[TIP] get fixtures for each parameter or global variables?

[James]

# conftest.py
import pytest

@pytest.fixture(scope='module')
def a(request):
     value = request.config.getoption("A")
     if not value:
         pytest.skip('test needs -A option to run')
     return value

class global_vars():
     def __init__(self):
         self.a=''
         self.b=''


@pytest.fixture(scope='module')
def get_globals():
     gv=global_vars()
     gv.a = pytest.config.getoption("A")
     gv.b = pytest.config.getoption("B")
     return gv

def pytest_addoption(parser):
     parser.addoption("--A", action="store", default=None, help="a option")
     parser.addoption("--B", action="store", default=None, help="b option")

import inspect
import pytest

# testscript.py


@pytest.mark.usefixtures('get_globals')
class TestAclass():
     def test_1(self):
         print 'inside {0}-{1} 
step'.format(self.__class__.__name__,inspect.currentframe().f_code.co_name)
         gv=get_globals()
         print 'a={0}, b={1}'.format(gv.a, gv.b)
         pass


The output is:
______________________________ TestAclass.test_1 
_______________________________

self = <testscript.TestAclass instance at 0x7f2e48c12f38>

     def test_1(self):
         print 'inside {0}-{1} 
step'.format(self.__class__.__name__,inspect.currentframe().f_code.co_name)
 >       gv=get_globals()
E       NameError: global name 'get_globals' is not defined

testscript.py:11: NameError


I'm trying to store the parameters in global variables so it doesn't 
need to do pytest.config.getoption every time it wants a parameter.
Maybe I should just make get fixtures for each parameter?