refactor: simplify logging setup by removing file handlers and using console output only

.gitignore

@@ -11,4 +11,5 @@ response.txt
 venv
 temp_charts
 .idea
-temp_data_files
+temp_data_files
+logs/

Dockerfile

@@ -36,7 +36,6 @@ COPY --from=builder /usr/local/bin/ /usr/local/bin/
 # Copy application source code
 COPY bot.py .
 COPY src/ ./src/
-COPY logs/ ./logs/
 
 # Run application
 CMD ["python3", "bot.py"]

bot.py

@@ -54,30 +54,10 @@ def setup_logging():
         console_handler = logging.StreamHandler(sys.stdout)
         console_handler.setFormatter(log_formatter)
         
-        # File handler with rotation (keep 5 files of 5MB each)
-        try:
-            from logging.handlers import RotatingFileHandler
-            os.makedirs('logs', exist_ok=True)
-            file_handler = RotatingFileHandler(
-                'logs/discord_bot.log', 
-                maxBytes=5*1024*1024,  # 5MB
-                backupCount=5
-            )
-            file_handler.setFormatter(log_formatter)
-            
-            # Configure root logger
-            root_logger = logging.getLogger()
-            root_logger.setLevel(logging.INFO)
-            root_logger.addHandler(console_handler)
-            root_logger.addHandler(file_handler)
-        except Exception as e:
-            # Fall back to basic logging if file logging fails
-            logging.basicConfig(
-                level=logging.INFO, 
-                format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
-                stream=sys.stdout
-            )
-            logging.warning(f"Could not set up file logging: {str(e)}")
+        # Configure root logger with console only
+        root_logger = logging.getLogger()
+        root_logger.setLevel(logging.INFO)
+        root_logger.addHandler(console_handler)
 
     # Set up webhook logging if enabled
     if ENABLE_WEBHOOK_LOGGING and LOGGING_WEBHOOK_URL:

src/utils/code_interpreter.py

@@ -8,7 +8,6 @@ import subprocess
 import tempfile
 import time
 import uuid
-from logging.handlers import RotatingFileHandler
 import traceback
 import contextlib
 from typing import Dict, Any, Optional, List
@@ -17,15 +16,13 @@ from typing import Dict, Any, Optional, List
 from .python_executor import execute_python_code
 from .data_analyzer import analyze_data_file
 
-# Configure logging
-log_file = 'logs/code_interpreter.log'
-os.makedirs(os.path.dirname(log_file), exist_ok=True)
+# Configure logging - console only
 formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
-file_handler = RotatingFileHandler(log_file, maxBytes=10*1024*1024, backupCount=5)
-file_handler.setFormatter(formatter)
+console_handler = logging.StreamHandler()
+console_handler.setFormatter(formatter)
 logger = logging.getLogger('code_interpreter')
 logger.setLevel(logging.INFO)
-logger.addHandler(file_handler)
+logger.addHandler(console_handler)
 
 async def execute_code(args: Dict[str, Any]) -> Dict[str, Any]:
     """

src/utils/code_utils.py

@@ -13,9 +13,8 @@ DATA_FILES_DIR = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(os
 # Create the directory if it doesn't exist
 os.makedirs(DATA_FILES_DIR, exist_ok=True)
 
-# Configure logging
+# Configure logging - console only
 logging.basicConfig(
-    filename='logs/code_execution.log',
     level=logging.INFO,
     format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
 )
@@ -174,18 +173,15 @@ def init_data_directory() -> None:
     # Ensure data directory exists
     os.makedirs(DATA_FILES_DIR, exist_ok=True)
     
-    # Set up logging specifically for data operations
-    data_log_file = 'logs/code_execution.log'
-    os.makedirs(os.path.dirname(data_log_file), exist_ok=True)
-    
-    file_handler = logging.FileHandler(data_log_file)
-    file_handler.setFormatter(
+    # Set up logging specifically for data operations - console only
+    console_handler = logging.StreamHandler()
+    console_handler.setFormatter(
         logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
     )
     
     logger = logging.getLogger('code_utils')
     logger.setLevel(logging.INFO)
-    logger.addHandler(file_handler)
+    logger.addHandler(console_handler)
     
