Hi Daniel, On Thu, 16 Mar 2023 15:06:36 -0700 Daniel Latypov <dlatypov@xxxxxxxxxx> wrote: > E.g. for subprocess.Popen, it can be opened in `text=True` mode where it > returns strings, or `text=False` where it returns bytes. > To differentiate, you can annotate types as `Popen[str]` or > `Popen[bytes]`. > > This patch should add subscripts in all the places we were missing them. I just found this patch is in the latest mainline tree, and it causes kunit failure on my test machine like below. $ python3 --version Python 3.8.10 $ $ ./tools/testing/kunit/kunit.py run --build_dir ../kunit.out/ Traceback (most recent call last): File "./tools/testing/kunit/kunit.py", line 24, in <module> import kunit_kernel File "/home/sjpark/linux/tools/testing/kunit/kunit_kernel.py", line 42, in <module> class LinuxSourceTreeOperations: File "/home/sjpark/linux/tools/testing/kunit/kunit_kernel.py", line 95, in LinuxSourceTreeOperations def start(self, params: List[str], build_dir: str) -> subprocess.Popen[str]: TypeError: 'type' object is not subscriptable $ I further confirmed reverting this patch makes it run again. Do you have any idea? Thanks, SJ > > Reported-by: Johannes Berg <johannes.berg@xxxxxxxxx> > Link: https://lore.kernel.org/linux-kselftest/20230315105055.9b2be0153625.I7a2cb99b95dff216c0feed4604255275e0b156a7@changeid/ > Signed-off-by: Daniel Latypov <dlatypov@xxxxxxxxxx> > --- > Note: this is unchanged, just added a 3rd patch to this series. > --- > tools/testing/kunit/kunit_kernel.py | 6 +++--- > tools/testing/kunit/kunit_printer.py | 2 +- > tools/testing/kunit/run_checks.py | 2 +- > 3 files changed, 5 insertions(+), 5 deletions(-) > > diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py > index 53e90c335834..e6fc8fcb071a 100644 > --- a/tools/testing/kunit/kunit_kernel.py > +++ b/tools/testing/kunit/kunit_kernel.py > @@ -92,7 +92,7 @@ class LinuxSourceTreeOperations: > if stderr: # likely only due to build warnings > print(stderr.decode()) > > - def start(self, params: List[str], build_dir: str) -> subprocess.Popen: > + def start(self, params: List[str], build_dir: str) -> subprocess.Popen[str]: > raise RuntimeError('not implemented!') > > > @@ -112,7 +112,7 @@ class LinuxSourceTreeOperationsQemu(LinuxSourceTreeOperations): > kconfig.merge_in_entries(base_kunitconfig) > return kconfig > > - def start(self, params: List[str], build_dir: str) -> subprocess.Popen: > + def start(self, params: List[str], build_dir: str) -> subprocess.Popen[str]: > kernel_path = os.path.join(build_dir, self._kernel_path) > qemu_command = ['qemu-system-' + self._qemu_arch, > '-nodefaults', > @@ -141,7 +141,7 @@ class LinuxSourceTreeOperationsUml(LinuxSourceTreeOperations): > kconfig.merge_in_entries(base_kunitconfig) > return kconfig > > - def start(self, params: List[str], build_dir: str) -> subprocess.Popen: > + def start(self, params: List[str], build_dir: str) -> subprocess.Popen[str]: > """Runs the Linux UML binary. Must be named 'linux'.""" > linux_bin = os.path.join(build_dir, 'linux') > params.extend(['mem=1G', 'console=tty', 'kunit_shutdown=halt']) > diff --git a/tools/testing/kunit/kunit_printer.py b/tools/testing/kunit/kunit_printer.py > index 5f1cc55ecdf5..015adf87dc2c 100644 > --- a/tools/testing/kunit/kunit_printer.py > +++ b/tools/testing/kunit/kunit_printer.py > @@ -15,7 +15,7 @@ _RESET = '\033[0;0m' > class Printer: > """Wraps a file object, providing utilities for coloring output, etc.""" > > - def __init__(self, output: typing.IO): > + def __init__(self, output: typing.IO[str]): > self._output = output > self._use_color = output.isatty() > > diff --git a/tools/testing/kunit/run_checks.py b/tools/testing/kunit/run_checks.py > index 066e6f938f6d..61cece1684df 100755 > --- a/tools/testing/kunit/run_checks.py > +++ b/tools/testing/kunit/run_checks.py > @@ -37,7 +37,7 @@ def main(argv: Sequence[str]) -> None: > if argv: > raise RuntimeError('This script takes no arguments') > > - future_to_name: Dict[futures.Future, str] = {} > + future_to_name: Dict[futures.Future[None], str] = {} > executor = futures.ThreadPoolExecutor(max_workers=len(commands)) > for name, argv in commands.items(): > if name in necessary_deps and shutil.which(necessary_deps[name]) is None: > > base-commit: 2c6a96dad5797e57b4cf04101d6c8d5c7a571603 > -- > 2.40.0.rc1.284.g88254d51c5-goog >