1  import sys
   2  from typing import Any, Iterable, Iterator, List, Optional, Protocol, Sequence, Text, Type, Union
   3  
   4  QUOTE_ALL: int
   5  QUOTE_MINIMAL: int
   6  QUOTE_NONE: int
   7  QUOTE_NONNUMERIC: int
   8  
   9  class Error(Exception): ...
  10  
  11  class Dialect:
  12      delimiter: str
  13      quotechar: Optional[str]
  14      escapechar: Optional[str]
  15      doublequote: bool
  16      skipinitialspace: bool
  17      lineterminator: str
  18      quoting: int
  19      strict: int
  20      def __init__(self) -> None: ...
  21  
  22  _DialectLike = Union[str, Dialect, Type[Dialect]]
  23  
  24  class _reader(Iterator[List[str]]):
  25      dialect: Dialect
  26      line_num: int
  27      if sys.version_info >= (3, 0):
  28          def __next__(self) -> List[str]: ...
  29      else:
  30          def next(self) -> List[str]: ...
  31  
  32  class _writer:
  33      dialect: Dialect
  34  
  35      if sys.version_info >= (3, 5):
  36          def writerow(self, row: Iterable[Any]) -> Any: ...
  37          def writerows(self, rows: Iterable[Iterable[Any]]) -> None: ...
  38      else:
  39          def writerow(self, row: Sequence[Any]) -> Any: ...
  40          def writerows(self, rows: Iterable[Sequence[Any]]) -> None: ...
  41  
  42  class _Writer(Protocol):
  43      def write(self, s: str) -> Any: ...
  44  
  45  def writer(csvfile: _Writer, dialect: _DialectLike = ..., **fmtparams: Any) -> _writer: ...
  46  def reader(csvfile: Iterable[Text], dialect: _DialectLike = ..., **fmtparams: Any) -> _reader: ...
  47  def register_dialect(name: str, dialect: Any = ..., **fmtparams: Any) -> None: ...
  48  def unregister_dialect(name: str) -> None: ...
  49  def get_dialect(name: str) -> Dialect: ...
  50  def list_dialects() -> List[str]: ...
  51  def field_size_limit(new_limit: int = ...) -> int: ...
  52