     # Log directory initialization
     logger.info(f"Initialized data directory at {DATA_FILES_DIR}")

src/utils/data_analyzer.py

@@ -10,7 +10,6 @@ import uuid
 import time
 from typing import Dict, Any, Optional, List, Tuple
 from datetime import datetime
-from logging.handlers import RotatingFileHandler
 
 # Import data analysis libraries
 try:
@@ -31,14 +30,12 @@ except ImportError as e:
 from .code_utils import DATA_FILES_DIR, format_output_path, clean_old_files
 
 # Configure logging
-log_file = 'logs/data_analyzer.log'
-os.makedirs(os.path.dirname(log_file), exist_ok=True)
 formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
-file_handler = RotatingFileHandler(log_file, maxBytes=10*1024*1024, backupCount=5)
-file_handler.setFormatter(formatter)
+console_handler = logging.StreamHandler()
+console_handler.setFormatter(formatter)
 logger = logging.getLogger('data_analyzer')
 logger.setLevel(logging.INFO)
-logger.addHandler(file_handler)
+logger.addHandler(console_handler)
 
 def _is_valid_python_code(code_string: str) -> bool:
     """

src/utils/python_executor.py

@@ -1,162 +1,338 @@
+"""
+Secure Python code execution with complete isolation and package management.
+This module provides a completely secure isolated execution environment.
+"""
+
 import os
 import sys
-import io
-import re
-import logging
-import asyncio
 import subprocess
 import tempfile
+import venv
+import shutil
 import time
-import uuid
-from logging.handlers import RotatingFileHandler
+import re
+import logging
 import traceback
-import contextlib
-from typing import Dict, Any, Optional, List
+from typing import Dict, Any, List, Tuple
+from pathlib import Path
 
-# Import utility functions
-from .code_utils import DATA_FILES_DIR, format_output_path, clean_old_files
+# Configure logging - console only
+logger = logging.getLogger('python_executor')
+if not logger.handlers:
+    console_handler = logging.StreamHandler()
+    console_handler.setFormatter(
+        logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
+    )
+    logger.addHandler(console_handler)
+    logger.setLevel(logging.INFO)
 
-# Configure logging
-log_file = 'logs/code_interpreter.log'
-os.makedirs(os.path.dirname(log_file), exist_ok=True)
-formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
-file_handler = RotatingFileHandler(log_file, maxBytes=10*1024*1024, backupCount=5)
-file_handler.setFormatter(formatter)
-logger = logging.getLogger('code_interpreter')
-logger.setLevel(logging.INFO)
-logger.addHandler(file_handler)
+# Security and execution constants
+EXECUTION_TIMEOUT = 30  # Default timeout in seconds
+MAX_OUTPUT_SIZE = 50000  # Maximum output size in characters
 
-# Regular expression to find image file paths in output
-IMAGE_PATH_PATTERN = r'(\/media\/quocanh\/.*\.(png|jpg|jpeg|gif))'
-
-# Unsafe patterns for code security
-UNSAFE_IMPORTS = [
-    r'import\s+os\b', r'from\s+os\s+import', 
-    r'import\s+subprocess\b', r'from\s+subprocess\s+import',
-    r'import\s+shutil\b', r'from\s+shutil\s+import',
-    r'__import__\([\'"]os[\'"]\)', r'__import__\([\'"]subprocess[\'"]\)',
-    r'import\s+sys\b(?!\s+import\s+path)', r'from\s+sys\s+import'
-]
-
-UNSAFE_FUNCTIONS = [
-    r'os\.', r'subprocess\.', r'shutil\.', 
-    r'eval\(', r'exec\(', r'sys\.',
-    r'open\([\'"][^\'"]*/[^\']*[\'"]', # File system access
-    r'__import__\(', r'globals\(\)', r'locals\(\)'
-]
-
-def sanitize_python_code(code: str) -> tuple[bool, str]:
+class SecureExecutor:
+    """
+    Completely isolated Python executor with fresh virtual environments.
+    Each execution gets a completely clean environment.
     """
-    Check Python code for potentially unsafe operations.
     
