Fixed a type bug where the validation was "binary" (#2727)

* Fixed a type bug where the validation was "binary"

In line 2113 the type was validated as either file or binary:
```python
        valid_types = ["file", "binary"]
        if type not in valid_types:
            raise ValueError(
                f"Invalid value for parameter `type`: {type}. Please choose from one of: {valid_types}"
            )
```

However line 2183 preprocess single file wanted either "file" or "bytes"
```python
            elif self.type == "bytes":
```

I have arbitrarily picked binary as the one to match, but now they are both consistent.

* added test, changelog, formatting

Co-authored-by: Abubakar Abid <abubakar@huggingface.co>

CHANGELOG.md

@@ -5,6 +5,7 @@ No changes to highlight.
 
 ## Bug Fixes:
 * Fixed bug where requests timeout is missing from utils.version_check() by [@yujiehecs](https://github.com/yujiehecs) in [PR 2729](https://github.com/gradio-app/gradio/pull/2729)
+* Fixed bug where so that the `File` component can properly preprocess files to "binary" byte-string format by [CoffeeVampir3](https://github.com/CoffeeVampir3) in [PR 2727](https://github.com/gradio-app/gradio/pull/2727)
 
 ## Documentation Changes:
 No changes to highlight.

gradio/components.py

@@ -2110,11 +2110,19 @@ class File(Changeable, Clearable, Uploadable, IOComponent, FileSerializable):
         self.temp_dir = tempfile.mkdtemp()
         self.file_count = file_count
         self.file_types = file_types
-        valid_types = ["file", "binary"]
+        valid_types = [
+            "file",
+            "binary",
+            "bytes",
+        ]  # "bytes" is included for backwards compatibility
         if type not in valid_types:
             raise ValueError(
                 f"Invalid value for parameter `type`: {type}. Please choose from one of: {valid_types}"
             )
+        if type == "bytes":
+            warnings.warn(
+                "The `bytes` type is deprecated and may not work as expected. Please use `binary` instead."
+            )
         self.type = type
         self.test_input = None
         IOComponent.__init__(
@@ -2180,7 +2188,9 @@ class File(Changeable, Clearable, Uploadable, IOComponent, FileSerializable):
                     )
                     file.orig_name = file_name
                 return file
-            elif self.type == "bytes":
+            elif (
+                self.type == "binary" or self.type == "bytes"
+            ):  # "bytes" is included for backwards compatibility
                 if is_file:
                     with open(file_name, "rb") as file_data:
                         return file_data.read()

test/test_components.py

@@ -842,6 +842,10 @@ class TestFile:
         x_file["is_example"] = True
         assert file_input.preprocess(x_file) is not None
 
+        file_input = gr.File(type="binary")
+        output = file_input.preprocess(x_file)
+        assert type(output) == bytes
+
     def test_in_interface_as_input(self):
         """
         Interface, process
@@ -854,8 +858,7 @@ class TestFile:
         iface = gr.Interface(get_size_of_file, "file", "number")
         assert iface(x_file) == 10558
 
-    @pytest.mark.asyncio
-    async def test_as_component_as_output(self):
+    def test_as_component_as_output(self):
         """
         Interface, process
         """