fix: resolve ruff and ty lint errors for CI

- Add noqa comment for E402 on intentional late import in dicttoxml_fast.py
- Fix import sorting in test_rust_dicttoxml.py
- Add type ignore comments for optional Rust extension imports

Author: vinitkumar

json2xml/dicttoxml_fast.py

@@ -24,9 +24,9 @@
 _rust_dicttoxml = None
 
 try:
-    from json2xml_rs import dicttoxml as _rust_dicttoxml
-    from json2xml_rs import escape_xml_py as rust_escape_xml
-    from json2xml_rs import wrap_cdata_py as rust_wrap_cdata
+    from json2xml_rs import dicttoxml as _rust_dicttoxml  # type: ignore[import-not-found]
+    from json2xml_rs import escape_xml_py as rust_escape_xml  # type: ignore[import-not-found]
+    from json2xml_rs import wrap_cdata_py as rust_wrap_cdata  # type: ignore[import-not-found]
     _USE_RUST = True
     LOG.debug("Using Rust backend for dicttoxml")
 except ImportError:
@@ -35,7 +35,7 @@
     rust_wrap_cdata = None
 
 # Import the pure Python implementation as fallback
-from json2xml import dicttoxml as _py_dicttoxml
+from json2xml import dicttoxml as _py_dicttoxml  # noqa: E402
 
 
 def is_rust_available() -> bool:

tests/test_rust_dicttoxml.py

@@ -10,15 +10,20 @@
 
 # Check if Rust extension is available
 try:
-    from json2xml_rs import dicttoxml as rust_dicttoxml
-    from json2xml_rs import escape_xml_py, wrap_cdata_py
+    from json2xml_rs import dicttoxml as rust_dicttoxml  # type: ignore[import-not-found]
+    from json2xml_rs import escape_xml_py, wrap_cdata_py  # type: ignore[import-not-found]
     RUST_AVAILABLE = True
 except ImportError:
     RUST_AVAILABLE = False
 
 from json2xml import dicttoxml as py_dicttoxml
-from json2xml.dicttoxml_fast import dicttoxml as fast_dicttoxml, is_rust_available, get_backend
-
+from json2xml.dicttoxml_fast import (
+    dicttoxml as fast_dicttoxml,
+)
+from json2xml.dicttoxml_fast import (
+    get_backend,
+    is_rust_available,
+)
 
 # Skip all tests if Rust is not available
 pytestmark = pytest.mark.skipif(not RUST_AVAILABLE, reason="Rust extension not installed")