



from typing import Any



class     lowerCAmelCase_		:
       def __init__(      self,      SCREAMING_SNAKE_CASE_	)					->		Optional[Any]:
          UpperCamelCase   :  Dict						     =     data
          UpperCamelCase   :  str						     =     None






       def __repr__(      self	)					->		str:
          return F"""Node({self.data})"""






class     lowerCAmelCase_		:
       def __init__(      self	)					->		Any:
          UpperCamelCase   :  str						     =     None
       def __iter__(      self	)					->		Any:
          UpperCamelCase   :  Tuple						     =     self.head
          while node:
             yield node.data
             UpperCamelCase   :  List[Any]						     =     node.next
       def __len__(      self	)					->		int:
          return sum(1 for _ in self	)
       def __repr__(      self	)					->		str:
          return "->".join([str(SCREAMING_SNAKE_CASE_	) for item in self]	)
       def __getitem__(      self,      SCREAMING_SNAKE_CASE_	)					->		Any:
          if not 0 <= index < len(self	):
             raise ValueError('list index out of range.'	)
          for i, node in enumerate(self	):
             if i == index:
                return node
          return None
       def __setitem__(      self,      SCREAMING_SNAKE_CASE_,      SCREAMING_SNAKE_CASE_	)					->		None:
          if not 0 <= index < len(self	):
             raise ValueError('list index out of range.'	)
          UpperCamelCase   :  List[str]						     =     self.head
          for _ in range(SCREAMING_SNAKE_CASE_	):
             UpperCamelCase   :  Union[str, Any]						     =     current.next
          UpperCamelCase   :  Dict						     =     data
       def  snake_case_	(      self,      SCREAMING_SNAKE_CASE_	)					->		None:
          self.insert_nth(len(self	),      SCREAMING_SNAKE_CASE_	)
       def  snake_case_	(      self,      SCREAMING_SNAKE_CASE_	)					->		None:
          self.insert_nth(0,      SCREAMING_SNAKE_CASE_	)
       def  snake_case_	(      self,      SCREAMING_SNAKE_CASE_,      SCREAMING_SNAKE_CASE_	)					->		None:
          if not 0 <= index <= len(self	):
             raise IndexError('list index out of range'	)
          UpperCamelCase   :  Any						     =     Node(SCREAMING_SNAKE_CASE_	)
          if self.head is None:
             UpperCamelCase   :  Optional[int]						     =     new_node
          elif index == 0:
             UpperCamelCase   :  Any						     =     self.head  # link new_node to head
             UpperCamelCase   :  Tuple						     =     new_node
          else:
             UpperCamelCase   :  str						     =     self.head
             for _ in range(index - 1	):
                UpperCamelCase   :  Dict						     =     temp.next
             UpperCamelCase   :  int						     =     temp.next
             UpperCamelCase   :  Optional[int]						     =     new_node
       def  snake_case_	(      self	)					->		None:  # print every node data
          print(self	)
       def  snake_case_	(      self	)					->		Any:
          return self.delete_nth(0	)
       def  snake_case_	(      self	)					->		Any:  # delete from tail
          return self.delete_nth(len(self	) - 1	)
       def  snake_case_	(      self,      SCREAMING_SNAKE_CASE_ = 0	)					->		Any:
          if not 0 <= index <= len(self	) - 1:  # test if index is valid
             raise IndexError('List index out of range.'	)
          UpperCamelCase   :  List[str]						     =     self.head  # default first node
          if index == 0:
             UpperCamelCase   :  int						     =     self.head.next
          else:
             UpperCamelCase   :  List[str]						     =     self.head
             for _ in range(index - 1	):
                UpperCamelCase   :  str						     =     temp.next
             UpperCamelCase   :  Tuple						     =     temp.next
             UpperCamelCase   :  Any						     =     temp.next.next
          return delete_node.data
       def  snake_case_	(      self	)					->		bool:
          return self.head is None






       def  snake_case_	(      self	)					->		None:
          UpperCamelCase   :  int						     =     None
          UpperCamelCase   :  Optional[Any]						     =     self.head

          while current:
             # Store the current node's next node.
             UpperCamelCase   :  str						     =     current.next
             # Make the current node's next point backwards
             UpperCamelCase   :  List[str]						     =     prev
             # Make the previous node be the current node
             UpperCamelCase   :  Tuple						     =     current
             # Make the current node the next node (to progress iteration)
             UpperCamelCase   :  Optional[Any]						     =     next_node
          # Return prev in order to put the head at the end
          UpperCamelCase   :  List[Any]						     =     prev






def 		UpperCamelCase     (       )     ->					None:
   UpperCamelCase   :  Union[str, Any]						     =     LinkedList()
   assert linked_list.is_empty() is True
   assert str(snake_case__     ) == ""

   try:
      linked_list.delete_head()
      raise AssertionError  # This should not happen.
   except IndexError:
      assert True  # This should happen.