-    Args:
-        code: The code to check
+    def __init__(self):
+        self.temp_dir = None
+        self.venv_path = None
         
-    Returns:
-        Tuple of (is_safe, sanitized_code_or_error_message)
-    """
-    # Check for unsafe imports
-    for pattern in UNSAFE_IMPORTS:
-        if re.search(pattern, code):
-            return False, f"Forbidden import detected: {pattern}"
-    
-    # Check for unsafe function calls
-    for pattern in UNSAFE_FUNCTIONS:
-        if re.search(pattern, code):
-            return False, f"Forbidden function call detected: {pattern}"
-    
-    # Add safety imports and commonly used libraries
-    safe_imports = """
-import math
-import random
-import json
-import time
-from datetime import datetime, timedelta
-import collections
-import itertools
-import functools
-try:
-    import numpy as np
-except ImportError:
-    pass
-try:
-    import pandas as pd
-except ImportError:
-    pass
-try:
-    import matplotlib.pyplot as plt
-    import matplotlib
-    matplotlib.use('Agg')
-except ImportError:
-    pass
-try:
-    import seaborn as sns
-except ImportError:
-    pass
-"""
-    
-    return True, safe_imports + "\n" + code
-
-async def install_packages(packages: List[str]) -> Dict[str, Any]:
-    """
-    Install Python packages in a sandboxed environment.
-    
-    Args:
-        packages: List of package names to install
+    def __enter__(self):
+        return self
         
