BUG: launching pytest without --tally flag results in crash

[jeffwright13]

========================================================= test session starts ==========================================================
platform darwin -- Python 3.10.5, pytest-7.3.0, pluggy-1.0.0
rootdir: /Users/jwr003/coding/pytest-tally
configfile: pytest.ini
plugins: rerunfailures-11.1.2, Faker-18.4.0, tally-1.1.1
collected 88 items                                                                                                                     

demo_tests/test_0.py E
INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/_pytest/main.py", line 269, in wrap_session
INTERNALERROR>     session.exitstatus = doit(config, session) or 0
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/_pytest/main.py", line 323, in _main
INTERNALERROR>     config.hook.pytest_runtestloop(session=session)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_hooks.py", line 265, in __call__
INTERNALERROR>     return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_callers.py", line 60, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_result.py", line 60, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_callers.py", line 39, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/_pytest/main.py", line 348, in pytest_runtestloop
INTERNALERROR>     item.config.hook.pytest_runtest_protocol(item=item, nextitem=nextitem)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_hooks.py", line 265, in __call__
INTERNALERROR>     return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_callers.py", line 60, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_result.py", line 60, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_callers.py", line 39, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/_pytest/runner.py", line 114, in pytest_runtest_protocol
INTERNALERROR>     runtestprotocol(item, nextitem=nextitem)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/_pytest/runner.py", line 127, in runtestprotocol
INTERNALERROR>     rep = call_and_report(item, "setup", log)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/_pytest/runner.py", line 226, in call_and_report
INTERNALERROR>     hook.pytest_runtest_logreport(report=report)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_hooks.py", line 265, in __call__
INTERNALERROR>     return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/venv/lib/python3.10/site-packages/pluggy/_callers.py", line 55, in _multicall
INTERNALERROR>     gen.send(outcome)
INTERNALERROR>   File "/Users/jwr003/coding/pytest-tally/pytest_tally/plugin.py", line 235, in pytest_runtest_logreport
INTERNALERROR>     tally_test = session_config._tally_session.tally_tests[tally_report.node_id]
INTERNALERROR> AttributeError: 'Config' object has no attribute '_tally_session'

=========================================================== 1 error in 0.50s ===========================================================```