upload files

.gitignore

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+# VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+# Local History for Visual Studio Code
+.history/
+
+# Common credential files
+**/credentials.json
+**/client_secrets.json
+**/client_secret.json
+*creds*
+*.dat
+*password*
+*.httr-oauth*
+
+# Private Node Modules
+node_modules/
+creds.js
+
+# Private Files
+*.json
+*.csv
+*.csv.gz
+*.tsv
+*.tsv.gz
+*.xlsx
+
+
+# Mac/OSX
+.DS_Store
+
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/

README.md

@@ -1,6 +1,6 @@
 ---
 title: Calculator Api
-emoji: 😻
+emoji: 𝞹📈🧠📚
 colorFrom: indigo
 colorTo: indigo
 sdk: gradio

api.py

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+from fastapi import FastAPI
+from pydantic import BaseModel
+import uvicorn
+
+app = FastAPI()
+
+class Inputs(BaseModel):
+    expression: str 
+
+def calculate(expression):
+    try:
+        result = eval(expression)
+        return result
+    except Exception as e:
+        raise Exception("ERROR")
+
+@app.post("/calculate")
+async def calculate_endpoint(request: Inputs):
+    try:
+        result = calculate(request.expression) 
+        return {'result': result}
+    except Exception as e:
+        return {"error": str(e)}
+
+if __name__ == "__main__":
+    uvicorn.run(app, host="0.0.0.0", port=8000)

requirements.txt

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+fastapi==0.111.1
+gradio==4.39.0
+pydantic==2.8.2
+requests==2.32.3
+uvicorn==0.30.3

ui.py

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+import gradio as gr
+import requests
+import re
+
+def calculate(expression):
+    response = requests.post("http://localhost:8000/calculate", json={"expression": expression})
+    result = response.json()
+    if "error" in result:
+        return result["error"]
+    return result["result"]
+
+def clear_display():
+    return ""
+
+def append_symbol(current_expression, symbol):
+    return current_expression + symbol
+
+def validate_expression(expression):
+    if expression == "ERROR":
+        return expression
+    valid_expression = re.sub(r'[^0-9+\-*/.]', '', expression)
+    return valid_expression
+
+with gr.Blocks() as demo:
+    display = gr.Textbox(max_lines=1, value="", label="Expression", interactive=True)
+    display.change(fn=validate_expression, inputs=display, outputs=display)
+
+    with gr.Row():
+        gr.Button("AC", variant="primary", scale=3, elem_classes=["btn-AC"]).click(clear_display, outputs=display)
+        gr.Button("+", variant="primary", scale=1, elem_classes=["btn"]).click(lambda x: append_symbol(x, "+"), inputs=display, outputs=display)
+    
+    with gr.Row():
+        for symbol in ["7", "8", "9"]:
+            gr.Button(symbol, elem_classes=["btn"]).click(lambda x, s=symbol: append_symbol(x, s), inputs=display, outputs=display)
+        gr.Button("-", variant="primary", elem_classes=["btn"]).click(lambda x: append_symbol(x, "-"), inputs=display, outputs=display)
+            
+    with gr.Row():
+        for symbol in ["4", "5", "6"]:
+            gr.Button(symbol, elem_classes=["btn"]).click(lambda x, s=symbol: append_symbol(x, s), inputs=display, outputs=display)
+        gr.Button("x", variant="primary", elem_classes=["btn"]).click(lambda x: append_symbol(x, "*"), inputs=display, outputs=display)
+            
+    with gr.Row():
+        for symbol in ["1", "2", "3"]:
+            gr.Button(symbol, elem_classes=["btn"]).click(lambda x, s=symbol: append_symbol(x, s), inputs=display, outputs=display)
+        gr.Button("/", variant="primary", elem_classes=["btn"]).click(lambda x: append_symbol(x, "/"), inputs=display, outputs=display)
+            
+    with gr.Row():
+        for symbol in ["0", "."]:
+            gr.Button(symbol, elem_classes=["btn"]).click(lambda x, s=symbol: append_symbol(x, s), inputs=display, outputs=display)
+        gr.Button("=", variant="primary", scale=2, elem_classes=["btn-equalto"]).click(calculate, inputs=display, outputs=display)
+    display.submit(calculate, inputs=display, outputs=display)
+        
+demo.css = '''
+body, .gradio-container {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100vh;
+}
+.gradio-container {
+    flex-direction: column;
+    width: auto;
+}
+.btn {
+    font-size: 1.5rem;
+    min-width: 5rem;
+    max-width: 6rem;
+}
+.btn-AC{
+    font-size: 1.5rem;
+    min-width: 5rem;
+    max-width: 20rem;
+}
+.btn-equalto{
+    font-size: 1.5rem;
+    min-width: 5rem;
+    max-width: 13rem;
+}
+'''
+
+demo.launch()