Facing an invocation error through tox command

[NevilleMthw]

So I just ran the tox command in the project folder and once I did I got a lot of invocation errors, and I wasn't sure on how to fix it. This error was produced through the tox -rvv.
Any help would be appreciated.

[gaborbernat]

For the one saying interpreter not found you can try setting in your tox.ini https://tox.readthedocs.io/en/latest/config.html#conf-skip_missing_interpreters to true.

For the ones complaining about could not install we would need to see more information, try running it via tox -vve py38 and posting the output of that.

[NevilleMthw]

Okay so I just did the skip missing interpreters part and that worked fine but the main issue I am facing is when I try to install the deps.

Would you want me to put the entire error message after I do the tox -vve py38 command?

[gaborbernat]

Yes. But make it tox -rvve py38

[NevilleMthw]

Okay so the error is:

using tox.ini: C:\Users\write\Desktop\smalld.py\tox.ini (pid 6252)
  removing C:\Users\write\Desktop\smalld.py\.tox\log
using tox-3.15.1 from C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\tox\__init__.py (pid 6252)
GLOB start: packaging 
GLOB sdist-make: C:\Users\write\Desktop\smalld.py\setup.py
  removing C:\Users\write\Desktop\smalld.py\.tox\dist
[4300] C:\Users\write\Desktop\smalld.py$ 'C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' setup.py sdist --formats=zip --dist-dir '.tox\dist' >.tox\log\GLOB-0.log
running sdist
running egg_info
writing smalld.egg-info\PKG-INFO
writing dependency_links to smalld.egg-info\dependency_links.txt
writing requirements to smalld.egg-info\requires.txt
writing top-level names to smalld.egg-info\top_level.txt
writing manifest file 'smalld.egg-info\SOURCES.txt'
running check
warning: check: missing required meta-data: url

warning: check: missing meta-data: either (author and author_email) or (maintainer and maintainer_email) must be supplied

creating smalld-0.1.4.dev0+gcd30efb.d20200611
creating smalld-0.1.4.dev0+gcd30efb.d20200611\.github
creating smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows
creating smalld-0.1.4.dev0+gcd30efb.d20200611\examples
creating smalld-0.1.4.dev0+gcd30efb.d20200611\requirements
creating smalld-0.1.4.dev0+gcd30efb.d20200611\smalld
creating smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info
creating smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\resources
creating smalld-0.1.4.dev0+gcd30efb.d20200611\test
copying files to smalld-0.1.4.dev0+gcd30efb.d20200611...
copying .coveragerc -> smalld-0.1.4.dev0+gcd30efb.d20200611
copying .gitignore -> smalld-0.1.4.dev0+gcd30efb.d20200611
copying .python-version -> smalld-0.1.4.dev0+gcd30efb.d20200611
copying LICENSE -> smalld-0.1.4.dev0+gcd30efb.d20200611
copying README.md -> smalld-0.1.4.dev0+gcd30efb.d20200611
copying setup.py -> smalld-0.1.4.dev0+gcd30efb.d20200611
copying tox.ini -> smalld-0.1.4.dev0+gcd30efb.d20200611
copying .github\workflows\build.yml -> smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows
copying .github\workflows\coverage.yml -> smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows
copying .github\workflows\fmt.yml -> smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows
copying .github\workflows\install.yml -> smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows
copying .github\workflows\release.yml -> smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows
copying examples\cat_bot.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\examples
copying examples\ping_bot.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\examples
copying requirements\fmt.in -> smalld-0.1.4.dev0+gcd30efb.d20200611\requirements
copying requirements\fmt.txt -> smalld-0.1.4.dev0+gcd30efb.d20200611\requirements
copying requirements\test.in -> smalld-0.1.4.dev0+gcd30efb.d20200611\requirements
copying requirements\test.txt -> smalld-0.1.4.dev0+gcd30efb.d20200611\requirements
copying smalld\__init__.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld
copying smalld\exceptions.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld
copying smalld\gateway.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld
copying smalld\ratelimit.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld
copying smalld\smalld.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld
copying smalld\standard_listeners.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld
copying smalld.egg-info\PKG-INFO -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info
copying smalld.egg-info\SOURCES.txt -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info
copying smalld.egg-info\dependency_links.txt -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info
copying smalld.egg-info\requires.txt -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info
copying smalld.egg-info\top_level.txt -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info
copying smalld\resources\__init__.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\resources
copying smalld\resources\ratelimit_buckets -> smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\resources
copying test\test_gateway.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\test
copying test\test_httpclient.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\test
copying test\test_ratelimit.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\test
copying test\test_sanity.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\test
copying test\test_smalld.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\test
copying test\test_version.py -> smalld-0.1.4.dev0+gcd30efb.d20200611\test
Writing smalld-0.1.4.dev0+gcd30efb.d20200611\setup.cfg
creating '.tox\dist\smalld-0.1.4.dev0+gcd30efb.d20200611.zip' and adding 'smalld-0.1.4.dev0+gcd30efb.d20200611' to it
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.github'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\examples'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\requirements'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\test'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.coveragerc'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.gitignore'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.python-version'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\LICENSE'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\PKG-INFO'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\README.md'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\setup.cfg'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\setup.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\tox.ini'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows\build.yml'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows\coverage.yml'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows\fmt.yml'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows\install.yml'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\.github\workflows\release.yml'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\examples\cat_bot.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\examples\ping_bot.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\requirements\fmt.in'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\requirements\fmt.txt'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\requirements\test.in'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\requirements\test.txt'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\resources'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\exceptions.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\gateway.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\ratelimit.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\smalld.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\standard_listeners.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\__init__.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\resources\ratelimit_buckets'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld\resources\__init__.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info\dependency_links.txt'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info\PKG-INFO'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info\requires.txt'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info\SOURCES.txt'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\smalld.egg-info\top_level.txt'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\test\test_gateway.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\test\test_httpclient.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\test\test_ratelimit.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\test\test_sanity.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\test\test_smalld.py'
adding 'smalld-0.1.4.dev0+gcd30efb.d20200611\test\test_version.py'
removing 'smalld-0.1.4.dev0+gcd30efb.d20200611' (and everything under it)

