TQDM, SimpleClass, IterableSimpleNamespace docstrings (#15795)

Signed-off-by: UltralyticsAssistant <web@ultralytics.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>

ultralytics/utils/__init__.py

@@ -116,18 +116,46 @@ os.environ["KINETO_LOG_LEVEL"] = "5"  # suppress verbose PyTorch profiler output
 
 class TQDM(tqdm_original):
     """
-    Custom Ultralytics tqdm class with different default arguments.
+    A custom TQDM progress bar class that extends the original tqdm functionality.
 
-    Args:
-        *args (list): Positional arguments passed to original tqdm.
-        **kwargs (any): Keyword arguments, with custom defaults applied.
+    This class modifies the behavior of the original tqdm progress bar based on global settings and provides
+    additional customization options.
+
+    Attributes:
+        disable (bool): Whether to disable the progress bar. Determined by the global VERBOSE setting and
+            any passed 'disable' argument.
+        bar_format (str): The format string for the progress bar. Uses the global TQDM_BAR_FORMAT if not
+            explicitly set.
+
+    Methods:
+        __init__: Initializes the TQDM object with custom settings.
+
+    Examples:
+        >>> from ultralytics.utils import TQDM
+        >>> for i in TQDM(range(100)):
+        ...     # Your processing code here
+        ...     pass
     """
 
     def __init__(self, *args, **kwargs):
         """
-        Initialize custom Ultralytics tqdm class with different default arguments.
+        Initializes a custom TQDM progress bar.
 
-        Note these can still be overridden when calling TQDM.
+        This class extends the original tqdm class to provide customized behavior for Ultralytics projects.
+
+        Args:
+            *args (Any): Variable length argument list to be passed to the original tqdm constructor.
+            **kwargs (Any): Arbitrary keyword arguments to be passed to the original tqdm constructor.
+
+        Notes:
+            - The progress bar is disabled if VERBOSE is False or if 'disable' is explicitly set to True in kwargs.
+            - The default bar format is set to TQDM_BAR_FORMAT unless overridden in kwargs.
+
+        Examples:
+            >>> from ultralytics.utils import TQDM
+            >>> for i in TQDM(range(100)):
+            ...     # Your code here
+            ...     pass
         """
         kwargs["disable"] = not VERBOSE or kwargs.get("disable", False)  # logical 'and' with default value if passed
         kwargs.setdefault("bar_format", TQDM_BAR_FORMAT)  # override default value if passed
@@ -135,7 +163,34 @@ class TQDM(tqdm_original):
 
 
 class SimpleClass:
-    """A base class providing string representation and attribute access functionality for Ultralytics objects."""
+    """
+    A simple base class for creating objects with string representations of their attributes.
+
+    This class provides a foundation for creating objects that can be easily printed or represented as strings,
+    showing all their non-callable attributes. It's useful for debugging and introspection of object states.
+
+    Methods:
+        __str__: Returns a human-readable string representation of the object.
+        __repr__: Returns a machine-readable string representation of the object.
+        __getattr__: Provides a custom attribute access error message with helpful information.
+
+    Examples:
+        >>> class MyClass(SimpleClass):
+        ...     def __init__(self):
+        ...         self.x = 10
+        ...         self.y = "hello"
+        >>> obj = MyClass()
+        >>> print(obj)
+        __main__.MyClass object with attributes:
+
+        x: 10
+        y: 'hello'
+
+    Notes:
+        - This class is designed to be subclassed. It provides a convenient way to inspect object attributes.
+        - The string representation includes the module and class name of the object.
+        - Callable attributes and attributes starting with an underscore are excluded from the string representation.
+    """
 
     def __str__(self):
         """Return a human-readable string representation of the object."""
@@ -162,7 +217,39 @@ class SimpleClass:
 
 
 class IterableSimpleNamespace(SimpleNamespace):
-    """Iterable SimpleNamespace subclass for key-value attribute iteration and custom error handling."""
+    """
+    An iterable SimpleNamespace class that provides enhanced functionality for attribute access and iteration.
+
+    This class extends the SimpleNamespace class with additional methods for iteration, string representation,
+    and attribute access. It is designed to be used as a convenient container for storing and accessing
+    configuration parameters.
+
+    Methods:
+        __iter__: Returns an iterator of key-value pairs from the namespace's attributes.
+        __str__: Returns a human-readable string representation of the object.
+        __getattr__: Provides a custom attribute access error message with helpful information.
+        get: Retrieves the value of a specified key, or a default value if the key doesn't exist.
+
+    Examples:
+        >>> cfg = IterableSimpleNamespace(a=1, b=2, c=3)
+        >>> for k, v in cfg:
+        ...     print(f"{k}: {v}")
+        a: 1
+        b: 2
+        c: 3
+        >>> print(cfg)
+        a=1
+        b=2
+        c=3
+        >>> cfg.get("b")
+        2
+        >>> cfg.get("d", "default")
+        'default'
+
+    Notes:
+        This class is particularly useful for storing configuration parameters in a more accessible
+        and iterable format compared to a standard dictionary.
+    """
 
     def __iter__(self):
         """Return an iterator of key-value pairs from the namespace's attributes."""
@@ -235,7 +322,28 @@ def plt_settings(rcparams=None, backend="Agg"):
 
 
 def set_logging(name="LOGGING_NAME", verbose=True):
-    """Sets up logging with UTF-8 encoding and configurable verbosity for Ultralytics YOLO."""
+    """
+    Sets up logging with UTF-8 encoding and configurable verbosity.
+
+    This function configures logging for the Ultralytics library, setting the appropriate logging level and
+    formatter based on the verbosity flag and the current process rank. It handles special cases for Windows
+    environments where UTF-8 encoding might not be the default.
+
+    Args:
+        name (str): Name of the logger. Defaults to "LOGGING_NAME".
+        verbose (bool): Flag to set logging level to INFO if True, ERROR otherwise. Defaults to True.
+
+    Examples:
+        >>> set_logging(name="ultralytics", verbose=True)
+        >>> logger = logging.getLogger("ultralytics")
+        >>> logger.info("This is an info message")
+
+    Notes:
+        - On Windows, this function attempts to reconfigure stdout to use UTF-8 encoding if possible.
+        - If reconfiguration is not possible, it falls back to a custom formatter that handles non-UTF-8 environments.
+        - The function sets up a StreamHandler with the appropriate formatter and level.
+        - The logger's propagate flag is set to False to prevent duplicate logging in parent loggers.
+    """
     level = logging.INFO if verbose and RANK in {-1, 0} else logging.ERROR  # rank in world for Multi-GPU trainings
 
     # Configure the console (stdout) encoding to UTF-8, with checks for compatibility