A few small fixes

gradio/__init__.py

@@ -13,13 +13,17 @@
     Carousel,
     Chatbot,
     Checkbox,
+    Checkboxgroup,
     CheckboxGroup,
+    DataFrame,
     Dataframe,
     Dropdown,
     File,
     Gallery,
+    Highlightedtext,
     HighlightedText,
     Image,
+    Keyvalues,
     KeyValues,
     Label,
     Markdown,
@@ -30,6 +34,7 @@
     Slider,
     StatusTracker,
     Textbox,
+    TimeSeries,
     Timeseries,
     Variable,
     Video,

gradio/blocks.py

@@ -73,8 +73,8 @@ def set_event_trigger(
         self,
         event_name: str,
         fn: Optional[Callable],
-        inputs: List[Component],
-        outputs: List[Component],
+        inputs: Optional[Component | List[Component]],
+        outputs: Optional[Component | List[Component]],
         preprocess: bool = True,
         postprocess: bool = True,
         js: Optional[str] = False,
@@ -97,6 +97,10 @@ def set_event_trigger(
         Returns: None
         """
         # Support for singular parameter
+        if inputs is None:
+            inputs = []
+        if outputs is None:
+            outputs = []
         if not isinstance(inputs, list):
             inputs = [inputs]
         if not isinstance(outputs, list):

gradio/components.py

@@ -2754,11 +2754,6 @@ def postprocess(self, y):
         return {"type": dtype, "plot": out_y}
 
 
-############################
-# Static Components
-############################
-
-
 class Markdown(Component):
     """
     Used for Markdown output. Expects a valid string that is rendered into Markdown.
@@ -2781,13 +2776,22 @@ def __init__(
         unindented_default_value = inspect.cleandoc(default_value)
         self.default_value = self.md.render(unindented_default_value)
 
+    def postprocess(self, y):
+        unindented_y = inspect.cleandoc(y)
+        return self.md.render(unindented_y)
+
     def get_template_context(self):
         return {
             "default_value": self.default_value,
             **Component.get_template_context(self),
         }
 
 
+############################
+# Static Components
+############################
+
+
 class Button(Clickable, Component):
     """
     Used to create a button, that can be assigned arbitrary click() events.
@@ -2942,3 +2946,10 @@ def get_component_instance(comp: str | dict | Component):
         raise ValueError(
             f"Component must provided as a `str` or `dict` or `Component` but is {comp}"
         )
+
+
+DataFrame = Dataframe
+Keyvalues = KeyValues
+Highlightedtext = HighlightedText
+Checkboxgroup = CheckboxGroup
+TimeSeries = Timeseries

gradio/interface.py

@@ -111,8 +111,8 @@ def from_pipeline(cls, pipeline: transformers.Pipeline, **kwargs) -> Interface:
     def __init__(
         self,
         fn: Callable | List[Callable],
-        inputs: Optional[str | Component | List[str | Component]] = None,
-        outputs: Optional[str | Component | List[str | Component]] = None,
+        inputs: Optional[str | Component | List[str | Component]],
+        outputs: Optional[str | Component | List[str | Component]],
         examples: Optional[List[Any] | List[List[Any]] | str] = None,
         cache_examples: Optional[bool] = None,
         examples_per_page: int = 10,
@@ -166,12 +166,12 @@ def __init__(
         )
 
         self.interface_type = self.InterfaceTypes.STANDARD
-        if inputs is None and outputs is None:
+        if (inputs is None or inputs == []) and (outputs is None or outputs == []):
             raise ValueError("Must provide at least one of `inputs` or `outputs`")
-        elif outputs is None:
+        elif outputs is None or outputs == []:
             outputs = []
             self.interface_type = self.InterfaceTypes.INPUT_ONLY
-        elif inputs is None:
+        elif inputs is None or inputs == []:
             inputs = []
             self.interface_type = self.InterfaceTypes.OUTPUT_ONLY