GLOB finish: packaging  after 4.43 seconds
copying new sdistfile to 'C:\\Users\\write\\.tox\\distshare\\smalld-0.1.4.dev0+gcd30efb.d20200611.zip'
package .tmp\package\1\smalld-0.1.4.dev0+gcd30efb.d20200611.zip links to dist\smalld-0.1.4.dev0+gcd30efb.d20200611.zip (C:\Users\write\Desktop\smalld.py\.tox)
py38 start: getenv C:\Users\write\Desktop\smalld.py\.tox\py38
py38 cannot reuse: -r flag
py38 create: C:\Users\write\Desktop\smalld.py\.tox\py38
py38 uses C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe
  removing C:\Users\write\Desktop\smalld.py\.tox\py38
setting PATH=C:\Users\write\Desktop\smalld.py\.tox\py38\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Git\cmd;C:\Program Files (x86)\Python 3.8.1\Scripts;C:\Program Files\MongoDB\Server\4.2\bin\;C:\sqlite3;C:\Program Files\nodejs\;C:\Android\cmdline-tools\latest\bin;C:\Android\platform-tools;C:\flutter\bin;C:\Android\emulator;C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;C:\Users\write\AppData\Roaming\Python\Python38\Scripts;C:\Users\write\AppData\Local\Microsoft\WindowsApps;C:\Users\write\AppData\Local\GitHubDesktop\bin;C:\Users\write\AppData\Roaming\npm;C:\Users\write\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files (x86)\Python 3.8.1\Scripts;'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.2\bin;;C:\Users\write\AppData\Local\Microsoft\WindowsApps
[12200] C:\Users\write\Desktop\smalld.py\.tox$ 'C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' -m virtualenv --no-download --python 'C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' py38
Exception in thread Thread-6:
Traceback (most recent call last):
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\threading.py", line 932, in _bootstrap_inner  
    self.run()
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\via_app_data.py", line 52, in _install
    installer.install(creator.interpreter.version_info)
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 51, in install
    for name, module in self._console_scripts.items():
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 118, in _console_scripts
    entry_points = self._dist_info / "entry_points.txt"
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 105, in _dist_info
    raise RuntimeError("no dist info")  # pragma: no cover
RuntimeError: no dist info
created virtual environment CPython3.8.3.final.0-64 in 1662ms
  creator Venv(dest=C:\Users\write\Desktop\smalld.py\.tox\py38, clear=False, global=False, describe=CPython3Windows)
  seeder FromAppData(download=False, pip=latest, setuptools=latest, wheel=latest, via=copy, app_data_dir=C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypa\virtualenv\seed-app-data\v1.0.1)
  activators BashActivator,BatchActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator
py38 installdeps: -rrequirements/test.txt
setting PATH=C:\Users\write\Desktop\smalld.py\.tox\py38\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Git\cmd;C:\Program Files (x86)\Python 3.8.1\Scripts;C:\Program Files\MongoDB\Server\4.2\bin\;C:\sqlite3;C:\Program Files\nodejs\;C:\Android\cmdline-tools\latest\bin;C:\Android\platform-tools;C:\flutter\bin;C:\Android\emulator;C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;C:\Users\write\AppData\Roaming\Python\Python38\Scripts;C:\Users\write\AppData\Local\Microsoft\WindowsApps;C:\Users\write\AppData\Local\GitHubDesktop\bin;C:\Users\write\AppData\Roaming\npm;C:\Users\write\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files (x86)\Python 3.8.1\Scripts;'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.2\bin;;C:\Users\write\AppData\Local\Microsoft\WindowsApps
[11220] C:\Users\write\Desktop\smalld.py$ 'C:\Users\write\Desktop\smalld.py\.tox\py38\Scripts\python.EXE' -m pip install -rrequirements/test.txt
Traceback (most recent call last):
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\__main__.py", line 26, in <module>
    sys.exit(_main())
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\cli\main.py", line 73, in main
    command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\commands\__init__.py", line 104, in create_command
    module = importlib.import_module(module_path)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\commands\install.py", line 24, in <module>
    from pip._internal.cli.req_command import RequirementCommand, with_cleanup
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\cli\req_command.py", line 16, in <module>
    from pip._internal.index.package_finder import PackageFinder
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\index\package_finder.py", line 21, in <module>
    from pip._internal.index.collector import parse_links
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\index\collector.py", line 14, in <module>
    from pip._vendor import html5lib, requests
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_vendor\html5lib\__init__.py", line 25, in <module>
    from .html5parser import HTMLParser, parse, parseFragment
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_vendor\html5lib\html5parser.py", line 7, in <module>
    from . import _inputstream
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_vendor\html5lib\_inputstream.py", line 9, in <module>
    from pip._vendor import webencodings
ImportError: cannot import name 'webencodings' from 'pip._vendor' (C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_vendor\__init__.py) 
ERROR: invocation failed (exit code 1)
ERROR: could not install deps [-rrequirements/test.txt]; v = InvocationError("'C:\\Users\\write\\Desktop\\smalld.py\\.tox\\py38\\Scripts\\python.EXE' -m 
pip install -rrequirements/test.txt", 1)
py38 finish: getenv C:\Users\write\Desktop\smalld.py\.tox\py38 after 6.05 seconds
_______________________________________________________________________ summary ________________________________________________________________________ 
ERROR:   py38: could not install deps [-rrequirements/test.txt]; v = InvocationError("'C:\\Users\\write\\Desktop\\smalld.py\\.tox\\py38\\Scripts\\python.EXE' -m pip install -rrequirements/test.txt", 1)
cleanup C:\Users\write\Desktop\smalld.py\.tox\.tmp\package\1\smalld-0.1.4.dev0+gcd30efb.d20200611.zip

