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e0ee53b1b6
This fixes issue #3934 where 'crewai chat' fails when the crew has module-level LLM instantiation that requires OPENAI_API_KEY. The issue occurred because 'crewai chat' imports the crew module directly using __import__(), and any module-level code executes immediately during import. At this point, the .env file hadn't been loaded yet, so OPENAI_API_KEY was not available in the environment. Changes: - Load .env file in load_crew_and_name() before importing the crew module - Use os.environ.setdefault() to avoid overriding existing env vars - Add comprehensive tests covering: - Loading crew with .env containing OPENAI_API_KEY - Environment variable precedence (existing vars not overridden) - Loading crew without .env file Fixes #3934 Co-Authored-By: João <joao@crewai.com>