[subprocess] preexec_fn: Change return type to object

[srittau]

The callback's return value is ignored. Use object instead of Any to indicate this per current typing best practices.

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

prefect (https://github.com/PrefectHQ/prefect)
- src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], Any] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: bool | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: bool | None = ..., encoding: str, errors: str | None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[str]
+ src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], object] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: bool | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: bool | None = ..., encoding: str, errors: str | None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[str]
- src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], Any] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: bool | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: bool | None = ..., encoding: str | None = ..., errors: str, user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[str]
+ src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], object] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: bool | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: bool | None = ..., encoding: str | None = ..., errors: str, user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[str]
- src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], Any] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., *, universal_newlines: Literal[True], startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., text: bool | None = ..., encoding: str | None = ..., errors: str | None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[str]
+ src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], object] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., *, universal_newlines: Literal[True], startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., text: bool | None = ..., encoding: str | None = ..., errors: str | None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[str]
- src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], Any] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: bool | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: Literal[True], encoding: str | None = ..., errors: str | None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[str]
+ src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], object] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: bool | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: Literal[True], encoding: str | None = ..., errors: str | None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[str]
- src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], Any] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: Literal[False] | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: Literal[False] | None = ..., encoding: None = ..., errors: None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[bytes]
+ src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], object] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: Literal[False] | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: Literal[False] | None = ..., encoding: None = ..., errors: None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[bytes]
- src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], Any] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: bool | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: bool | None = ..., encoding: str | None = ..., errors: str | None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[Any]
+ src/prefect/cli/shell.py:99: note:     def [AnyStr: (str, bytes)] __init__(self, args: str | bytes | PathLike[str] | PathLike[bytes] | Sequence[str | bytes | PathLike[str] | PathLike[bytes]], bufsize: int = ..., executable: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., stdin: int | IO[Any] | None = ..., stdout: int | IO[Any] | None = ..., stderr: int | IO[Any] | None = ..., preexec_fn: Callable[[], object] | None = ..., close_fds: bool = ..., shell: bool = ..., cwd: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., env: Mapping[bytes, str | bytes | PathLike[str] | PathLike[bytes]] | Mapping[str, str | bytes | PathLike[str] | PathLike[bytes]] | None = ..., universal_newlines: bool | None = ..., startupinfo: Any | None = ..., creationflags: int = ..., restore_signals: bool = ..., start_new_session: bool = ..., pass_fds: Collection[int] = ..., *, text: bool | None = ..., encoding: str | None = ..., errors: str | None = ..., user: str | int | None = ..., group: str | int | None = ..., extra_groups: Iterable[str | int] | None = ..., umask: int = ..., pipesize: int = ...) -> Popen[Any]