求教：pytest 安装后，查看 pytest --version 报错

测试积点老人

我使用以下命令 pip install -U pytest，安装了 pytest，显示是正常安装了，但是 pytest --version 查看版本后，出现了报错，我的 Python 是 3.7.0 版本的，最新 pytest 是 6.2.4 版本，怀疑是版本兼容问题，又使用了 5.3.0 和 4 的版本，依然没有解决，求教下大家，有没有什么解决方法

1. C:\Users\chenlibao>pip install -U pytest
   
2. Requirement already up-to-date: pytest in c:\python37\lib\site-packages (6.2.4)
   
3. Requirement already satisfied, skipping upgrade: atomicwrites>=1.0; sys_platform == "win32" in c:\python37\lib\site-packages (from pytest) (1.4.0)
   
4. Requirement already satisfied, skipping upgrade: iniconfig in c:\python37\lib\site-packages (from pytest) (1.1.1)
   
5. Requirement already satisfied, skipping upgrade: packaging in c:\python37\lib\site-packages (from pytest) (20.9)
   
6. Requirement already satisfied, skipping upgrade: py>=1.8.2 in c:\python37\lib\site-packages (from pytest) (1.10.0)
   
7. Requirement already satisfied, skipping upgrade: toml in c:\python37\lib\site-packages (from pytest) (0.10.2)
   
8. Requirement already satisfied, skipping upgrade: attrs>=19.2.0 in c:\python37\lib\site-packages (from pytest) (19.2.0)
   
9. Requirement already satisfied, skipping upgrade: importlib-metadata>=0.12; python_version < "3.8" in c:\python37\lib\site-packages (from pytest) (1.3.0)
   
10. Requirement already satisfied, skipping upgrade: colorama; sys_platform == "win32" in c:\python37\lib\site-packages (from pytest) (0.4.1)
    
11. Requirement already satisfied, skipping upgrade: pluggy<1.0.0a1,>=0.12 in c:\python37\lib\site-packages (from pytest) (0.13.1)
    
12. Requirement already satisfied, skipping upgrade: pyparsing>=2.0.2 in c:\python37\lib\site-packages (from packaging->pytest) (2.4.2)
    
13. Requirement already satisfied, skipping upgrade: zipp>=0.5 in c:\python37\lib\site-packages (from importlib-metadata>=0.12; python_version < "3.8"->pytest) (0.6.0)
    
14. Requirement already satisfied, skipping upgrade: more-itertools in c:\python37\lib\site-packages (from zipp>=0.5->importlib-metadata>=0.12; python_version < "3.8"->pytest) (8.0.2)
    
15. You are using pip version 19.0.3, however version 21.1.3 is available.
    
16. You should consider upgrading via the 'python -m pip install --upgrade pip' command.

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查看版本，出现报错

1. C:\Users\chenlibao>pytest --version
   
2. Traceback (most recent call last):
   
3.   File "c:\python37\lib\runpy.py", line 193, in _run_module_as_main
   
4.     "__main__", mod_spec)
   
5.   File "c:\python37\lib\runpy.py", line 85, in _run_code
   
6.     exec(code, run_globals)
   
7.   File "C:\Python37\Scripts\pytest.exe\__main__.py", line 9, in <module>
   
8.   File "c:\python37\lib\site-packages\_pytest\config\__init__.py", line 185, in console_main
   
9.     code = main()
   
10.   File "c:\python37\lib\site-packages\_pytest\config\__init__.py", line 143, in main
    
11.     config = _prepareconfig(args, plugins)
    
12.   File "c:\python37\lib\site-packages\_pytest\config\__init__.py", line 319, in _prepareconfig
    
13.     pluginmanager=pluginmanager, args=args
    
14.   File "c:\python37\lib\site-packages\pluggy\hooks.py", line 286, in __call__
    
15.     return self._hookexec(self, self.get_hookimpls(), kwargs)
    
16.   File "c:\python37\lib\site-packages\pluggy\manager.py", line 93, in _hookexec
    
17.     return self._inner_hookexec(hook, methods, kwargs)
    