[gaborbernat]

Please use isolated builds, as described in https://tox.readthedocs.io/en/latest/example/package.html?highlight=isolated%20build#setuptools

[NevilleMthw]

Okay so I did create a separate pyproject.toml file and made the change in the tox.ini file as well but there's still no change in the error for installing the deps.

The pyproject.toml file:

[build-system]
requires = [
    "setuptools >= 35.0.2",
    "setuptools_scm >= 2.0.0, <3"
]
build-backend = "setuptools.build_meta"

The tox.ini file:

[tox]
envlist=clean,py{36,37,38},report
skip_missing_interpreters=True
isolated_build = True

[testenv]
commands=
  coverage run --append -m pytest
  coverage report
deps=-r requirements/test.txt

[testenv:report]
basepython=python3.8
skip_install=true
deps=-r requirements/test.txt
commands=
  coverage report
  coverage xml 

[testenv:clean]
basepython=python3.8
skip_install=True
deps=-r requirements/test.txt
commands=coverage erase

[testenv:run]
basepython=python3.8
commands=python {posargs}
passenv=SMALLD_TOKEN
deps=

[testenv:fmt]
basepython=python3.8
skip_install=True
commands=
  autoflake -ri --remove-all-unused-imports --ignore-init-module-imports {env:PY_FILES}
  isort -rc {env:PY_FILES}
  black -t py36 {env:PY_FILES}
  sort -o .gitignore .gitignore
deps=-r requirements/fmt.txt
whitelist_externals=sort
setenv=
  LC_ALL=C.UTF-8
  PY_FILES=setup.py smalld/ test/ examples/

[testenv:pip-compile]
basepython=python3.6
skip_install=True
commands=
  pip-compile --output-file=requirements/fmt.txt requirements/fmt.in
  pip-compile --output-file=requirements/test.txt requirements/test.in
deps=pip-tools==5.1.2
setenv=
  LC_ALL=C.UTF-8
  LANG=C.UTF-8

What if the error is fixed but stored as cache, just a guess?

[gaborbernat]

There should be change, can you post again the output? What tox version are you using?

[NevilleMthw]

I am using the Tox version, 3.15.1.

The output shows as:

