Create app.py

app.py

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+import gradio as gr
+
+# Conversion logic
+def convert_units(value, from_unit, to_unit, category):
+    conversions = {
+        "Length": {
+            "Meter": 1,
+            "Kilometer": 1000,
+            "Centimeter": 0.01,
+            "Millimeter": 0.001,
+            "Mile": 1609.34,
+            "Yard": 0.9144,
+            "Foot": 0.3048,
+            "Inch": 0.0254,
+        },
+        "Weight": {
+            "Kilogram": 1,
+            "Gram": 0.001,
+            "Milligram": 0.000001,
+            "Pound": 0.453592,
+            "Ounce": 0.0283495,
+        },
+        "Temperature": None  # handled separately
+    }
+
+    if category == "Temperature":
+        if from_unit == to_unit:
+            return value
+        elif from_unit == "Celsius" and to_unit == "Fahrenheit":
+            return (value * 9/5) + 32
+        elif from_unit == "Fahrenheit" and to_unit == "Celsius":
+            return (value - 32) * 5/9
+        elif from_unit == "Celsius" and to_unit == "Kelvin":
+            return value + 273.15
+        elif from_unit == "Kelvin" and to_unit == "Celsius":
+            return value - 273.15
+        elif from_unit == "Fahrenheit" and to_unit == "Kelvin":
+            return (value - 32) * 5/9 + 273.15
+        elif from_unit == "Kelvin" and to_unit == "Fahrenheit":
+            return (value - 273.15) * 9/5 + 32
+
+    else:
+        base_value = value * conversions[category][from_unit]
+        result = base_value / conversions[category][to_unit]
+        return result
+
+
+def update_units(category):
+    if category == "Length":
+        units = ["Meter", "Kilometer", "Centimeter", "Millimeter", "Mile", "Yard", "Foot", "Inch"]
+    elif category == "Weight":
+        units = ["Kilogram", "Gram", "Milligram", "Pound", "Ounce"]
+    elif category == "Temperature":
+        units = ["Celsius", "Fahrenheit", "Kelvin"]
+    return gr.update(choices=units, value=units[0]), gr.update(choices=units, value=units[1])
+
+
+with gr.Blocks(theme=gr.themes.Soft()) as demo:
+    gr.Markdown("## 🌡️ Universal Unit Converter\nConvert between different unit categories easily!")
+
+    with gr.Row():
+        category = gr.Dropdown(["Length", "Weight", "Temperature"], label="Select Category", value="Length")
+
+    with gr.Row():
+        value = gr.Number(label="Enter Value", value=1)
+    
+    with gr.Row():
+        from_unit = gr.Dropdown([], label="From Unit")
+        to_unit = gr.Dropdown([], label="To Unit")
+
+    category.change(fn=update_units, inputs=category, outputs=[from_unit, to_unit])
+
+    convert_btn = gr.Button("Convert")
+    output = gr.Textbox(label="Converted Value")
+
+    convert_btn.click(fn=convert_units, 
+                      inputs=[value, from_unit, to_unit, category], 
+                      outputs=output)
+
+demo.launch()