Add dotenv.py helper to fix ImportError

python/helpers/dotenv.py

@@ -0,0 +1,50 @@
+"""
+Simple dotenv implementation for loading environment variables from .env files.
+This is a compatibility layer for the agent-zero framework.
+"""
+
+import os
+import re
+from typing import Optional, Dict
+
+def load_dotenv(path: Optional[str] = None) -> bool:
+    """
+    Load environment variables from a .env file.
+    
+    Args:
+        path: Path to the .env file. If None, looks for .env in current directory.
+        
+    Returns:
+        True if the file was loaded successfully, False otherwise.
+    """
+    if path is None:
+        path = ".env"
+    
+    if not os.path.exists(path):
+        return False
+    
+    try:
+        with open(path, "r") as f:
+            for line in f:
+                line = line.strip()
+                # Skip empty lines and comments
+                if not line or line.startswith("#"):
+                    continue
+                
+                # Match KEY=VALUE or KEY="VALUE" or KEY='VALUE'
+                match = re.match(r'^([A-Za-z_][A-Za-z0-9_]*)=(.*)$', line)
+                if match:
+                    key = match.group(1)
+                    value = match.group(2)
+                    
+                    # Remove quotes if present
+                    if (value.startswith('"') and value.endswith('"')) or \
+                       (value.startswith("'") and value.endswith("'")):
+                        value = value[1:-1]
+                    
+                    # Set environment variable
+                    os.environ[key] = value
+        
+        return True
+    except Exception:
+        return False