Getting error: AttributeError: 'Tests' object has no attribute 't'

[vipkum2]

I am using below code, It was working fine with pytest version 3.0.4, not working with 3.7.2
Python version: 3.6 on linux

class Tests(object):
     @classmethod
     @pytest.fixture(scope='module', autouse=True)
     def getTestFixture(self, request):
        self.fixtureIp   = request.config.getoption('--fixtureIp')
        print()
        print('Fixture IP           : %s' % (self.fixtureIp))
        # Connect to the NE
        self.t = OpenRoadmTest(self.fixtureIp)
        self.t.connectTL1()
        print(self.t) #working fine

     def test00_getStartingConfig(self,):
        print(self.t)
        #not working , showing error: AttributeError: 'Tests' object has no attribute 't'

[RonnyPfannschmidt]

switching the order of classmethod and fixture should fix the issue for you

[RonnyPfannschmidt]

this is a known issue that got introduced by a warning functionality in 3.7 and demonstrates to be hard

[vipkum2]

Thank you very much for quick response.

[vipkum2]

Hi,
Again observed the same issue with pytest version 4.4.1. And this time switching the order is also not working as @RonnyPfannschmidt suggested previously.

[nicoddemus]

Hi @vipkum2,

Usually in this case it is enough to set your attribute in the class itself rather than using a classmethod. Using your previous example:

class Tests(object):
     @pytest.fixture(scope='module', autouse=True)
     def getTestFixture(self, request):
        ...
        type(self).t = OpenRoadmTest(self.fixtureIp)
        ...

This should definitely work. If not, can you post another issue including an example? Thanks!

[vahabrat]

Hi @vipkum2!

type(self).t = 'some data' worked for me
to get this value from the attribute in methods use: type(self).t