Fix flake8 warnings

Signed-off-by: Jean-Christophe Morin <[email protected]>

Author: JeanChristopheMorinPerso

src/rez/cli/_entry_points.py

@@ -60,8 +60,10 @@ def decorator(fn):
         return fn
     return decorator
 
+
 ### Entry points
 
+
 @register("rez")
 def run_rez():
     from rez.cli._main import run

src/rez/shells.py

@@ -10,7 +10,6 @@
 from rez.utils.which import which
 from rez.utils.logging_ import print_warning
 from rez.utils.execution import Popen
-from rez.system import system
 from rez.exceptions import RezSystemError
 from rez.rex import EscapedString
 from rez.config import config

src/rezplugins/shell/_utils/powershell_base.py

@@ -9,7 +9,6 @@
 from rez.config import config
 from rez.rex import RexExecutor, OutputStyle, EscapedString
 from rez.shells import Shell
-from rez.system import system
 from rez.utils.platform_ import platform_
 from rez.utils.execution import Popen
 from rez.util import shlex_join

src/rezplugins/shell/cmd.py

@@ -8,7 +8,6 @@
 from rez.config import config
 from rez.rex import RexExecutor, expandable, OutputStyle, EscapedString
 from rez.shells import Shell
-from rez.system import system
 from rez.utils.execution import Popen
 from rez.utils.platform_ import platform_
 from ._utils.windows import to_windows_path, get_syspaths_from_registry