-    Returns:
-        Dict containing installation results
-    """
-    try:
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.cleanup()
+    
+    def cleanup(self):
+        """Clean up temporary directories and virtual environments."""
+        if self.temp_dir and os.path.exists(self.temp_dir):
+            try:
+                shutil.rmtree(self.temp_dir)
+                logger.debug(f"Cleaned up temporary directory: {self.temp_dir}")
+            except Exception as e:
+                logger.warning(f"Failed to cleanup temp dir {self.temp_dir}: {e}")
+    
+    def validate_code_security(self, code: str) -> Tuple[bool, str]:
+        """
+        Validate code for security threats.
+        
+        Args:
+            code: Python code to validate
+            
+        Returns:
+            Tuple of (is_safe, message)
+        """
+        # Blocked imports (security-sensitive modules)
+        unsafe_imports = [
+            r'import\s+os\b', r'from\s+os\s+import', 
+            r'import\s+subprocess\b', r'from\s+subprocess\s+import',
+            r'import\s+sys\b', r'from\s+sys\s+import',
+            r'import\s+shutil\b', r'from\s+shutil\s+import',
+            r'import\s+socket\b', r'from\s+socket\s+import',
+            r'import\s+urllib\b', r'from\s+urllib\s+import',
+            r'import\s+requests\b', r'from\s+requests\s+import',
+            r'import\s+pathlib\b', r'from\s+pathlib\s+import',
+            r'__import__\s*\(', r'eval\s*\(', r'exec\s*\(',
+            r'compile\s*\(', r'open\s*\('
+        ]
+        
+        # Check for unsafe imports
+        for pattern in unsafe_imports:
+            if re.search(pattern, code, re.IGNORECASE):
+                return False, f"Blocked unsafe import/function: {pattern}"
+        
+        # Check for file system operations
+        file_operations = [
+            r'\.write\s*\(', r'\.read\s*\(', r'\.remove\s*\(',
+            r'\.mkdir\s*\(', r'\.rmdir\s*\(', r'\.delete\s*\('
+        ]
+        
+        for pattern in file_operations:
+            if re.search(pattern, code, re.IGNORECASE):
+                return False, f"Blocked file operation: {pattern}"
+        
+        # Check for network operations
+        network_patterns = [
+            r'socket\s*\(', r'connect\s*\(', r'bind\s*\(',
+            r'listen\s*\(', r'accept\s*\(', r'send\s*\(',
+            r'recv\s*\(', r'http\w*\s*\(', r'ftp\w*\s*\('
+        ]
+        
+        for pattern in network_patterns:
+            if re.search(pattern, code, re.IGNORECASE):
+                return False, f"Blocked network operation: {pattern}"
+        
+        return True, "Code passed security validation"
+    
+    def create_clean_environment(self) -> Tuple[str, str, str]:
+        """
+        Create a completely clean virtual environment.
+        
+        Returns:
+            Tuple of (venv_path, python_executable, pip_executable)
+        """
+        # Create temporary directory
+        self.temp_dir = tempfile.mkdtemp(prefix="secure_python_")
+        self.venv_path = os.path.join(self.temp_dir, "venv")
+        
+        logger.info(f"Creating clean virtual environment at: {self.venv_path}")
+        
+        # Create virtual environment
+        venv.create(self.venv_path, with_pip=True, clear=True)
+        
+        # Get paths to executables
+        if os.name == 'nt':  # Windows
+            python_path = os.path.join(self.venv_path, "Scripts", "python.exe")
+            pip_path = os.path.join(self.venv_path, "Scripts", "pip.exe")
+        else:  # Unix/Linux
+            python_path = os.path.join(self.venv_path, "bin", "python")
+            pip_path = os.path.join(self.venv_path, "bin", "pip")
+        
+        # Verify executables exist
+        if not os.path.exists(python_path):
+            raise RuntimeError(f"Python executable not found: {python_path}")
+        if not os.path.exists(pip_path):
+            raise RuntimeError(f"Pip executable not found: {pip_path}")
+        
+        logger.debug(f"Clean environment created - Python: {python_path}, Pip: {pip_path}")
+        return self.venv_path, python_path, pip_path
+    
+    def validate_package_safety(self, package: str) -> Tuple[bool, str]:
+        """
+        Validate if a package is safe to install.
+        
+        Args:
+            package: Package name to validate
+            
+        Returns:
+            Tuple of (is_safe, reason)
+        """
+        package_lower = package.lower().strip()
+        
+        # Completely blocked packages
+        blocked_packages = {
+            'os', 'subprocess', 'sys', 'shutil', 'socket', 'urllib', 'requests',
+            'paramiko', 'fabric', 'invoke', 'pexpect', 'ptyprocess',
+            'cryptography', 'pycrypto', 'pyopenssl', 'psutil',
+            'django', 'flask', 'tornado', 'twisted', 'aiohttp', 'fastapi',
+            'sqlalchemy', 'psycopg2', 'mysql-connector', 'pymongo',
+            'selenium', 'scrapy', 'beautifulsoup4', 'lxml', 'mechanize'
+        }
+        
+        if package_lower in blocked_packages:
+            return False, f"Package '{package}' is blocked for security reasons"
+        
+        # Check for suspicious patterns
+        suspicious_patterns = ['exec', 'eval', 'compile', 'system', 'shell', 'cmd', 'hack', 'exploit']
+        for pattern in suspicious_patterns:
+            if pattern in package_lower:
+                return False, f"Package name contains suspicious keyword: {pattern}"
+        
+        # Allowed safe packages for data science
+        safe_packages = {
+            'numpy', 'pandas', 'matplotlib', 'seaborn', 'plotly', 'bokeh',
+            'scipy', 'scikit-learn', 'sklearn', 'statsmodels',
+            'pillow', 'opencv-python', 'imageio', 'skimage',
+            'pytz', 'dateutil', 'arrow', 'pendulum',
+            'pyyaml', 'toml', 'configparser', 'jsonschema',
+            'tqdm', 'progressbar2', 'click', 'typer',
+            'openpyxl', 'xlrd', 'xlwt', 'xlsxwriter',
+            'sympy', 'networkx', 'igraph'
+        }
+        
+        if package_lower in safe_packages:
+            return True, f"Package '{package}' is pre-approved as safe"
+        
+        # For unknown packages, be restrictive
+        return False, f"Package '{package}' is not in the approved safe list"
+    
+    def install_packages_clean(self, packages: List[str], pip_path: str) -> Tuple[List[str], List[str]]:
+        """
+        Install packages in the clean virtual environment.
+        
+        Args:
+            packages: List of package names to install
+            pip_path: Path to pip executable in the clean environment
+            
+        Returns:
+            Tuple of (installed_packages, failed_packages)
+        """
         installed = []
         failed = []
         
