Frozen os while using os.environ[“OPENAI_API_KEY”]
File “C:UsersdhruvDesktoplangchainapp.py”, line 9, in
os.environ[“OPENAI_API_KEY”]=os.getenv(“OPENAI_API_KEY”)
~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File “”, line 690, in setitem
File “”, line 750, in check_str
TypeError: str expected, not NoneType