   try:
      linked_list.delete_tail()
      raise AssertionError  # This should not happen.
   except IndexError:
      assert True  # This should happen.

   for i in range(10     ):
      assert len(snake_case__     ) == i
      linked_list.insert_nth(snake_case__	,					i + 1     )
   assert str(snake_case__     ) == "->".join(str(snake_case__     ) for i in range(1	,					11     )     )

   linked_list.insert_head(0     )
   linked_list.insert_tail(11     )
   assert str(snake_case__     ) == "->".join(str(snake_case__     ) for i in range(0	,					12     )     )

   assert linked_list.delete_head() == 0
   assert linked_list.delete_nth(9     ) == 10
   assert linked_list.delete_tail() == 11
   assert len(snake_case__     ) == 9
   assert str(snake_case__     ) == "->".join(str(snake_case__     ) for i in range(1	,					10     )     )

   assert all(linked_list[i] == i + 1 for i in range(0	,					9     )     ) is True

   for i in range(0	,					9     ):
      UpperCamelCase   :  Union[str, Any]						     =     -i
   assert all(linked_list[i] == -i for i in range(0	,					9     )     ) is True

   linked_list.reverse()
   assert str(snake_case__     ) == "->".join(str(snake_case__     ) for i in range(-8	,					1     )     )
def 		UpperCamelCase     (       )     ->					None:
   UpperCamelCase   :  Optional[Any]						     =     [
       -9,
       100,
       Node(77345112     ),
       'dlrow olleH',
       7,
       5555,
       0,
       -192.55555,
       'Hello, world!',
       77.9,
       Node(10     ),
       None,
       None,
       12.20,
   ]
   UpperCamelCase   :  Any						     =     LinkedList()

   for i in test_input:
      linked_list.insert_tail(snake_case__     )

   # Check if it's empty or not
   assert linked_list.is_empty() is False
   assert (
       str(snake_case__     ) == "-9->100->Node(77345112)->dlrow olleH->7->5555->0->"
       "-192.55555->Hello, world!->77.9->Node(10)->None->None->12.2"
   )

   # Delete the head
   UpperCamelCase   :  Dict						     =     linked_list.delete_head()
   assert result == -9
   assert (
       str(snake_case__     ) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
       "Hello, world!->77.9->Node(10)->None->None->12.2"
   )

   # Delete the tail
   UpperCamelCase   :  Any						     =     linked_list.delete_tail()
   assert result == 12.2
   assert (
       str(snake_case__     ) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
       "Hello, world!->77.9->Node(10)->None->None"
   )

   # Delete a node in specific location in linked list
   UpperCamelCase   :  Tuple						     =     linked_list.delete_nth(10     )
   assert result is None
   assert (
       str(snake_case__     ) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
       "Hello, world!->77.9->Node(10)->None"
   )

   # Add a Node instance to its head
   linked_list.insert_head(Node('Hello again, world!'     )     )
   assert (
       str(snake_case__     )
       == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
       "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None"
   )

   # Add None to its tail
   linked_list.insert_tail(snake_case__     )
   assert (
       str(snake_case__     )
       == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
       "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None->None"
   )

   # Reverse the linked list
   linked_list.reverse()
   assert (
       str(snake_case__     )
       == "None->None->Node(10)->77.9->Hello, world!->-192.55555->0->5555->"
       "7->dlrow olleH->Node(77345112)->100->Node(Hello again, world!)"
   )
def 		UpperCamelCase     (       )     ->					int:
   from doctest import testmod

   testmod()

