Remove obsolete utilities

sublime_lib/_util/collections.py

@@ -1,11 +1,11 @@
 from __future__ import annotations
-from collections.abc import Mapping, Sequence
-from typing import Callable, Iterable, TypeVar
+from collections.abc import Iterable
+from typing import Callable, TypeVar
 
 
 _V = TypeVar('_V')
 
-__all__ = ['projection', 'get_selector', 'isiterable', 'ismapping', 'is_sequence_not_str']
+__all__ = ['projection', 'get_selector']
 
 
 def projection(
@@ -47,25 +47,9 @@ def get_selector(selector: object, default_value: object = None) -> Callable:  #
         return selector
     elif isinstance(selector, str):
         return lambda this: this.get(selector, default_value)
-    elif isiterable(selector):
+    elif isinstance(selector, Iterable):
         return lambda this: projection(this, selector)  # type: ignore
     else:
         raise TypeError(
             'The selector should be a function, string, or iterable of strings.'
         )
-
-
-def isiterable(obj: object) -> bool:
-    try:
-        iter(obj)  # type: ignore
-        return True
-    except TypeError:
-        return False
-
-
-def ismapping(obj: object) -> bool:
-    return isinstance(obj, Mapping)
-
-
-def is_sequence_not_str(obj: object) -> bool:
-    return isinstance(obj, Sequence) and not isinstance(obj, str)

sublime_lib/show_selection_panel.py

@@ -4,7 +4,6 @@
 
 import sublime
 
-from ._util.collections import isiterable
 from ._util.named_value import NamedValue
 from .flags import QuickPanelOption
 
@@ -116,10 +115,10 @@ def on_done(index: int) -> None:
 
     on_highlight_callback = lambda index: on_highlight(items[index]) if on_highlight else None
 
-    if isiterable(flags) and not isinstance(flags, str):
-        flags = QuickPanelOption(*flags)
-    else:
+    if isinstance(flags, str):
         flags = QuickPanelOption(flags)
+    else:
+        flags = QuickPanelOption(*flags)
 
     # The signature in the API docs is wrong.
     # See https://github.com/SublimeTextIssues/Core/issues/2290