         for package in packages:
+            # Validate package safety
+            is_safe, reason = self.validate_package_safety(package)
+            if not is_safe:
+                failed.append(package)
+                continue
+            
             try:
-                # Use pip to install package with timeout
-                result = subprocess.run([
-                    sys.executable, "-m", "pip", "install", package, "--user", "--quiet"
-                ], capture_output=True, text=True, timeout=120)
+                # Install package in the clean virtual environment
+                result = subprocess.run(
+                    [pip_path, "install", package],
+                    capture_output=True,
+                    text=True,
+                    timeout=120,  # 2 minutes per package
+                    check=False,
+                    cwd=self.temp_dir  # Run from temp directory
+                )
                 
                 if result.returncode == 0:
                     installed.append(package)
-                    logger.info(f"Successfully installed package: {package}")
                 else:
-                    failed.append({"package": package, "error": result.stderr})
-                    logger.error(f"Failed to install package {package}: {result.stderr}")
+                    failed.append(package)
                     
             except subprocess.TimeoutExpired:
-                failed.append({"package": package, "error": "Installation timeout"})
-                logger.error(f"Installation timeout for package: {package}")
+                failed.append(package)
             except Exception as e:
-                failed.append({"package": package, "error": str(e)})
-                logger.error(f"Error installing package {package}: {str(e)}")
+                failed.append(package)
         
-        return {
-            "success": True,
-            "installed": installed,
-            "failed": failed,
-            "message": f"Installed {len(installed)} packages, {len(failed)} failed"
-        }
+        return installed, failed
+    
+    def execute_code_secure(self, code: str, python_path: str, timeout: int) -> Dict[str, Any]:
+        """
+        Execute Python code in the completely isolated environment.
         
-    except Exception as e:
-        logger.error(f"Error in package installation: {str(e)}")
-        return {
-            "success": False,
-            "error": str(e),
-            "installed": [],
-            "failed": packages
-        }
+        Args:
+            code: Python code to execute
+            python_path: Path to Python executable in clean environment
+            timeout: Execution timeout in seconds
+            
+        Returns:
+            Dict containing execution results
+        """
+        start_time = time.time()
+        
+        # Create code file in the isolated environment
+        code_file = os.path.join(self.temp_dir, "code_to_execute.py")
+        
+        try:
+            with open(code_file, 'w', encoding='utf-8') as f:
+                f.write(code)
+            
+            # Execute code in completely isolated environment
+            result = subprocess.run(
+                [python_path, code_file],
+                capture_output=True,
+                text=True,
+                timeout=timeout,
+                check=False,
+                cwd=self.temp_dir,  # Run from isolated directory
+                env={  # Minimal environment variables
+                    'PATH': os.path.dirname(python_path),
+                    'PYTHONPATH': '',
+                    'PYTHONHOME': '',
+                }
+            )
+            
+            execution_time = time.time() - start_time
+            
+            # Process results
+            output = result.stdout
+            error_output = result.stderr
+            
+            # Truncate output if too large
+            if len(output) > MAX_OUTPUT_SIZE:
+                output = output[:MAX_OUTPUT_SIZE] + "\n... (output truncated)"
+            
+            if result.returncode == 0:
+                return {
+                    "success": True,
+                    "output": output,
+                    "error": error_output if error_output else "",
+                    "execution_time": execution_time,
+                    "return_code": result.returncode
+                }
+            else:
+                return {
+                    "success": False,
+                    "output": output,
+                    "error": error_output,
+                    "execution_time": execution_time,
+                    "return_code": result.returncode
+                }
+                
+        except subprocess.TimeoutExpired:
+            return {
+                "success": False,
+                "output": "",
+                "error": f"Code execution timed out after {timeout} seconds",
+                "execution_time": timeout,
+                "return_code": -1
+            }
+        except Exception as e:
+            execution_time = time.time() - start_time
+            error_msg = f"Execution error: {str(e)}"
+            
+            return {
+                "success": False,
+                "output": "",
+                "error": error_msg,
+                "execution_time": execution_time,
+                "traceback": traceback.format_exc()
+            }
+        finally:
+            # Clean up code file
+            try:
+                if os.path.exists(code_file):
+                    os.remove(code_file)
+            except Exception as e:
+                pass  # Silent cleanup failure
+
 
 async def execute_python_code(args: Dict[str, Any]) -> Dict[str, Any]:
     """
-    Execute Python code in a controlled sandbox environment.
+    Execute Python code in a completely clean, isolated environment.
     
