SDKerror looker not found(404)

[nino2]

Using python SDK with Looker API. 

Want to create new project in looker where I have an admin and developer role. 

When I tried creating folder, it worked but I have SDK error when creating project.

it says:

 Looker Not Found (404) 

and bunch of html which says: 

Looker is unavailable. If you typed in a URL, double-check the spelling. This may also be due to a temporary condition such as an outage, scheduled maintenance or upgrade.

I have an looker.ini:

api_version=4.0

base_url=https://<hostname>.looker.com

client_id=client_id

client_secret=client_secret

verify_ssl=True

also tried base URL with 443, but getting the same error. as I checked in documentation 404 error in looker might be because of a permission.

python code:

sdk = looker_sdk.init40()

sdk.create_project(body=mdls.WriteProject(name="test_project"))

Anyone has an idea what is the problem and how to fix it?