Re-organize directory structure (#4971)

See discussion in #2491

Co-authored-by: Ivan Levkivskyi <ilevkivskyi@dropbox.com>

stdlib/json/__init__.pyi

@@ -0,0 +1,57 @@
+from _typeshed import SupportsRead
+from typing import IO, Any, Callable, Dict, List, Optional, Tuple, Type, Union
+
+from .decoder import JSONDecodeError as JSONDecodeError, JSONDecoder as JSONDecoder
+from .encoder import JSONEncoder as JSONEncoder
+
+def dumps(
+    obj: Any,
+    *,
+    skipkeys: bool = ...,
+    ensure_ascii: bool = ...,
+    check_circular: bool = ...,
+    allow_nan: bool = ...,
+    cls: Optional[Type[JSONEncoder]] = ...,
+    indent: Union[None, int, str] = ...,
+    separators: Optional[Tuple[str, str]] = ...,
+    default: Optional[Callable[[Any], Any]] = ...,
+    sort_keys: bool = ...,
+    **kwds: Any,
+) -> str: ...
+def dump(
+    obj: Any,
+    fp: IO[str],
+    *,
+    skipkeys: bool = ...,
+    ensure_ascii: bool = ...,
+    check_circular: bool = ...,
+    allow_nan: bool = ...,
+    cls: Optional[Type[JSONEncoder]] = ...,
+    indent: Union[None, int, str] = ...,
+    separators: Optional[Tuple[str, str]] = ...,
+    default: Optional[Callable[[Any], Any]] = ...,
+    sort_keys: bool = ...,
+    **kwds: Any,
+) -> None: ...
+def loads(
+    s: Union[str, bytes],
+    *,
+    cls: Optional[Type[JSONDecoder]] = ...,
+    object_hook: Optional[Callable[[Dict[Any, Any]], Any]] = ...,
+    parse_float: Optional[Callable[[str], Any]] = ...,
+    parse_int: Optional[Callable[[str], Any]] = ...,
+    parse_constant: Optional[Callable[[str], Any]] = ...,
+    object_pairs_hook: Optional[Callable[[List[Tuple[Any, Any]]], Any]] = ...,
+    **kwds: Any,
+) -> Any: ...
+def load(
+    fp: SupportsRead[Union[str, bytes]],
+    *,
+    cls: Optional[Type[JSONDecoder]] = ...,
+    object_hook: Optional[Callable[[Dict[Any, Any]], Any]] = ...,
+    parse_float: Optional[Callable[[str], Any]] = ...,
+    parse_int: Optional[Callable[[str], Any]] = ...,
+    parse_constant: Optional[Callable[[str], Any]] = ...,
+    object_pairs_hook: Optional[Callable[[List[Tuple[Any, Any]]], Any]] = ...,
+    **kwds: Any,
+) -> Any: ...

stdlib/json/decoder.pyi

@@ -0,0 +1,29 @@
+from typing import Any, Callable, Dict, List, Optional, Tuple
+
+class JSONDecodeError(ValueError):
+    msg: str
+    doc: str
+    pos: int
+    lineno: int
+    colno: int
+    def __init__(self, msg: str, doc: str, pos: int) -> None: ...
+
+class JSONDecoder:
+    object_hook: Callable[[Dict[str, Any]], Any]
+    parse_float: Callable[[str], Any]
+    parse_int: Callable[[str], Any]
+    parse_constant: Callable[[str], Any] = ...
+    strict: bool
+    object_pairs_hook: Callable[[List[Tuple[str, Any]]], Any]
+    def __init__(
+        self,
+        *,
+        object_hook: Optional[Callable[[Dict[str, Any]], Any]] = ...,
+        parse_float: Optional[Callable[[str], Any]] = ...,
+        parse_int: Optional[Callable[[str], Any]] = ...,
+        parse_constant: Optional[Callable[[str], Any]] = ...,
+        strict: bool = ...,
+        object_pairs_hook: Optional[Callable[[List[Tuple[str, Any]]], Any]] = ...,
+    ) -> None: ...
+    def decode(self, s: str, _w: Callable[..., Any] = ...) -> Any: ...  # _w is undocumented
+    def raw_decode(self, s: str, idx: int = ...) -> Tuple[Any, int]: ...

stdlib/json/encoder.pyi

@@ -0,0 +1,27 @@
+from typing import Any, Callable, Iterator, Optional, Tuple
+
+class JSONEncoder:
+    item_separator: str
+    key_separator: str
+
+    skipkeys: bool
+    ensure_ascii: bool
+    check_circular: bool
+    allow_nan: bool
+    sort_keys: bool
+    indent: int
+    def __init__(
+        self,
+        *,
+        skipkeys: bool = ...,
+        ensure_ascii: bool = ...,
+        check_circular: bool = ...,
+        allow_nan: bool = ...,
+        sort_keys: bool = ...,
+        indent: Optional[int] = ...,
+        separators: Optional[Tuple[str, str]] = ...,
+        default: Optional[Callable[..., Any]] = ...,
+    ) -> None: ...
+    def default(self, o: Any) -> Any: ...
+    def encode(self, o: Any) -> str: ...
+    def iterencode(self, o: Any, _one_shot: bool = ...) -> Iterator[str]: ...

stdlib/json/tool.pyi

@@ -0,0 +1 @@
+def main() -> None: ...