18.   File "c:\python37\lib\site-packages\pluggy\manager.py", line 87, in <lambda>
    
19.     firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
    
20.   File "c:\python37\lib\site-packages\pluggy\callers.py", line 203, in _multicall
    
21.     gen.send(outcome)
    
22.   File "c:\python37\lib\site-packages\_pytest\helpconfig.py", line 100, in pytest_cmdline_parse
    
23.     config: Config = outcome.get_result()
    
24.   File "c:\python37\lib\site-packages\pluggy\callers.py", line 80, in get_result
    
25.     raise ex[1].with_traceback(ex[2])
    
26.   File "c:\python37\lib\site-packages\pluggy\callers.py", line 187, in _multicall
    
27.     res = hook_impl.function(*args)
    
28.   File "c:\python37\lib\site-packages\_pytest\config\__init__.py", line 1003, in pytest_cmdline_parse
    
29.     self.parse(args)
    
30.   File "c:\python37\lib\site-packages\_pytest\config\__init__.py", line 1283, in parse
    
31.     self._preparse(args, addopts=addopts)
    
32.   File "c:\python37\lib\site-packages\_pytest\config\__init__.py", line 1172, in _preparse
    
33.     self.pluginmanager.load_setuptools_entrypoints("pytest11")
    
34.   File "c:\python37\lib\site-packages\pluggy\manager.py", line 299, in load_setuptools_entrypoints
    
35.     plugin = ep.load()
    
36.   File "c:\python37\lib\site-packages\importlib_metadata\__init__.py", line 94, in load
    
37.     module = import_module(match.group('module'))
    
38.   File "c:\python37\lib\importlib\__init__.py", line 127, in import_module
    
39.     return _bootstrap._gcd_import(name[level:], package, level)
    
40.   File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
    
41.   File "<frozen importlib._bootstrap>", line 983, in _find_and_load
    
42.   File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
    
43.   File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
    
44.   File "c:\python37\lib\site-packages\_pytest\assertion\rewrite.py", line 170, in exec_module
    
45.     exec(co, module.__dict__)
    
46.   File "c:\python37\lib\site-packages\celery\contrib\pytest.py", line 6, in <module>
    
47.     from .testing import worker
    
48.   File "<frozen importlib._bootstrap>", line 983, in _find_and_load
    
49.   File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
    
50.   File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
    
51.   File "c:\python37\lib\site-packages\_pytest\assertion\rewrite.py", line 170, in exec_module
    
52.     exec(co, module.__dict__)
    
53.   File "c:\python37\lib\site-packages\celery\contrib\testing\worker.py", line 6, in <module>
    
54.     from celery import worker
    
55.   File "<frozen importlib._bootstrap>", line 983, in _find_and_load
    
56.   File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
    
57.   File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
    
58.   File "c:\python37\lib\site-packages\_pytest\assertion\rewrite.py", line 170, in exec_module
    
59.     exec(co, module.__dict__)
    
60.   File "c:\python37\lib\site-packages\celery\worker\__init__.py", line 3, in <module>
    
61.     from .worker import WorkController
    
62.   File "<frozen importlib._bootstrap>", line 983, in _find_and_load
    
63.   File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
    
64.   File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
    
65.   File "c:\python37\lib\site-packages\_pytest\assertion\rewrite.py", line 161, in exec_module
    
66.     source_stat, co = _rewrite_test(fn, self.config)
    
67.   File "c:\python37\lib\site-packages\_pytest\assertion\rewrite.py", line 354, in _rewrite_test
    
68.     tree = ast.parse(source, filename=fn_)
    
69.   File "c:\python37\lib\ast.py", line 35, in parse
    
70.     return compile(source, filename, mode, PyCF_ONLY_AST)
    
71.   File "c:\python37\lib\site-packages\celery\worker\worker.py", line 241
    
72.     self._conninfo.transport.implements.async and
    
73.                                             ^
    
74. SyntaxError: invalid syntax

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qqq911

环境变量检查下

bellas

参考下这个链接https://testerhome.com/topics/30474

海海豚

环境变量配的不对

郭小贱

看着像是 celery 与 python 的版本冲突， 你把 celery 升下级试试。

litingting0214

重新配置下环境变量吧