     Args:
         args: Dictionary containing:
             - code: The Python code to execute
-            - input: Optional input data for the code
-            - install_packages: List of packages to install before execution
+            - input_data: Optional input data for the code
+            - install_packages: List of packages to install (will be validated for security)
             - timeout: Optional timeout in seconds (default: 30)
             
     Returns:
@@ -164,9 +340,9 @@ async def execute_python_code(args: Dict[str, Any]) -> Dict[str, Any]:
     """
     try:
         code = args.get("code", "")
-        input_data = args.get("input", "")
+        input_data = args.get("input_data", "")
         packages_to_install = args.get("install_packages", [])
-        timeout = args.get("timeout", 30)
+        timeout = args.get("timeout", EXECUTION_TIMEOUT)
         
         if not code:
             return {
@@ -175,50 +351,51 @@ async def execute_python_code(args: Dict[str, Any]) -> Dict[str, Any]:
                 "output": ""
             }
         
-        # Install requested packages first
-        installed_packages = []
-        if packages_to_install:
-            logger.info(f"Installing requested packages: {packages_to_install}")
-            install_result = await install_packages(packages_to_install)
+        with SecureExecutor() as executor:
+            # Validate code security
+            is_safe, safety_message = executor.validate_code_security(code)
+            if not is_safe:
+                return {
+                    "success": False,
+                    "output": "",
+                    "error": f"Security violation: {safety_message}",
+                    "execution_time": 0
+                }
             
-            if install_result["installed"]:
-                installed_packages = install_result["installed"]
-                logger.info(f"Successfully installed: {installed_packages}")
+            # Create completely clean environment
+            venv_path, python_path, pip_path = executor.create_clean_environment()
             
-            if install_result["failed"]:
-                failed_packages = [f["package"] for f in install_result["failed"]]
-                logger.warning(f"Failed to install: {failed_packages}")
-                # Continue execution even if some packages failed to install
-        
-        # Sanitize the code
-        is_safe, sanitized_code = sanitize_python_code(code)
-        if not is_safe:
-            logger.warning(f"Code sanitization failed: {sanitized_code}")
-            return {
-                "success": False,
-                "error": sanitized_code,
-                "output": ""
-            }
-        
-        # Clean up old files before execution
-        clean_old_files()
-        
-        # Execute code in controlled environment
-        result = await execute_code_safely(sanitized_code, input_data, timeout)
-        
-        # Add information about installed packages to the result
-        if installed_packages:
-            result["installed_packages"] = installed_packages
-            # Prepend package installation info to output
-            if result.get("success"):
-                package_info = f"[Installed packages: {', '.join(installed_packages)}]\n\n"
-                result["output"] = package_info + result.get("output", "")
-        
-        return result
+            # Install only requested packages (if any)
+            installed_packages = []
+            failed_packages = []
+            if packages_to_install:
+                installed_packages, failed_packages = executor.install_packages_clean(packages_to_install, pip_path)
+            
+            # Prepare code with input data if provided
+            if input_data:
+                # Add input data as a variable in the code
+                code_with_input = f"input_data = '''{input_data}'''\n\n{code}"
+            else:
+                code_with_input = code
+            
+            # Execute code in clean environment
+            result = executor.execute_code_secure(code_with_input, python_path, timeout)
+            
+            # Add package installation info
+            if installed_packages:
+                result["installed_packages"] = installed_packages
+                # Prepend package installation info to output
+                if result.get("success"):
+                    package_info = f"[Installed packages: {', '.join(installed_packages)}]\n\n"
+                    result["output"] = package_info + result.get("output", "")
+            
+            if failed_packages:
+                result["failed_packages"] = failed_packages
+            
+            return result
         
     except Exception as e:
         error_msg = f"Error in Python code execution: {str(e)}"
-        logger.error(f"{error_msg}\n{traceback.format_exc()}")
         return {
             "success": False,
             "error": error_msg,
@@ -226,210 +403,16 @@ async def execute_python_code(args: Dict[str, Any]) -> Dict[str, Any]:
             "traceback": traceback.format_exc()
         }
 
