The default method of the openai python library is to use an OPENAI_API_KEY environment variable set in your operating system. Then the API calls just work everywhere.
The client creation accepts parameters which are non-positional, meaning you need to specify the name of the parameter you are setting, such as:
from openai import OpenAI
o_client = OpenAI(timeout = 60)
That is the same way you would specify the parameter api_key and its value.