from collections.abc import Sequence




def        lowerCAmelCase_			(					__A = None							)					->    int:







      '''simple docstring'''


      if nums is None or not nums:
            raise ValueError("Input sequence should not be empty"							)

      UpperCAmelCase__								=  nums[0]
      for i in range(1,  len(__A							)							):
            UpperCAmelCase__								=  nums[i]
            UpperCAmelCase__								=  max(__A,  ans + num,  __A							)

      return ans


if __name__ == "__main__":
      import doctest

      doctest.testmod()

      # Try on a sample input from the user
      UpperCamelCase__    							= int(input('Enter number of elements : ').strip())
      UpperCamelCase__    							= list(map(int, input('\nEnter the numbers : ').strip().split()))[:n]
      print(max_subsequence_sum(array))




import os
import zipfile

import pytest

from datasets.utils.extract import (
    BzipaExtractor,
    Extractor,
    GzipExtractor,
    LzaExtractor,
    SevenZipExtractor,
    TarExtractor,
    XzExtractor,
    ZipExtractor,
    ZstdExtractor,
)

from .utils import require_lza, require_pyazr, require_zstandard




@pytest.mark.parametrize(
    "compression_format, is_archive",  [
        ("7z", True),
        ("bz2", False),
        ("gzip", False),
        ("lz4", False),
        ("tar", True),
        ("xz", False),
        ("zip", True),
        ("zstd", False),
    ],  )
def        lowerCAmelCase_			(					__A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  )					->    Any:







      '''simple docstring'''


      UpperCAmelCase__								=  {
          "7z": (seven_zip_file, SevenZipExtractor),
          "bz2": (bza_file, BzipaExtractor),
          "gzip": (gz_file, GzipExtractor),
          "lz4": (lza_file, LzaExtractor),
          "tar": (tar_file, TarExtractor),
          "xz": (xz_file, XzExtractor),
          "zip": (zip_file, ZipExtractor),
          "zstd": (zstd_file, ZstdExtractor),
      }
      UpperCAmelCase__		,				UpperCAmelCase__								=  input_paths_and_base_extractors[compression_format]
      if input_path is None:
            UpperCAmelCase__								=  f"""for '{compression_format}' compression_format, """
            if compression_format == "7z":
                  reason += require_pyazr.kwargs["reason"]
            elif compression_format == "lz4":
                  reason += require_lza.kwargs["reason"]
            elif compression_format == "zstd":
                  reason += require_zstandard.kwargs["reason"]
            pytest.skip(__A							)
      assert base_extractor.is_extractable(__A							)
      UpperCAmelCase__								=  tmp_path / ("extracted" if is_archive else "extracted.txt")
      base_extractor.extract(__A,  __A							)
      if is_archive:
            assert output_path.is_dir()
            for file_path in output_path.iterdir():
                  assert file_path.name == text_file.name
                  UpperCAmelCase__								=  file_path.read_text(encoding="utf-8"							)
      else:
            UpperCAmelCase__								=  output_path.read_text(encoding="utf-8"							)
      UpperCAmelCase__								=  text_file.read_text(encoding="utf-8"							)
      assert extracted_file_content == expected_file_content




@pytest.mark.parametrize(
    "compression_format, is_archive",  [
        ("7z", True),
        ("bz2", False),
        ("gzip", False),
        ("lz4", False),
        ("tar", True),
        ("xz", False),
        ("zip", True),
        ("zstd", False),
    ],  )
def        lowerCAmelCase_			(					__A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  __A,  )					->    List[Any]:







      '''simple docstring'''