   UpperCamelCase   :  Union[str, Any]						     =     LinkedList()
   linked_list.insert_head(input('Inserting 1st at head '     ).strip()     )
   linked_list.insert_head(input('Inserting 2nd at head '     ).strip()     )
   print('\nPrint list:'     )
   linked_list.print_list()
   linked_list.insert_tail(input('\nInserting 1st at tail '     ).strip()     )
   linked_list.insert_tail(input('Inserting 2nd at tail '     ).strip()     )
   print('\nPrint list:'     )
   linked_list.print_list()
   print('\nDelete head'     )
   linked_list.delete_head()
   print('Delete tail'     )
   linked_list.delete_tail()
   print('\nPrint list:'     )
   linked_list.print_list()
   print('\nReverse linked list'     )
   linked_list.reverse()
   print('\nPrint list:'     )
   linked_list.print_list()
   print('\nString representation of linked list:'     )
   print(snake_case__     )
   print('\nReading/changing Node data using indexing:'     )
   print(F"""Element at Position 1: {linked_list[1]}"""     )
   UpperCamelCase   :  int						     =     input('Enter New Value: '     ).strip()
   print('New list:'     )
   print(snake_case__     )
   print(F"""length of linked_list is : {len(snake_case__     )}"""     )


if __name__ == "__main__":
    main()








import argparse
import shlex

import runhouse as rh


if __name__ == "__main__":
    # Refer to https://runhouse-docs.readthedocs-hosted.com/en/latest/api/python/cluster.html#hardware-setup for cloud access
    # setup instructions, if using on-demand hardware

    # If user passes --user <user> --host <host> --key_path <key_path> <example> <args>, fill them in as BYO cluster
    # If user passes --instance <instance> --provider <provider> <example> <args>, fill them in as on-demand cluster
    # Throw an error if user passes both BYO and on-demand cluster args
    # Otherwise, use default values
    __UpperCAmelCase	       =	argparse.ArgumentParser()
    parser.add_argument('''--user''', type=str, default='''ubuntu''')
    parser.add_argument('''--host''', type=str, default='''localhost''')
    parser.add_argument('''--key_path''', type=str, default=None)
    parser.add_argument('''--instance''', type=str, default='''V100:1''')
    parser.add_argument('''--provider''', type=str, default='''cheapest''')
    parser.add_argument('''--use_spot''', type=bool, default=False)
    parser.add_argument('''--example''', type=str, default='''pytorch/text-generation/run_generation.py''')
    __UpperCAmelCase       ,  __UpperCAmelCase	       =	parser.parse_known_args()
    if args.host != "localhost":
        if args.instance != "V100:1" or args.provider != "cheapest":
            raise ValueError('''Cannot specify both BYO and on-demand cluster args''')
        __UpperCAmelCase	       =	rh.cluster(
            name='''rh-cluster''', ips=[args.host], ssh_creds={'''ssh_user''': args.user, '''ssh_private_key''': args.key_path}
        )
    else:
        __UpperCAmelCase	       =	rh.cluster(
            name='''rh-cluster''', instance_type=args.instance, provider=args.provider, use_spot=args.use_spot
        )
    __UpperCAmelCase	       =	args.example.rsplit('''/''', 1)[0]

    # Set up remote environment
    cluster.install_packages(['''pip:./'''])  # Installs transformers from local source
    # Note transformers is copied into the home directory on the remote machine, so we can install from there
    cluster.run([F"""pip install -r transformers/examples/{example_dir}/requirements.txt"""])
    cluster.run(['''pip install torch --upgrade --extra-index-url https://download.pytorch.org/whl/cu117'''])

    # Run example. You can bypass the CLI wrapper and paste your own code here.
    cluster.run([F"""python transformers/examples/{args.example} {" ".join(shlex.quote(arg) for arg in unknown)}"""])

    # Alternatively, we can just import and run a training function (especially if there's no wrapper CLI):
    # from my_script... import train
    # reqs = ['pip:./', 'torch', 'datasets', 'accelerate', 'evaluate', 'tqdm', 'scipy', 'scikit-learn', 'tensorboard']
    # launch_train_gpu = rh.function(fn=train,
    #                                system=gpu,
    #                                reqs=reqs,
    #                                name='train_bert_glue')
    #
    # We can pass in arguments just like we would to a function:
    # launch_train_gpu(num_epochs = 3, lr = 2e-5, seed = 42, batch_size = 16
    #                  stream_logs=True)



