问题描述：

在安装pytest的过程中：

如果安装顺序是这样的：

安装：pytest和pytest-parallel

然后运行代码，就会发生如下报错：

INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/_pytest/main.py", line 266, in wrap_session
INTERNALERROR>     config._do_configure()
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/_pytest/config/__init__.py", line 1037, in _do_configure
INTERNALERROR>     self.hook.pytest_configure.call_historic(kwargs=dict(config=self))
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/pluggy/_hooks.py", line 277, in call_historic
INTERNALERROR>     res = self._hookexec(self.name, self.get_hookimpls(), kwargs, False)
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/pluggy/_manager.py", line 80, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/pluggy/_callers.py", line 60, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/pluggy/_result.py", line 60, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/pluggy/_callers.py", line 39, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/pytest_parallel/__init__.py", line 111, in pytest_configure
INTERNALERROR>     config.pluginmanager.register(ParallelRunner(config), 'parallelrunner')
INTERNALERROR>   File "/home/shengguowei/anaconda3/envs/NPU/lib/python3.9/site-packages/pytest_parallel/__init__.py", line 196, in __init__
INTERNALERROR>     self._log = py.log.Producer('pytest-parallel')
INTERNALERROR> AttributeError: module 'py' has no attribute 'log'

这个时候我们pip install py，对自带的py进行一个升级，覆盖掉这个内建的py即可。