-async def execute_code_safely(code: str, input_data: str, timeout: int) -> Dict[str, Any]:
-    """
-    Execute code in a safe environment with proper isolation.
-    
-    Args:
-        code: Sanitized Python code to execute
-        input_data: Input data for the code
-        timeout: Execution timeout in seconds
-        
-    Returns:
-        Dict containing execution results
-    """
-    try:
-        # Capture stdout and stderr
-        old_stdout = sys.stdout
-        old_stderr = sys.stderr
-        stdout_capture = io.StringIO()
-        stderr_capture = io.StringIO()
-        
-        # Import commonly used libraries for the execution environment
-        try:
-            import matplotlib
-            matplotlib.use('Agg')  # Use non-interactive backend
-            import matplotlib.pyplot as plt
-        except ImportError:
-            plt = None
-        
-        try:
-            import numpy as np
-        except ImportError:
-            np = None
-            
-        try:
-            import pandas as pd
-        except ImportError:
-            pd = None
-        
-        # Create minimal execution namespace (memory optimized)
-        exec_globals = {
-            "__builtins__": {
-                # Essential builtins only
-                "print": print, "len": len, "range": range, "enumerate": enumerate,
-                "zip": zip, "sum": sum, "min": min, "max": max, "abs": abs,
-                "round": round, "sorted": sorted, "list": list, "dict": dict,
-                "set": set, "tuple": tuple, "str": str, "int": int, "float": float,
-                "bool": bool, "type": type, "isinstance": isinstance,
-                "__import__": __import__,  # Fixed: Added missing __import__
-                "ValueError": ValueError, "TypeError": TypeError, "IndexError": IndexError,
-                "KeyError": KeyError, "Exception": Exception,
-            },
-            # Essential modules only
-            "math": __import__("math"),
-            "json": __import__("json"),
-            "time": __import__("time"),
-        }
-        
-        # Add optional libraries only when needed (lazy loading for memory)
-        if "numpy" in code or "np." in code:
-            try:
-                exec_globals["np"] = __import__("numpy")
-                exec_globals["numpy"] = __import__("numpy")
-            except ImportError:
-                pass
-                
-        if "pandas" in code or "pd." in code:
-            try:
-                exec_globals["pd"] = __import__("pandas")
-                exec_globals["pandas"] = __import__("pandas")
-            except ImportError:
-                pass
-                
-        if "matplotlib" in code or "plt." in code:
-            try:
-                matplotlib = __import__("matplotlib")
-                matplotlib.use('Agg')
-                exec_globals["plt"] = __import__("matplotlib.pyplot")
-                exec_globals["matplotlib"] = matplotlib
-            except ImportError:
-                pass
-        
-        # Override input function if input_data is provided
-        if input_data:
-            input_lines = input_data.strip().split('\n')
-            input_iter = iter(input_lines)
-            exec_globals["input"] = lambda prompt="": next(input_iter, "")
-        
-        # Set up output capture
-        sys.stdout = stdout_capture
-        sys.stderr = stderr_capture
-        
-        # Generate output file path for any plots
-        timestamp = int(time.time())
-        output_filename = f"python_output_{timestamp}.png"
-        output_path = format_output_path(output_filename)
-        
-        # Execute the code with timeout
-        try:
-            # Execute the code as statements
-            await asyncio.wait_for(
-                asyncio.to_thread(exec, code, exec_globals),
-                timeout=timeout
-            )
-            
-            # Check for any matplotlib figures and save them
-            visualizations = []
-            if plt is not None and plt.get_fignums():
-                for i, fig_num in enumerate(plt.get_fignums()):
-                    try:
-                        fig = plt.figure(fig_num)
-                        if len(fig.get_axes()) > 0:
-                            # Save to output path
-                            fig_path = output_path.replace('.png', f'_{i}.png')
