RecursionError: maximum recursion depth exceeded while calling a Python object

[ryou90]

Expected Behavior

I want to retrieve an env variable from the dapr.config.settings class. If the variable is not present, an attribute error should be issued.

E.g.

from dapr.conf import settings

x = settings.APP_PORT # Not exist -> throw recursion error

Actual Behavior

When the variable not exists, a maximum recursion error is thrown and not a attribute error. This happens because the settings class use getattr method to lookup for non existing env variables. Within the method, getattr(..) is called, which caused a new recursive call.

The problem can be easily solved by removing the getattr method.

Steps to Reproduce the Problem

Test example code.

Release Note

RELEASE NOTE:
Fix RecursionError when calling non-existing env variable from settings class

[berndverst]

APP_PORT is not a supported setting in this SDK. There is HTTP_APP_PORT and GRPC_APP_PORT.

See

python-sdk/dapr/conf/global_settings.py

Lines 18 to 29 in a1aa2cb

	HTTP_APP_PORT = 3000
	GRPC_APP_PORT = 3010
	DAPR_API_TOKEN = None
	DAPR_RUNTIME_HOST = '127.0.0.1'
	DAPR_HTTP_PORT = 3500
	DAPR_GRPC_PORT = 50001
	DAPR_API_VERSION = 'v1.0'
	DAPR_API_METHOD_INVOCATION_PROTOCOL = 'http'
	DAPR_HTTP_TIMEOUT_SECONDS = 60

I updated the open PR for this issue to instead throw an AttributeError whenever you try to access a property that is not implemented.

EDIT: Your issue was filed correctly - I got confused because I looked at the PR that was opened first (thought it was from you, but was from someone else). The updates I made to that PR should give you exactly what you want -- an AttributeError for properties that don't exist / are not supported.