using tox.ini: C:\Users\write\Desktop\smalld.py\tox.ini (pid 8924)
  removing C:\Users\write\Desktop\smalld.py\.tox\log
using tox-3.15.1 from C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\tox\__init__.py (pid 8924)
.package start: getenv C:\Users\write\Desktop\smalld.py\.tox\.package
.package cannot reuse: -r flag
.package create: C:\Users\write\Desktop\smalld.py\.tox\.package
C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe (C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe) is {'executable': 'C:\\Users\\write\\AppData\\Local\\Microsoft\\WindowsApps\\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\\python.exe', 'name': 'python', 'version_info': [3, 8, 3, 'final', 0], 'version': '3.8.3 (tags/v3.8.3:6f8c832, May 13 2020, 22:37:02) [MSC v.1924 64 bit (AMD64)]', 'is_64': True, 'sysplatform': 'win32'}
.package uses C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe
  removing C:\Users\write\Desktop\smalld.py\.tox\.package
setting PATH=C:\Users\write\Desktop\smalld.py\.tox\.package\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program 
Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Git\cmd;C:\Program Files (x86)\Python 3.8.1\Scripts;C:\Program Files\MongoDB\Server\4.2\bin\;C:\sqlite3;C:\Program Files\nodejs\;C:\Android\cmdline-tools\latest\bin;C:\Android\platform-tools;C:\flutter\bin;C:\Android\emulator;C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;C:\Users\write\AppData\Roaming\Python\Python38\Scripts;C:\Users\write\AppData\Local\Microsoft\WindowsApps;C:\Users\write\AppData\Local\GitHubDesktop\bin;C:\Users\write\AppData\Roaming\npm;C:\Users\write\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files (x86)\Python 3.8.1\Scripts;'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.2\bin;;C:\Users\write\AppData\Local\Microsoft\WindowsApps
[11688] C:\Users\write\Desktop\smalld.py\.tox$ 'C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' -m virtualenv --no-download --python 'C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' .package
Exception in thread Thread-6:
Traceback (most recent call last):
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\threading.py", line 932, in _bootstrap_inner  
    self.run()
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\via_app_data.py", line 52, in _install
    installer.install(creator.interpreter.version_info)
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 51, in install
    for name, module in self._console_scripts.items():
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 118, in _console_scripts
    entry_points = self._dist_info / "entry_points.txt"
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 105, in _dist_info
    raise RuntimeError("no dist info")  # pragma: no cover
RuntimeError: no dist info
created virtual environment CPython3.8.3.final.0-64 in 1838ms
  creator Venv(dest=C:\Users\write\Desktop\smalld.py\.tox\.package, clear=False, global=False, describe=CPython3Windows)
  seeder FromAppData(download=False, pip=latest, setuptools=latest, wheel=latest, via=copy, app_data_dir=C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypa\virtualenv\seed-app-data\v1.0.1)
  activators BashActivator,BatchActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator
.package installdeps: setuptools==47.1.1, setuptools_scm==3.3.3
setting PATH=C:\Users\write\Desktop\smalld.py\.tox\.package\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program 
Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Git\cmd;C:\Program Files (x86)\Python 3.8.1\Scripts;C:\Program Files\MongoDB\Server\4.2\bin\;C:\sqlite3;C:\Program Files\nodejs\;C:\Android\cmdline-tools\latest\bin;C:\Android\platform-tools;C:\flutter\bin;C:\Android\emulator;C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;C:\Users\write\AppData\Roaming\Python\Python38\Scripts;C:\Users\write\AppData\Local\Microsoft\WindowsApps;C:\Users\write\AppData\Local\GitHubDesktop\bin;C:\Users\write\AppData\Roaming\npm;C:\Users\write\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files (x86)\Python 3.8.1\Scripts;'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.2\bin;;C:\Users\write\AppData\Local\Microsoft\WindowsApps
