No module named winreg: windows python2.7

[asottile]

$ tox -e py37
GLOB sdist-make: C:\Users\Anthony\AppData\Local\Temp\x\tox\aspy.yaml\setup.py
py37 create: C:\Users\Anthony\AppData\Local\Temp\x\tox\aspy.yaml\.tox\py37
___________________________________ summary ___________________________________
  py37: commands succeeded
  congratulations :)
Traceback (most recent call last):
  File "C:\Users\Anthony\AppData\Local\Temp\x\tox\aspy.yaml\venv\Scripts\tox-script.py", line 11, in <module>
    load_entry_point('tox', 'console_scripts', 'tox')()
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\session\__init__.py",line 44, in cmdline
    main(args)
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\session\__init__.py",line 68, in main
    exit_code = session.runcommand()
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\session\__init__.py",line 192, in runcommand
    return self.subcommand_test()
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\session\__init__.py",line 220, in subcommand_test
    run_sequential(self.config, self.venv_dict)
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\session\commands\run\sequential.py", line 9, in run_sequential
    if venv.setupenv():
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\venv.py", line 595, in setupenv
    status = self.update(action=action)
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\venv.py", line 253, in update
    self.hook.tox_testenv_create(action=action, venv=self)
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\hooks.py", line 289, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\manager.py", line 68, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\manager.py", line 62, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\callers.py", line 208, in _multicall
    return outcome.get_result()
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\callers.py", line 81, in get_result
    _reraise(*ex)  # noqa
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\venv.py", line 665, in tox_testenv_create
    config_interpreter = venv.getsupportedinterpreter()
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\venv.py", line 294, in getsupportedinterpreter
    return self.envconfig.getsupportedinterpreter()
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\config\__init__.py", line 953, in getsupportedinterpreter
    info = self.config.interpreters.get_info(envconfig=self)
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\interpreters\__init__.py", line 32, in get_info
    executable = self.get_executable(envconfig)
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\interpreters\__init__.py", line 26, in get_executable
    exe = self.hook.tox_get_python_executable(envconfig=envconfig)
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\hooks.py", line 289, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\manager.py", line 68, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\manager.py", line 62, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\callers.py", line 208, in _multicall
    return outcome.get_result()
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\callers.py", line 81, in get_result
    _reraise(*ex)  # noqa
  File "c:\users\anthony\appdata\local\temp\x\tox\aspy.yaml\venv\lib\site-packages\pluggy\callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\interpreters\windows\__init__.py", line 21, in tox_get_python_executable
    py_exe = locate_via_pep514(spec)
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\interpreters\windows\__init__.py", line 45, in locate_via_pep514
    from . import pep514
  File "c:\users\anthony\appdata\local\temp\x\tox\src\tox\interpreters\windows\pep514.py", line 8, in <module>
    import winreg
ImportError: No module named winreg

Seems this module is not present in python2.7:

$ C:/Python27/python.exe -c 'import winreg'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named winreg
$ C:/Python37/python.exe -c 'import winreg'
$

[gaborbernat]

Seems it's https://docs.python.org/2/library/_winreg.html... can you alter the import and test?

35.3. _winreg — Windows registry access — Python 2.7.16 documentation

[asottile]

yeah, working on a patch for it -- not sure what's going on with our CI though :S

[gaborbernat]

for some reason 3.7 matches 2.7 during specification lookup...

[asottile]

I can also reproduce the version incorrectness as well:

$ tox -e py27
GLOB sdist-make: C:\Users\Anthony\AppData\Local\Temp\x\tox\aspy.yaml\setup.py
py27 inst-nodeps: C:\Users\Anthony\AppData\Local\Temp\x\tox\aspy.yaml\.tox\.tmp\package\1\aspy.yaml-1.2.0.zip
py27 installed: aspy.yaml==1.2.0,atomicwrites==1.3.0,attrs==19.1.0,cfgv==1.6.0,colorama==0.4.1,coverage==4.5.3,entrypoints==0.3,flake8==3.7.7,identify==1.4.3,importlib-metadata==0.13,mccabe==0.6.1,more-itertools==7.0.0,nodeenv==1.3.3,pluggy==0.11.0,pre-commit==1.16.1,py==1.8.0,pycodestyle==2.5.0,pyflakes==2.1.1,pytest==4.5.0,PyYAML==5.1,six==1.12.0,toml==0.10.0,virtualenv==16.6.0,wcwidth==0.1.7,zipp==0.5.1
py27 run-test-pre: PYTHONHASHSEED='953'
py27 run-test: commands[0] | coverage erase
py27 run-test: commands[1] | coverage run -m pytest tests
============================= test session starts =============================
platform win32 -- Python 3.7.1, pytest-4.5.0, py-1.8.0, pluggy-0.11.0
cachedir: aspy.yaml\.tox\py27\.pytest_cache
rootdir: C:\Users\Anthony\AppData\Local\Temp\x\tox, inifile: tox.ini, testpaths: tests
collected 3 items

tests\yaml_test.py ...                                                   [100%]

========================== 3 passed in 0.07 seconds ===========================
py27 run-test: commands[2] | coverage report --show-missing --fail-under 100
Name                    Stmts   Miss Branch BrPart  Cover   Missing
-------------------------------------------------------------------
aspy\__init__.py            1      0      0      0   100%
aspy\yaml\__init__.py      20      0      0      0   100%
tests\__init__.py           0      0      0      0   100%
tests\yaml_test.py         14      0      0      0   100%
-------------------------------------------------------------------
TOTAL                      35      0      0      0   100%
py27 run-test: commands[3] | pre-commit install
pre-commit installed at .git\hooks\pre-commit
___________________________________ summary ___________________________________
  py27: commands succeeded
  congratulations :)

[gaborbernat]

The https://github.com/tox-dev/tox/blob/master/src/tox/interpreters/py_spec.py#L31 spec matching looks ok though

GitHub

tox-dev/tox

Command line driven CI frontend and development task automation tool - tox-dev/tox

[gaborbernat]

If you run it with -vv py27 uses C:\hostedtoolcache\windows\Python\3.7.2\x86\python.exe

[asottile]

this one is a bit rough to debug, seems output is gobbled somewhere

But with this patch:

     def satisfies(self, req):
+        import pprint
+        print('*' * 79)
+        pprint.pprint(vars(req))
+        pprint.pprint(vars(self))
+        print('*' * 79)
         if req.is_abs and self.is_abs and self.path != req.path:

I get this output:

*******************************************************************************
{'architecture': None,
 'args': None,
 'major': 2,
 'minor': 7,
 'name': 'python',
 'path': None}
{'architecture': 64,
 'args': None,
 'major': 2,
 'minor': 7,
 'name': u'python',
 'path': 'c:\\users\\anthony\\appdata\\local\\temp\\x\\tox\\aspy.yaml\\venv\\scripts\\python.exe'}
*******************************************************************************

which at least looks right 🤔

[asottile]

gotta run to a meeting, I'll poke at this in a bit

[gaborbernat]

found it #1317 ... 🤦‍♂