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| from flask import Flask, request, render_template_string | |
| import subprocess | |
| import sys | |
| import os | |
| app = Flask(__name__) | |
| HTML_TEMPLATE = """ | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Python Code Runner</title> | |
| <style> | |
| body { font-family: Arial, sans-serif; margin: 20px; } | |
| textarea { width: 100%; height: 300px; } | |
| pre { background: #f4f4f4; padding: 10px; border: 1px solid #ddd; } | |
| .error { color: red; } | |
| .warning { color: orange; } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Python Code Runner</h1> | |
| <form method="POST" action="/"> | |
| <textarea name="code" placeholder="Paste your Python code here">{{ code }}</textarea><br> | |
| <input type="submit" value="Run Code"> | |
| </form> | |
| {% if warning %} | |
| <h2 class="warning">Warning:</h2> | |
| <pre class="warning">{{ warning }}</pre> | |
| {% endif %} | |
| {% if output %} | |
| <h2>Output:</h2> | |
| <pre>{{ output }}</pre> | |
| {% endif %} | |
| {% if error %} | |
| <h2 class="error">Error:</h2> | |
| <pre class="error">{{ error }}</pre> | |
| {% endif %} | |
| </body> | |
| </html> | |
| """ | |
| def run_code(): | |
| code = "" | |
| output = "" | |
| error = "" | |
| warning = "" | |
| if request.method == "POST": | |
| code = request.form.get("code", "") | |
| # Check if code contains Toga imports | |
| if "import toga" in code or "from toga" in code: | |
| warning = ("Toga apps create GUI windows, which cannot be displayed in a web browser. " | |
| "The code will run, but the GUI will appear on the server (if a display is available). " | |
| "Consider downloading the code to run locally.") | |
| # Write the code to a temporary file | |
| temp_file = "temp_code.py" | |
| with open(temp_file, "w") as f: | |
| f.write(code) | |
| try: | |
| # Run the code in a subprocess with restricted environment | |
| result = subprocess.run( | |
| [sys.executable, temp_file], | |
| capture_output=True, | |
| text=True, | |
| timeout=5 # Short timeout for GUI apps to avoid hanging | |
| ) | |
| output = result.stdout | |
| error = result.stderr | |
| except subprocess.TimeoutExpired: | |
| error = "Execution timed out after 5 seconds." | |
| except Exception as e: | |
| error = f"An error occurred: {str(e)}" | |
| finally: | |
| # Clean up the temporary file | |
| if os.path.exists(temp_file): | |
| os.remove(temp_file) | |
| return render_template_string(HTML_TEMPLATE, code=code, output=output, error=error, warning=warning) | |
| if __name__ == "__main__": | |
| app.run(debug=True, host="0.0.0.0", port=7860) |