一、背景說明
上周測試的同事說pytest+allure環境在別人電腦上跑沒問題，在她的環境跑卻報錯讓幫看一下。其實pytest只是聽說過allure直接沒聽過，但不能直接表示不會，祭出百度大法。
看環境pytest直接以python庫的形式安裝就可以了：pip install pytest pytest-allure-adaptor pytest-rerunfailures pytest-html
allure安裝也簡單下載解壓然后將bin目錄添加到環境變量即可。下載地址：https://github.com/allure-framework/allure2/releases/tag/2.10.0
二、問題處理
2.1 報錯描述
主要運行報錯如下：
pluggy.manager.PluginValidationError: unknown hook 'pytest_namespace' in plugin <module 'allure.pytest_plugin' from 'd:\\language\\miniconda3\\e nvs\\pytest\\lib\\site-packages\\allure\\pytest_plugin.py'>
完整報錯如下：
F:\PycharmProjects\pytest>pytest
==================================================================== test session starts =====================================================================
platform win32 -- Python 3.6.6, pytest-4.3.0, py-1.7.0, pluggy-0.8.1
rootdir: F:\PycharmProjects\pytest, inifile: pytest.ini
plugins: rerunfailures-6.0, metadata-1.8.0, html-1.20.0, allure-adaptor-1.7.10
collecting 1 item I
NTERNALERROR> Traceback (most recent call last):
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\_pytest\main.py", line 210, in wrap_session
INTERNALERROR> session.exitstatus = doit(config, session) or 0
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\_pytest\main.py", line 249, in _main
INTERNALERROR> config.hook.pytest_collection(session=session)
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\pluggy\hooks.py", line 284, in __call__
INTERNALERROR> return self._hookexec(self, self.get_hookimpls(), kwargs)
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\pluggy\manager.py", line 68, in _hookexec
INTERNALERROR> return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\pluggy\manager.py", line 62, in <lambda>
INTERNALERROR> firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\pluggy\callers.py", line 208, in _multicall
INTERNALERROR> return outcome.get_result()
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\pluggy\callers.py", line 80, in get_result
INTERNALERROR> raise ex[1].with_traceback(ex[2])
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\pluggy\callers.py", line 187, in _multicall
INTERNALERROR> res = hook_impl.function(*args)
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\_pytest\main.py", line 259, in pytest_collection
INTERNALERROR> return session.perform_collect()
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\_pytest\main.py", line 487, in perform_collect
INTERNALERROR> self.config.pluginmanager.check_pending()
INTERNALERROR> File "d:\language\miniconda3\envs\pytest\lib\site-packages\pluggy\manager.py", line 251, in check_pending
INTERNALERROR> % (name, hookimpl.plugin),
INTERNALERROR> pluggy.manager.PluginValidationError: unknown hook 'pytest_namespace' in plugin <module 'allure.pytest_plugin' from 'd:\\language\\miniconda3\\e
nvs\\pytest\\lib\\site-packages\\allure\\pytest_plugin.py'>
2.2 報錯處理
反復重新創建配置了環境突然某次成功運行了，回頭排除項目使用中文路徑、python環境使用中文路徑、使用conda發行版后，想起google到的某個頁面說過是版本問題而且自己也按其建議裝了舊版本：
最后確定確實如其所說，pytest新版本（我當前是4.3.0）運行報錯，換成4.0.2版本就不會報錯：
# 卸載已安裝的pytest
pip uninstall pytest
# 安裝4.0.2版本pytest pip install pytest==4.0.2
成功運行如下圖：
參考：