Aider

# 1. Set your API key (e.g., OpenAI, Anthropic, Gemini, OpenRouter)
# For OpenAI, set OPENAI_API_KEY. For other providers, check Aider docs.
# export OPENAI_API_KEY="sk-..." (Linux/macOS)
# $env:OPENAI_API_KEY="sk-..." (PowerShell)

import os
import subprocess
import shutil

# Using a dummy key for demonstration; replace with your actual key
openai_api_key = os.environ.get('OPENAI_API_KEY', 'sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx')

if not openai_api_key.startswith('sk-'):
    print("WARNING: OPENAI_API_KEY not set or invalid. Aider will likely fail without a valid key.")

# Create a dummy project directory and a file to edit
project_dir = "aider_quickstart_project"
if os.path.exists(project_dir):
    shutil.rmtree(project_dir) # Clean up previous run
os.makedirs(project_dir)

os.chdir(project_dir)

with open("main.py", "w") as f:
    f.write("def hello_world():\n    print('Hello')\n")

# Initialize a git repo (Aider works best with git)
subprocess.run(["git", "init", "-b", "main"], check=True, capture_output=True)
subprocess.run(["git", "add", "main.py"], check=True, capture_output=True)
subprocess.run(["git", "commit", "-m", "Initial commit"], check=True, capture_output=True)

print(f"\nCreated '{project_dir}/main.py' and initialized git. Now launching Aider...\n")
print("To interact, type your requests into the terminal. E.g., 'Add 'world!' to the print statement.'")
print("Type '/help' for Aider commands, or '/exit' to quit.\n")

# Run Aider. The user will interact with it in the terminal.
# Use a model alias like 'gpt-4o' if OPENAI_API_KEY is set.
# Set environment variables for the subprocess call.
# Note: This will block until Aider exits.
result = subprocess.run(
    ["aider", "--model", "gpt-4o", "main.py"],
    env={**os.environ, 'OPENAI_API_KEY': openai_api_key},
    check=False # Aider might exit with non-zero if user cancels, etc.
)

print(f"\nAider process exited with code {result.returncode}.")
print(f"Check '{os.path.join(project_dir, 'main.py')}' for changes.")

# Clean up (optional)
os.chdir("..")
shutil.rmtree(project_dir)
print(f"Cleaned up '{project_dir}'.")