      UpperCAmelCase__								=  {
          "7z": seven_zip_file,
          "bz2": bza_file,
          "gzip": gz_file,
          "lz4": lza_file,
          "tar": tar_file,
          "xz": xz_file,
          "zip": zip_file,
          "zstd": zstd_file,
      }
      UpperCAmelCase__								=  input_paths[compression_format]
      if input_path is None:
            UpperCAmelCase__								=  f"""for '{compression_format}' compression_format, """
            if compression_format == "7z":
                  reason += require_pyazr.kwargs["reason"]
            elif compression_format == "lz4":
                  reason += require_lza.kwargs["reason"]
            elif compression_format == "zstd":
                  reason += require_zstandard.kwargs["reason"]
            pytest.skip(__A							)
      UpperCAmelCase__								=  Extractor.infer_extractor_format(__A							)
      assert extractor_format is not None
      UpperCAmelCase__								=  tmp_path / ("extracted" if is_archive else "extracted.txt")
      Extractor.extract(__A,  __A,  __A							)
      if is_archive:
            assert output_path.is_dir()
            for file_path in output_path.iterdir():
                  assert file_path.name == text_file.name
                  UpperCAmelCase__								=  file_path.read_text(encoding="utf-8"							)
      else:
            UpperCAmelCase__								=  output_path.read_text(encoding="utf-8"							)
      UpperCAmelCase__								=  text_file.read_text(encoding="utf-8"							)
      assert extracted_file_content == expected_file_content




@pytest.fixture
def        lowerCAmelCase_			(					__A,  __A							)					->    List[str]:







      '''simple docstring'''


      import tarfile

      UpperCAmelCase__								=  tmp_path / "data_dot_dot"
      directory.mkdir()
      UpperCAmelCase__								=  directory / "tar_file_with_dot_dot.tar"
      with tarfile.TarFile(__A,  "w"							) as f:
            f.add(__A,  arcname=os.path.join("..",  text_file.name							)							)
      return path




@pytest.fixture
def        lowerCAmelCase_			(					__A							)					->    Dict:







      '''simple docstring'''


      import tarfile

      UpperCAmelCase__								=  tmp_path / "data_sym_link"
      directory.mkdir()
      UpperCAmelCase__								=  directory / "tar_file_with_sym_link.tar"
      os.symlink("..",  directory / "subdir",  target_is_directory=__A							)
      with tarfile.TarFile(__A,  "w"							) as f:
            f.add(str(directory / "subdir"							),  arcname="subdir"							)  # str required by os.readlink on Windows and Python < 3.8
      return path




@pytest.mark.parametrize(
    "insecure_tar_file, error_log",  [("tar_file_with_dot_dot", "illegal path"), ("tar_file_with_sym_link", "Symlink")],  )
def        lowerCAmelCase_			(					__A,  __A,  __A,  __A,  __A,  __A							)					->    Dict:







      '''simple docstring'''


      UpperCAmelCase__								=  {
          "tar_file_with_dot_dot": tar_file_with_dot_dot,
          "tar_file_with_sym_link": tar_file_with_sym_link,
      }
      UpperCAmelCase__								=  insecure_tar_files[insecure_tar_file]
      UpperCAmelCase__								=  tmp_path / "extracted"
      TarExtractor.extract(__A,  __A							)
      assert caplog.text
      for record in caplog.records:
            assert record.levelname == "ERROR"
            assert error_log in record.msg







def        lowerCAmelCase_			(					__A							)					->    Any:







      '''simple docstring'''


      UpperCAmelCase__								=  tmpdir / "not_a_zip_file"
      # From: https://github.com/python/cpython/pull/5053
      UpperCAmelCase__								=  (
          B"\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00"
          B"\x00\x02\x08\x06\x00\x00\x00\x99\x81\xb6'\x00\x00\x00\x15I"
          B"DATx\x01\x01\n\x00\xf5\xff\x00PK\x05\x06\x00PK\x06\x06\x07"
          B"\xac\x01N\xc6|a\r\x00\x00\x00\x00IEND\xaeB`\x82"
      )
      with not_a_zip_file.open("wb"							) as f:
            f.write(__A							)
      assert zipfile.is_zipfile(str(__A							)							)  # is a false positive for `zipfile`
      assert not ZipExtractor.is_extractable(__A							)  # but we're right



