Inadvertently committed a removal of the '--check' flag for the linter.

Also removed unnecessary whitespace lines.

Co-authored-by: Claudio Jolowicz <[email protected]>

nox/sessions.py

@@ -290,7 +290,6 @@ def run_always(
             do not have a virtualenv.
         :type external: bool
         """
-
         if self._runner.global_config.no_install:
             logger.info("Skipping run_always, as --no-install is set.")
             return None
@@ -360,7 +359,6 @@ def conda_install(
 
         .. _conda install:
         """
-
         venv = self._runner.venv
 
         prefix_args = ()  # type: Tuple[str, ...]
@@ -432,7 +430,6 @@ def install(self, *args: str, **kwargs: Any) -> None:
 
         .. _pip: https://pip.readthedocs.org
         """
-
         venv = self._runner.venv
 
         if not isinstance(
@@ -532,7 +529,6 @@ def envdir(self) -> str:
         return _normalize_path(self.global_config.envdir, self.friendly_name)
 
     def _create_venv(self) -> None:
-
         backend = (
             self.global_config.force_venv_backend
             or self.func.venv_backend

nox/virtualenv.py

@@ -54,7 +54,6 @@ class ProcessEnv:
     def __init__(self, bin_paths: None = None, env: Mapping[str, str] = None) -> None:
         self._bin_paths = bin_paths
         self.env = os.environ.copy()
-
         self._venv_created = False
 
         if env is not None:

noxfile.py

@@ -97,7 +97,7 @@ def lint(session):
         "nox",
     )
     files = ["nox", "tests", "noxfile.py", "setup.py"]
-    session.run("black", *files)
+    session.run("black", "--check", *files)
     session.run("isort", "--check", "--recursive", *files)
     session.run("flake8", "nox", *files)
 

tests/test_sessions.py

@@ -65,7 +65,6 @@ class MockableSession(nox.sessions.Session):
     Inherit session, but without __slots__ defined, and do nothing else
     to enable testing of Session with mocks.
     """
-
     pass
 
 
@@ -584,7 +583,6 @@ def test_session_no_install(
     ):
         caplog.set_level(logging.INFO)
         session, runner = self.make_session_and_runner()
-
         runner.global_config.no_install = no_install
         runner.venv._venv_created = venv_is_created