layout	title	parent	grand_parent	published
default	Set API Key	Python	API	false

Sets the API key (Optional)

`datacommons.set_api_key(api_key)`

Sets an environment variable "DC_API_KEY" to given api_key.

An API key can be provided to the API after importing the library, or set as an environment variable "DC_API_KEY".

For more details about how to get an API key and provide it to the Python Client API, please visit the Python library setup guide for more details.

Setting the API key is optional. Data Commons does not charge users, but uses the API key for understanding API usage.

Arguments