Upgrade syntax for Python 3.10+

Author: hugovk

ci/bootstrap.py

@@ -57,7 +57,7 @@ def main():
         # This uses sys.executable the same way that the call in
         # cookiecutter-pylibrary/hooks/post_gen_project.py
         # invokes this bootstrap.py itself.
-        for line in subprocess.check_output([sys.executable, '-m', 'tox', '--listenvs'], universal_newlines=True).splitlines()
+        for line in subprocess.check_output([sys.executable, '-m', 'tox', '--listenvs'], text=True).splitlines()
     ]
     tox_environments = [line for line in tox_environments if line.startswith('py')]
     for template in templates_path.rglob('*'):

src/pytest_benchmark/fixture.py

@@ -19,7 +19,7 @@
 from .utils import slugify
 
 statistics: typing.Any
-statistics_error: typing.Optional[str] = None
+statistics_error: str | None = None
 try:
     import statistics
 except (ImportError, SyntaxError):

src/pytest_benchmark/utils.py

@@ -127,7 +127,7 @@ def in_any_parent(name, path=None):
 
 
 def subprocess_output(cmd):
-    return check_output(cmd.split(), stderr=subprocess.STDOUT, universal_newlines=True).strip()
+    return check_output(cmd.split(), stderr=subprocess.STDOUT, text=True).strip()
 
 
 def get_commit_info(project_name=None):

tests/test_storage.py

@@ -36,7 +36,7 @@
 list(normalize_stats(bench['stats']) for bench in JSON_DATA['benchmarks'])
 
 
-class Namespace(object):
+class Namespace:
     def __init__(self, **kwargs):
         self.__dict__.update(kwargs)