old_contents: import nox_poetry
  
  
  @nox_poetry.session(python=["3.6", "3.7", "3.8", "3.9"])
  def test(session: nox_poetry.Session):
      session.install(".")
      session.install("pytest", "pytest-cov", "pytest-timeout")
      session.env["COVERAGE_FILE"] = f".coverage.{session.python}"
      session.run("python", "-m", "pytest", "--cov", "parsita")
  
  
  @nox_poetry.session(venv_backend="none")
  def coverage(session: nox_poetry.Session):
      session.install("coverage[toml]")
      session.run("coverage", "combine")
      session.run("coverage", "html")
      session.run("coverage", "xml")
  
  
  @nox_poetry.session(venv_backend="none")
  def black(session: nox_poetry.Session):
      session.install("black")
      session.run("black", "--check", ".")
  
  
  @nox_poetry.session(venv_backend="none")
  def isort(session: nox_poetry.Session):
      session.install("isort")
      session.run("isort", "--check", ".")
  
  
  @nox_poetry.session(venv_backend="none")
  def lint(session: nox_poetry.Session):
      session.install("flakehell", "flake8", "pep8-naming")
      session.run("flakehell", "lint", "src", "tests", "examples")
  
new_contents: import nox_poetry
  
  
  @nox_poetry.session(python=["3.7", "3.8", "3.9"])
  def test(session: nox_poetry.Session):
      session.install(".")
      session.install("pytest", "pytest-cov", "pytest-timeout")
      session.env["COVERAGE_FILE"] = f".coverage.{session.python}"
      session.run("python", "-m", "pytest", "--cov", "parsita")
  
  
  @nox_poetry.session(venv_backend="none")
  def coverage(session: nox_poetry.Session):
      session.install("coverage[toml]")
      session.run("coverage", "combine")
      session.run("coverage", "html")
      session.run("coverage", "xml")
  
  
  @nox_poetry.session(venv_backend="none")
  def black(session: nox_poetry.Session):
      session.install("black")
      session.run("black", "--check", ".")
  
  
  @nox_poetry.session(venv_backend="none")
  def isort(session: nox_poetry.Session):
      session.install("isort")
      session.run("isort", "--check", ".")
  
  
  @nox_poetry.session(venv_backend="none")
  def lint(session: nox_poetry.Session):
      session.install("flakehell", "flake8", "pep8-naming")
      session.run("flakehell", "lint", "src", "tests", "examples")
  
subject: Remove Python 3.6 from noxfile.py