )


if __name__ == "__main__":
  import doctest

  doctest.testmod()




