ignore poetry in tox

based on discussion here:
python-poetry/poetry#1941

tox.ini

@@ -21,20 +21,23 @@ setenv =
     PYTHONWARNINGS = {env:PYTHONWARNINGS:once::DeprecationWarning}
 passenv = *
 deps =
-    poetry>=1,<2
-commands_pre =
-    asyncio: poetry install -v
-    uvloop: poetry install -E uvloop -v
+    pytest>=6,<7
+    pytest-asyncio>=0.14,<1
+    pytest-cov>=2.10,<3
+    coverage>=5.2,<6
+    hypothesis>=5.35,<6
+    aiosmtpd>=1.2,<2
+    uvloop: uvloop>=0.13,<0.15
 commands =
-    asyncio: poetry run py.test --basetemp="{envtmpdir}" --cov --cov-report= --cov-config=tox.ini --junitxml=test-results/{envname}/results.xml --event-loop=asyncio --bind-addr={env:AIOSMTPLIB_TEST_BIND_ADDR:localhost} --hypothesis-profile {env:HYPOTHESIS_PROFILE:dev} {posargs:--tb=short}
-    uvloop: poetry run py.test --basetemp="{envtmpdir}" --cov --cov-report= --cov-config=tox.ini --junitxml=test-results/{envname}/results.xml --event-loop=uvloop --bind-addr={env:AIOSMTPLIB_TEST_BIND_ADDR:localhost} --hypothesis-profile {env:HYPOTHESIS_PROFILE:dev} {posargs:--tb=short}
+    asyncio: python -m pytest --basetemp="{envtmpdir}" --cov --cov-report= --cov-config=tox.ini --junitxml=test-results/{envname}/results.xml --event-loop=asyncio --bind-addr={env:AIOSMTPLIB_TEST_BIND_ADDR:localhost} --hypothesis-profile {env:HYPOTHESIS_PROFILE:dev} {posargs:--tb=short}
+    uvloop: python -m pytest --basetemp="{envtmpdir}" --cov --cov-report= --cov-config=tox.ini --junitxml=test-results/{envname}/results.xml --event-loop=uvloop --bind-addr={env:AIOSMTPLIB_TEST_BIND_ADDR:localhost} --hypothesis-profile {env:HYPOTHESIS_PROFILE:dev} {posargs:--tb=short}
 depends =
     py{3.6,3.7,3.8,3.9,3.10}-{asyncio,uvloop}: clean
     pypy3-asyncio: clean
     coverage: py3.6-asyncio, py3.7-asyncio, py3.8-asyncio, py3.9-asyncio, py3.10-asyncio, py3.6-uvloop, py3.7-uvloop, py3.8-uvloop, py3.9-uvloop, py3.10-uvloop, pypy3-asyncio
 
 [testenv:clean]
-deps = coverage>=5,<6
+deps =coverage>=5,<6
 skip_install = true
 setenv =
     COVERAGE_FILE = .coverage
@@ -44,22 +47,22 @@ commands =
 
 [testenv:docs]
 basepython = python3.8
-skip_install = true
+deps =
+    {[testenv]deps}
+    sphinx>=3,<4
+    sphinx_autodoc_typehints>=1.7,<2
 changedir = docs
-commands_pre = poetry install -E docs -v
 commands =
-    poetry run sphinx-build {posargs:-nWT} -b doctest -d {envtmpdir}/doctrees . {envtmpdir}/html
-    poetry run sphinx-build {posargs:-nWT} -b dummy -d {envtmpdir}/doctrees .  {envtmpdir}/html
+    sphinx-build {posargs:-nWT} -b doctest -d {envtmpdir}/doctrees . {envtmpdir}/html
+    sphinx-build {posargs:-nWT} -b dummy -d {envtmpdir}/doctrees .  {envtmpdir}/html
 
 [testenv:lint]
 deps =
     pre-commit
-    {[testenv]deps}
 basepython = python3.8
 skip_install = true
 commands =
     pre-commit run --all-files --show-diff-on-failure
-    poetry check
 
 [testenv:coverage]
 deps = coverage>=5,<6