refactor KmlDateTime class and add get_all_attrs utility function

fastkml/times.py

@@ -45,7 +45,7 @@
 
 # regular expression to parse a gYearMonth string
 # year and month may be separated by an optional dash
-# year is always 4 digits, month is always 2 digits
+# year is always 4 digits, month, day is always 2 digits
 year_month_day = re.compile(
     r"^(?P<year>\d{4})(?:-)?(?P<month>\d{2})?(?:-)?(?P<day>\d{2})?$",
 )
@@ -205,10 +205,8 @@ def parse(cls, datestr: str) -> Optional["KmlDateTime"]:
                 resolution = DateTimeResolution.year_month
             if year_month_day_match.group("month") is None:
                 resolution = DateTimeResolution.year
-        elif len(datestr) > 10:  # noqa: PLR2004
-            dt = arrow.get(datestr).datetime
-            resolution = DateTimeResolution.datetime
-        return cls(dt, resolution) if dt else None
+            return cls(dt, resolution)
+        return cls(arrow.get(datestr).datetime, DateTimeResolution.datetime)
 
     @classmethod
     def get_ns_id(cls) -> str:

fastkml/utils.py

@@ -30,6 +30,32 @@ def has_attribute_values(obj: object, **kwargs: Any) -> bool:
         return False
 
 
+def get_all_attrs(obj: object) -> Generator[object, None, None]:
+    """
+    Get all attributes of an object.
+
+    Args:
+    ----
+        obj: The object to get attributes from.
+
+    Returns:
+    -------
+        An iterable of all attributes of the object or, if the attribute itself is
+            iterable, iterate over the attribute values.
+
+    """
+    try:
+        attrs = (attr for attr in obj.__dict__ if not attr.startswith("_"))
+    except AttributeError:
+        return
+    for attr_name in attrs:
+        attr = getattr(obj, attr_name)
+        try:
+            yield from attr
+        except TypeError:
+            yield attr
+
+
 def find_all(
     obj: object,
     *,
@@ -55,17 +81,9 @@ def find_all(
         **kwargs,
     ):
         yield obj
-    try:
-        attrs = (attr for attr in obj.__dict__ if not attr.startswith("_"))
-    except AttributeError:
-        return
-    for attr_name in attrs:
-        attr = getattr(obj, attr_name)
-        try:
-            for item in attr:
-                yield from find_all(item, of_type=of_type, **kwargs)
-        except TypeError:
-            yield from find_all(attr, of_type=of_type, **kwargs)
+
+    for attr in get_all_attrs(obj):
+        yield from find_all(attr, of_type=of_type, **kwargs)
 
 
 def find(

tox.ini

@@ -9,7 +9,6 @@ per-file-ignores =
     examples/*.py: DALL
     fastkml/gx.py: LIT002
     fastkml/views.py: LIT002
-    fastkml/utils.py: CCR001
     fastkml/registry.py: E704
     docs/conf.py: E402
 enable-extensions=G