Merge pull request #148 from static-frame/146/pyi

`pyi` improvements

Author: flexatone

src/__init__.pyi

@@ -1,11 +1,31 @@
 import typing as tp
+import datetime
 
 import numpy as np  # type: ignore
 
 _T = tp.TypeVar('_T')
 
 __version__: str
 
+_TLabel = tp.Union[
+        tp.Hashable,
+        int,
+        bool,
+        np.bool_,
+        np.integer,
+        float,
+        complex,
+        np.inexact,
+        str,
+        bytes,
+        None,
+        np.datetime64,
+        np.timedelta64,
+        datetime.date,
+        datetime.datetime,
+        tp.Tuple['_TLabel'],
+]
+
 class ErrorInitTypeBlocks(RuntimeError):
     def __init__(self, *args: tp.Any, **kwargs: tp.Any) -> None: ...
     def with_traceback(self, tb: Exception) -> Exception: ...
@@ -103,16 +123,16 @@ def count_iteration(__iterable: tp.Iterable) -> int: ...
 
 def immutable_filter(__array: np.ndarray) -> np.ndarray: ...
 def mloc(__array: np.ndarray) -> int: ...
-def name_filter(__name: tp.Hashable) -> tp.Hashable: ...
+def name_filter(__name: _TLabel) -> _TLabel: ...
 def shape_filter(__array: np.ndarray) -> np.ndarray: ...
 def column_2d_filter(__array: np.ndarray) -> np.ndarray: ...
 def column_1d_filter(__array: np.ndarray) -> np.ndarray: ...
 def row_1d_filter(__array: np.ndarray) -> np.ndarray: ...
-def array_deepcopy(__array: np.ndarray, memo: tp.Dict[int, tp.Any]) -> np.ndarray: ...
+def array_deepcopy(__array: np.ndarray, memo: tp.Optional[tp.Dict[int, tp.Any]]) -> np.ndarray: ...
 def resolve_dtype(__d1: np.dtype, __d2: np.dtype) -> np.dtype: ...
 def resolve_dtype_iter(__dtypes: tp.Iterable[np.dtype]) -> np.dtype: ...
 def isna_element(__value: tp.Any, include_none: bool = True) -> bool: ...
-def dtype_from_element(__value: tp.Optional[tp.Hashable]) -> np.dtype: ...
+def dtype_from_element(__value: tp.Optional[_TLabel]) -> np.dtype: ...
 def get_new_indexers_and_screen(indexers: np.ndarray, positions: np.ndarray) -> tp.Tuple[np.ndarray, np.ndarray]: ...
 
 def first_true_1d(__array: np.ndarray, *, forward: bool) -> int: ...