On 2023-06-24 17:18, Jason Friedman via Python-list wrote:
I'm writing a database connectivity module to be used by other modules and
leveraging the jaydebeapi module.
From what I can tell jaydebeapi contains no built-in timeout capability, so
then I turned to https://pypi.org/project/timeout-decorator/.
My goal is to have a default timeout of, say, 10 seconds, which can be
overridden by the caller.
import jaydebeapi
from timeout_decorator import timeout
class Database:
database_connection = None
database_name, user_name, password, host, port = stuff
timeout = None
def __init__(self, timeout=10):
self.timeout = timeout
@timeout(self.timeout)
def get_connection(self):
if not self.database_connection:
self.database_connection = jaydebeapi.connect(some_args)
return self.database_connection
The trouble occurs on line 12 with:
NameError: name 'self' is not defined
The decorator is applied when the class is defined, but 'self' exists
only in 'Database.__init__' and 'Database.get_connection' when they are
called.
Have you tried applying the decorator "manually" in 'Database.__init__'?
def __init__(self, timeout=10):
self.timeout = timeout
self.get_connection = timeout(self.timeout)(self.get_connection)
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