Have AlchemiscaleClient automatically pull settings from the environment

[jthorton]

I currently store my alchemiscale key, identifier and url in environment variables and find that I often have to write the same bit of code to get them from the environment and create the client object like so

import os
from alchemiscale import AlchemiscaleClient
client = AlchemiscaleClient(api_url=os.environ["ALCHEMISCALE_URL"], key=os.environ["ALCHEMISCALE_KEY"], identifier=os.environ["ALCHEMISCALE_ID"])

however it would be great if we could have the client do this automatically if the variables are present. We currently do this in asap-alchemy which helps when building a CLI which interacts with alchemiscale. Porting this to alchemiscale would be great and save packages from reimplementing this.

In broad terms, what are you trying to do?

Briefly detail what you have already tried

Describe the new feature(s) that would help you to achieve this

[mikemhenry]

Is your proposal that

client = AlchemiscaleClient()

Would just work if those environment variables exist?

[dotsdl]

Thanks @jthorton! I've added this to the 0.6.1 milestone!