[7520] C:\Users\write\Desktop\smalld.py$ 'C:\Users\write\Desktop\smalld.py\.tox\.package\Scripts\python.EXE' -m pip install setuptools==47.1.1 setuptools_scm==3.3.3
Traceback (most recent call last):
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\__main__.py", line 26, in <module>
    sys.exit(_main())
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_internal\cli\main.py", line 73, in main
    command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_internal\commands\__init__.py", line 104, in create_command
    module = importlib.import_module(module_path)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_internal\commands\install.py", line 24, in <module>
    from pip._internal.cli.req_command import RequirementCommand, with_cleanup
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_internal\cli\req_command.py", line 16, in <module>
    from pip._internal.index.package_finder import PackageFinder
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_internal\index\package_finder.py", line 21, in <module>
    from pip._internal.index.collector import parse_links
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_internal\index\collector.py", line 14, in <module>
    from pip._vendor import html5lib, requests
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_vendor\html5lib\__init__.py", line 25, in <module>
    from .html5parser import HTMLParser, parse, parseFragment
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_vendor\html5lib\html5parser.py", line 7, in <module>
    from . import _inputstream
  File "C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_vendor\html5lib\_inputstream.py", line 9, in <module>
    from pip._vendor import webencodings
ImportError: cannot import name 'webencodings' from 'pip._vendor' (C:\Users\write\Desktop\smalld.py\.tox\.package\lib\site-packages\pip\_vendor\__init__.py)
ERROR: invocation failed (exit code 1)
ERROR: could not install deps [setuptools==47.1.1, setuptools_scm==3.3.3]; v = InvocationError("'C:\\Users\\write\\Desktop\\smalld.py\\.tox\\.package\\Scripts\\python.EXE' -m pip install setuptools==47.1.1 setuptools_scm==3.3.3", 1)
.package finish: getenv C:\Users\write\Desktop\smalld.py\.tox\.package after 6.38 seconds
.package start: get-build-requires C:\Users\write\Desktop\smalld.py\.tox\.package
setting PATH=C:\Users\write\Desktop\smalld.py\.tox\.package\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program 
Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Git\cmd;C:\Program Files (x86)\Python 3.8.1\Scripts;C:\Program Files\MongoDB\Server\4.2\bin\;C:\sqlite3;C:\Program Files\nodejs\;C:\Android\cmdline-tools\latest\bin;C:\Android\platform-tools;C:\flutter\bin;C:\Android\emulator;C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;C:\Users\write\AppData\Roaming\Python\Python38\Scripts;C:\Users\write\AppData\Local\Microsoft\WindowsApps;C:\Users\write\AppData\Local\GitHubDesktop\bin;C:\Users\write\AppData\Roaming\npm;C:\Users\write\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files (x86)\Python 3.8.1\Scripts;'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.2\bin;;C:\Users\write\AppData\Local\Microsoft\WindowsApps
[12464] C:\Users\write\Desktop\smalld.py$ 'C:\Users\write\Desktop\smalld.py\.tox\.package\Scripts\python' 'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\tox\helper\build_requires.py' setuptools.build_meta '' >.tox\.package\log\.package-0.log
.package finish: get-build-requires C:\Users\write\Desktop\smalld.py\.tox\.package after 1.35 seconds
.package start: perform-isolated-build C:\Users\write\Desktop\smalld.py\.tox\.package
setting PATH=C:\Users\write\Desktop\smalld.py\.tox\.package\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program 
Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Git\cmd;C:\Program Files (x86)\Python 3.8.1\Scripts;C:\Program Files\MongoDB\Server\4.2\bin\;C:\sqlite3;C:\Program Files\nodejs\;C:\Android\cmdline-tools\latest\bin;C:\Android\platform-tools;C:\flutter\bin;C:\Android\emulator;C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;C:\Users\write\AppData\Roaming\Python\Python38\Scripts;C:\Users\write\AppData\Local\Microsoft\WindowsApps;C:\Users\write\AppData\Local\GitHubDesktop\bin;C:\Users\write\AppData\Roaming\npm;C:\Users\write\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files (x86)\Python 3.8.1\Scripts;'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.2\bin;;C:\Users\write\AppData\Local\Microsoft\WindowsApps
[12168] C:\Users\write\Desktop\smalld.py$ 'C:\Users\write\Desktop\smalld.py\.tox\.package\Scripts\python' 'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\tox\helper\build_isolated.py' '.tox\dist' setuptools.build_meta '' >.tox\.package\log\.package-1.log
running sdist
running egg_info
writing smalld.egg-info\PKG-INFO
writing dependency_links to smalld.egg-info\dependency_links.txt
writing requirements to smalld.egg-info\requires.txt
writing top-level names to smalld.egg-info\top_level.txt
reading manifest file 'smalld.egg-info\SOURCES.txt'
writing manifest file 'smalld.egg-info\SOURCES.txt'
running check
creating smalld-0.0.0
creating smalld-0.0.0\.github
creating smalld-0.0.0\.github\workflows
creating smalld-0.0.0\examples
creating smalld-0.0.0\requirements
creating smalld-0.0.0\smalld
creating smalld-0.0.0\smalld.egg-info
creating smalld-0.0.0\smalld\resources
creating smalld-0.0.0\test
copying files to smalld-0.0.0...
copying .coveragerc -> smalld-0.0.0
copying .gitignore -> smalld-0.0.0
copying .python-version -> smalld-0.0.0
copying LICENSE -> smalld-0.0.0
copying README.md -> smalld-0.0.0
copying pyproject.toml -> smalld-0.0.0
copying setup.py -> smalld-0.0.0
copying tox.ini -> smalld-0.0.0
copying .github\workflows\build.yml -> smalld-0.0.0\.github\workflows
copying .github\workflows\coverage.yml -> smalld-0.0.0\.github\workflows
copying .github\workflows\fmt.yml -> smalld-0.0.0\.github\workflows
copying .github\workflows\install.yml -> smalld-0.0.0\.github\workflows
copying .github\workflows\release.yml -> smalld-0.0.0\.github\workflows
copying examples\cat_bot.py -> smalld-0.0.0\examples
copying examples\ping_bot.py -> smalld-0.0.0\examples
copying requirements\fmt.in -> smalld-0.0.0\requirements
copying requirements\fmt.txt -> smalld-0.0.0\requirements
copying requirements\test.in -> smalld-0.0.0\requirements
copying requirements\test.txt -> smalld-0.0.0\requirements
copying smalld\__init__.py -> smalld-0.0.0\smalld
copying smalld\exceptions.py -> smalld-0.0.0\smalld
copying smalld\gateway.py -> smalld-0.0.0\smalld
copying smalld\ratelimit.py -> smalld-0.0.0\smalld
copying smalld\smalld.py -> smalld-0.0.0\smalld
copying smalld\standard_listeners.py -> smalld-0.0.0\smalld
copying smalld.egg-info\PKG-INFO -> smalld-0.0.0\smalld.egg-info
copying smalld.egg-info\SOURCES.txt -> smalld-0.0.0\smalld.egg-info
copying smalld.egg-info\dependency_links.txt -> smalld-0.0.0\smalld.egg-info
copying smalld.egg-info\requires.txt -> smalld-0.0.0\smalld.egg-info
copying smalld.egg-info\top_level.txt -> smalld-0.0.0\smalld.egg-info
copying smalld\resources\__init__.py -> smalld-0.0.0\smalld\resources
copying smalld\resources\ratelimit_buckets -> smalld-0.0.0\smalld\resources
copying test\test_gateway.py -> smalld-0.0.0\test
copying test\test_httpclient.py -> smalld-0.0.0\test
copying test\test_ratelimit.py -> smalld-0.0.0\test
copying test\test_sanity.py -> smalld-0.0.0\test
copying test\test_smalld.py -> smalld-0.0.0\test
copying test\test_version.py -> smalld-0.0.0\test
Writing smalld-0.0.0\setup.cfg
Creating tar archive
removing 'smalld-0.0.0' (and everything under it)
C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\distutils\dist.py:274: UserWarning: Unknown distribution option: 'use_scm_version'
  warnings.warn(msg)
smalld-0.0.0.tar.gz

