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How to use venv_lookup method in tox

Best Python code snippet using tox_python

_pytestplugin.py

Source:_pytestplugin.py

...377                )378            assert False  # pragma: no cover379    monkeypatch.setattr(CreationConfig, "readconfig", ProxyCurrentPython.readconfig)380    # provide as Python the current python executable381    def venv_lookup(venv, name):382        assert name == "python"383        venv.envconfig.envdir = py.path.local(sys.executable).join("..", "..")384        return sys.executable385    monkeypatch.setattr(VirtualEnv, "_venv_lookup", venv_lookup)386    # don't allow overriding the tox config data for the host Python387    def finish_venv(self):388        return389    monkeypatch.setattr(VirtualEnv, "finish", finish_venv)390    # we lie that it's an environment with no packages in it391    @tox.hookimpl392    def tox_runenvreport(venv, action):393        return []394    monkeypatch.setattr(venv, "tox_runenvreport", tox_runenvreport)395    # intercept the build session to save it and we intercept the popen invocations...

plugin.py

Source:plugin.py

...56    # Try a simple fallback57    if sp.call(['conda', '-h'], stdout=sp.PIPE, stderr=sp.PIPE) == 0:58        return 'conda'59    raise RuntimeError("Can't locate conda executable")60def venv_lookup(self, name):61    # In Conda environments on Windows, the Python executable is installed in62    # the top-level environment directory, as opposed to virtualenvs, where it63    # is installed in the Scripts directory. Tox assumes that looking in the64    # Scripts directory is sufficient, which is why this workaround is required.65    paths = [self.envconfig.envdir, self.envconfig.envbindir]66    return py.path.local.sysfind(name, paths=paths)67@hookimpl68def tox_testenv_create(venv, action):69    venv.session.make_emptydir(venv.path)70    basepath = venv.path.dirpath()71    # Check for venv.envconfig.sitepackages and venv.config.alwayscopy here72    conda_exe = find_conda()73    venv.envconfig.conda_exe = conda_exe74    envdir = venv.envconfig.envdir...

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