-                            fig.savefig(fig_path, bbox_inches='tight', dpi=150)
-                            visualizations.append(fig_path)
-                        plt.close(fig)
-                    except Exception as e:
-                        logger.error(f"Error saving figure {i}: {str(e)}")
-                
-                # Clear all figures
-                plt.close('all')
-            
-        except asyncio.TimeoutError:
-            return {
-                "success": False,
-                "error": f"Code execution timed out after {timeout} seconds",
-                "output": stdout_capture.getvalue(),
-                "stderr": stderr_capture.getvalue()
-            }
-        except Exception as e:
-            # Capture execution errors with helpful information
-            error_msg = str(e)
-            stderr_content = stderr_capture.getvalue()
-            
-            # If it's an import error, provide helpful guidance
-            if "ModuleNotFoundError" in error_msg or "ImportError" in error_msg:
-                error_msg += "\n\nHint: If you need additional packages, specify them in the 'install_packages' parameter."
-            
-            return {
-                "success": False,
-                "error": f"Execution error: {error_msg}",
-                "output": stdout_capture.getvalue(),
-                "stderr": stderr_content + f"\nExecution error: {error_msg}",
-                "traceback": traceback.format_exc()
-            }
-        
-        # Restore stdout and stderr
-        sys.stdout = old_stdout
-        sys.stderr = old_stderr
-        
-        # Get the outputs
-        stdout_output = stdout_capture.getvalue()
-        stderr_output = stderr_capture.getvalue()
-        
-        # Force cleanup and garbage collection for memory optimization
-        import gc
-        if 'plt' in exec_globals:
-            plt = exec_globals['plt']
-            plt.close('all')
-        exec_globals.clear()  # Clear execution environment
-        gc.collect()  # Force garbage collection
-        
-        # Check for any image paths in the output
-        image_paths = re.findall(IMAGE_PATH_PATTERN, stdout_output)
-        for img_path in image_paths:
-            if os.path.exists(img_path):
-                visualizations.append(img_path)
-        
-        # Remove image paths from output text
-        clean_output = stdout_output
-        for img_path in image_paths:
-            clean_output = clean_output.replace(img_path, "[Image saved]")
-        
-        logger.info(f"Python code executed successfully, output length: {len(clean_output)}")
-        if visualizations:
-            logger.info(f"Generated {len(visualizations)} visualizations")
-        
-        return {
-            "success": True,
-            "output": clean_output,
-            "stderr": stderr_output,
-            "visualizations": visualizations,
-            "has_visualization": len(visualizations) > 0,
-            "execution_time": f"Completed in under {timeout}s"
-        }
-        
-    except Exception as e:
-        # Restore stdout and stderr
-        sys.stdout = old_stdout
-        sys.stderr = old_stderr
-        
-        error_msg = f"Error executing Python code: {str(e)}"
-        logger.error(f"{error_msg}\n{traceback.format_exc()}")
-        
-        return {
-            "success": False,
-            "error": error_msg,
-            "output": stdout_capture.getvalue() if 'stdout_capture' in locals() else "",
-            "stderr": stderr_capture.getvalue() if 'stderr_capture' in locals() else "",
-            "traceback": traceback.format_exc()
-        }
 
-# Backward compatibility - keep the old function name
-async def execute_code(args: Dict[str, Any]) -> Dict[str, Any]:
+# Deprecated - keeping for backward compatibility
+async def install_packages(packages: List[str]) -> Dict[str, Any]:
     """
-    Backward compatibility wrapper for execute_python_code.
+    Legacy function for backward compatibility.
+    Note: In the new secure system, packages are installed per execution.
     """
-    return await execute_python_code(args)
+    return {
+        "success": False,
+        "installed": [],
+        "failed": packages,
+        "message": "Use install_packages parameter in execute_python_code instead"
+    }