.package finish: perform-isolated-build C:\Users\write\Desktop\smalld.py\.tox\.package after 2.18 seconds
copying new sdistfile to 'C:\\Users\\write\\.tox\\distshare\\smalld-0.0.0.tar.gz'
package .tmp\package\1\smalld-0.0.0.tar.gz links to dist\smalld-0.0.0.tar.gz (C:\Users\write\Desktop\smalld.py\.tox)
py38 start: getenv C:\Users\write\Desktop\smalld.py\.tox\py38
py38 cannot reuse: -r flag
py38 create: C:\Users\write\Desktop\smalld.py\.tox\py38
py38 uses C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe
  removing C:\Users\write\Desktop\smalld.py\.tox\py38
setting PATH=C:\Users\write\Desktop\smalld.py\.tox\py38\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Git\cmd;C:\Program Files (x86)\Python 3.8.1\Scripts;C:\Program Files\MongoDB\Server\4.2\bin\;C:\sqlite3;C:\Program Files\nodejs\;C:\Android\cmdline-tools\latest\bin;C:\Android\platform-tools;C:\flutter\bin;C:\Android\emulator;C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;C:\Users\write\AppData\Roaming\Python\Python38\Scripts;C:\Users\write\AppData\Local\Microsoft\WindowsApps;C:\Users\write\AppData\Local\GitHubDesktop\bin;C:\Users\write\AppData\Roaming\npm;C:\Users\write\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files (x86)\Python 3.8.1\Scripts;'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.2\bin;;C:\Users\write\AppData\Local\Microsoft\WindowsApps
[5812] C:\Users\write\Desktop\smalld.py\.tox$ 'C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' -m virtualenv --no-download --python 'C:\Users\write\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' py38
Exception in thread Thread-6:
Traceback (most recent call last):
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\threading.py", line 932, in _bootstrap_inner  
    self.run()
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\via_app_data.py", line 52, in _install
    installer.install(creator.interpreter.version_info)
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 51, in install
    for name, module in self._console_scripts.items():
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 118, in _console_scripts
    entry_points = self._dist_info / "entry_points.txt"
  File "C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\virtualenv\seed\via_app_data\pip_install\base.py", line 105, in _dist_info
    raise RuntimeError("no dist info")  # pragma: no cover
RuntimeError: no dist info
created virtual environment CPython3.8.3.final.0-64 in 1552ms
  creator Venv(dest=C:\Users\write\Desktop\smalld.py\.tox\py38, clear=False, global=False, describe=CPython3Windows)
  seeder FromAppData(download=False, pip=latest, setuptools=latest, wheel=latest, via=copy, app_data_dir=C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypa\virtualenv\seed-app-data\v1.0.1)
  activators BashActivator,BatchActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator
py38 installdeps: -rrequirements/test.txt
setting PATH=C:\Users\write\Desktop\smalld.py\.tox\py38\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Git\cmd;C:\Program Files (x86)\Python 3.8.1\Scripts;C:\Program Files\MongoDB\Server\4.2\bin\;C:\sqlite3;C:\Program Files\nodejs\;C:\Android\cmdline-tools\latest\bin;C:\Android\platform-tools;C:\flutter\bin;C:\Android\emulator;C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;C:\Users\write\AppData\Roaming\Python\Python38\Scripts;C:\Users\write\AppData\Local\Microsoft\WindowsApps;C:\Users\write\AppData\Local\GitHubDesktop\bin;C:\Users\write\AppData\Roaming\npm;C:\Users\write\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files (x86)\Python 3.8.1\Scripts;'C:\Users\write\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\Scripts;;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.2\bin;;C:\Users\write\AppData\Local\Microsoft\WindowsApps
