try just using CaseSenssitiveDict from requests to see if it works (#5744)

* try just using CaseSenssitiveDict from requests to see if it works

* put the dependency back in pyproject.toml and ignore typing on import

* news

* code now passing tests locally.  I still need to write tests for the new Class

* tests for CaseInsensitiveDict

news/remove-caseinsdict.rst

@@ -0,0 +1,24 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* replaced `case_insensitive_dictionary` dependency with local
+  `CaseInsensitiveDict` class
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>

pyproject.toml

@@ -15,9 +15,7 @@ authors = [{ name = "Anthony Scopatz" }, { email = "scopatz@gmail.com" }]
 maintainers = [{ name = "Xonsh Community" }, { email = "xonsh@gil.forsyth.dev" }]
 license = { text = "BSD 2-Clause License" }
 requires-python = ">=3.9"
-dependencies = [
-    "case-insensitive-dictionary; platform_system=='Windows'",
-]
+dependencies = []
 
 [tool.setuptools.dynamic]
 version = {attr = "xonsh.__version__"}

tests/test_commands_cache.py

@@ -8,6 +8,7 @@ import pytest
 
 from xonsh.commands_cache import (
     SHELL_PREDICTOR_PARSER,
+    CaseInsensitiveDict,
     CommandsCache,
     _Commands,
     executables_in,
@@ -306,3 +307,77 @@ def test_executables_in(xession):
             else:
                 result = set(executables_in(test_path))
     assert expected == result
+
+
+def test_caseinsdict_constructor():
+    actual = CaseInsensitiveDict({"key1": "val1", "Key2": "Val2"})
+    assert isinstance(actual, CaseInsensitiveDict)
+    assert actual["key1"] == "val1"
+    assert actual["Key2"] == "Val2"
+
+
+def test_caseinsdict_getitem():
+    actual = CaseInsensitiveDict({"Key1": "Val1"})
+    assert actual["Key1"] == "Val1"
+    assert actual["key1"] == "Val1"
+
+
+def test_caseinsdict_setitem():
+    actual = CaseInsensitiveDict({"Key1": "Val1"})
+    actual["Key1"] = "Val2"
+    assert actual["Key1"] == "Val2"
+    assert actual["key1"] == "Val2"
+    actual["key1"] = "Val3"
+    assert actual["Key1"] == "Val3"
+    assert actual["key1"] == "Val3"
+
+
+def test_caseinsdict_delitem():
+    actual = CaseInsensitiveDict({"Key1": "Val1", "Key2": "Val2"})
+    del actual["Key1"]
+    assert actual == CaseInsensitiveDict({"Key2": "Val2"})
+    del actual["key2"]
+    assert actual == CaseInsensitiveDict({})
+
+
+def test_caseinsdict_contains():
+    actual = CaseInsensitiveDict({"Key1": "Val1"})
+    assert actual.__contains__("Key1")
+    assert actual.__contains__("key1")
+    assert not actual.__contains__("key2")
+
+
+def test_caseinsdict_get():
+    actual = CaseInsensitiveDict({"Key1": "Val1"})
+    assert actual.get("Key1") == "Val1"
+    assert actual.get("key1") == "Val1"
+    assert actual.get("key2", "no val") == "no val"
+    assert actual.get("key1", "no val") == "Val1"
+
+
+def test_caseinsdict_update():
+    actual = CaseInsensitiveDict({"Key1": "Val1"})
+    actual.update({"Key2": "Val2"})
+    assert actual["key2"] == "Val2"
+
+
+def test_caseinsdict_keys():
+    actual = CaseInsensitiveDict({"Key1": "Val1"})
+    assert next(actual.keys()) == "Key1"
+
+
+def test_caseinsdict_items():
+    actual = CaseInsensitiveDict({"Key1": "Val1"})
+    assert next(actual.items()) == ("Key1", "Val1")
+
+
+def test_caseinsdict_repr():
+    actual = CaseInsensitiveDict({"Key1": "Val1"})
+    assert actual.__repr__() == "CaseInsensitiveDict({'Key1': 'Val1'})"
+
+
+def test_caseinsdict_copy():
+    initial = CaseInsensitiveDict({"Key1": "Val1"})
+    actual = initial.copy()
+    assert actual == initial
+    assert id(actual) != id(initial)

xonsh/commands_cache.py

@@ -23,8 +23,52 @@ from xonsh.procs.executables import (
     is_executable_in_windows,
 )
 
+
+class CaseInsensitiveDict(dict[tp.Any, tp.Any]):
+    def __init__(self, *args, **kwargs):
+        super().__init__()
+        self._store = {}
+        self.update(*args, **kwargs)
+
+    def __setitem__(self, key, value):
+        # Store the key in lowercase but preserve the original case for display
+        self._store[key.casefold()] = key
+        super().__setitem__(key.casefold(), value)
+
+    def __getitem__(self, key):
+        return super().__getitem__(key.casefold())
+
+    def __delitem__(self, key):
+        del self._store[key.casefold()]
+        super().__delitem__(key.casefold())
+
+    def __contains__(self, key):
+        return key.casefold() in self._store
+
+    def get(self, key, default=None):
+        return super().get(key.casefold(), default)
+
+    def update(self, *args, **kwargs):
+        for k, v in dict(*args, **kwargs).items():
+            self[k] = v
+
+    def keys(self):
+        # Return the original keys with their original casing
+        return (self._store[k] for k in self._store)
+
+    def items(self):
+        return ((self._store[k], self[k]) for k in self._store)
+
+    def __repr__(self):
+        return f"{self.__class__.__name__}({dict(self.items())})"
+
+    def copy(self):
+        return CaseInsensitiveDict(self.items())
+
+
+CacheDict: tp.Union[type[CaseInsensitiveDict], type[dict]]
 if ON_WINDOWS:
-    from case_insensitive_dict import CaseInsensitiveDict as CacheDict
+    CacheDict = CaseInsensitiveDict
 else:
     CacheDict = dict