[8736] C:\Users\write\Desktop\smalld.py$ 'C:\Users\write\Desktop\smalld.py\.tox\py38\Scripts\python.EXE' -m pip install -rrequirements/test.txt
Traceback (most recent call last):
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\__main__.py", line 26, in <module>
    sys.exit(_main())
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\cli\main.py", line 73, in main
    command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\commands\__init__.py", line 104, in create_command
    module = importlib.import_module(module_path)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\commands\install.py", line 24, in <module>
    from pip._internal.cli.req_command import RequirementCommand, with_cleanup
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\cli\req_command.py", line 16, in <module>
    from pip._internal.index.package_finder import PackageFinder
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\index\package_finder.py", line 21, in <module>
    from pip._internal.index.collector import parse_links
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_internal\index\collector.py", line 14, in <module>
    from pip._vendor import html5lib, requests
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_vendor\html5lib\__init__.py", line 25, in <module>
    from .html5parser import HTMLParser, parse, parseFragment
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_vendor\html5lib\html5parser.py", line 7, in <module>
    from . import _inputstream
  File "C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_vendor\html5lib\_inputstream.py", line 9, in <module>
    from pip._vendor import webencodings
ImportError: cannot import name 'webencodings' from 'pip._vendor' (C:\Users\write\Desktop\smalld.py\.tox\py38\lib\site-packages\pip\_vendor\__init__.py) 
ERROR: invocation failed (exit code 1)
ERROR: could not install deps [-rrequirements/test.txt]; v = InvocationError("'C:\\Users\\write\\Desktop\\smalld.py\\.tox\\py38\\Scripts\\python.EXE' -m 
pip install -rrequirements/test.txt", 1)
py38 finish: getenv C:\Users\write\Desktop\smalld.py\.tox\py38 after 4.45 seconds
_______________________________________________________________________ summary ________________________________________________________________________
ERROR:   py38: could not install deps [-rrequirements/test.txt]; v = InvocationError("'C:\\Users\\write\\Desktop\\smalld.py\\.tox\\py38\\Scripts\\python.EXE' -m pip install -rrequirements/test.txt", 1)
cleanup C:\Users\write\Desktop\smalld.py\.tox\.tmp\package\1\smalld-0.0.0.tar.gz

[gaborbernat]

There's something broken with the virtualenv alongside tox. Can you try to reinstall tox with -m pip install tox -U --force-reinstall and also then do -m virtualenv --reset-app-data venv afterwards? Feel free to delete venv created at this point. Run again tox and see if it changes.

[NevilleMthw]

Yeah I did both of those commands, it doesn't change anything. I restarted the IDE, checked the PATH variables for Python and even cloned the repo again to see if there was any change.

[gaborbernat]

The underlying issues seem to be a virtualenv bug; there is a pip has no dist-info within... I'm fairly certain that pypa/virtualenv#1841 will fix this, but that's probably a week away from release.

[NevilleMthw]

Oh okay thank you, will keep a lookout for it.