simvx.core.process_node

ProcessNode — Node wrapping subprocess.Popen with non-blocking I/O.

Supports both pipe-based (default) and PTY-based subprocess management. PTY mode is required for interactive terminal applications like bash, nano, vim.

Module Contents

Classes

ProcessNode

Node that manages a subprocess with non-blocking I/O.

Data

log

API

simvx.core.process_node.log

‘getLogger(…)’

class simvx.core.process_node.ProcessNode(command: str = '', *, use_pty: bool = False, env: dict[str, str] | None = None, **kwargs)

Bases: simvx.core.node.Node

Node that manages a subprocess with non-blocking I/O.

Emits stdout_data(str) and stderr_data(str) as output arrives, and process_exited(int) when the child terminates. The process is polled each frame in process(dt) with zero-timeout selector calls so the game loop is never blocked.

For interactive terminal applications, set use_pty=True to allocate a pseudo-terminal. In PTY mode, stdout and stderr are merged.

Initialization

auto_start

‘Property(…)’

command

‘Property(…)’

ready()

start(command: str | None = None)

Launch the subprocess. Replaces any already-running process.

resize(cols: int, rows: int)

Set the PTY terminal size. Only works in PTY mode.

stop()

Terminate the subprocess, escalating to kill if needed.

write(data: str)

Write data to the subprocess stdin (or PTY master).

process(dt: float)

exit_tree()

property running: bool

property exit_code: int | None

strict_errors: ClassVar[bool]

True

script_error_raised

‘Signal(…)’

classmethod __init_subclass__(**kwargs)

property name: str

property process_mode: simvx.core.descriptors.ProcessMode

reset_error() → None

add_child(node: simvx.core.node.Node) → simvx.core.node.Node

remove_child(node: simvx.core.node.Node)

reparent(new_parent: simvx.core.node.Node)

get_node(path: str) → simvx.core.node.Node

find_child(name: str, recursive: bool = False) → simvx.core.node.Node | None

find(node_type: type, recursive: bool = True) → simvx.core.node.Node | None

find_all(node_type: type, recursive: bool = True) → list

property path: str

add_to_group(group: str)

remove_from_group(group: str)

is_in_group(group: str) → bool

enter_tree() → None

physics_process(dt: float) → None

draw(renderer) → None

input_event(event: simvx.core.events.InputEvent) → None

input(event: simvx.core.events.TreeInputEvent) → None

unhandled_input(event: simvx.core.events.TreeInputEvent) → None

start_coroutine(gen: simvx.core.descriptors.Coroutine) → simvx.core.descriptors.CoroutineHandle

stop_coroutine(gen_or_handle)

clear_children()

destroy()

property app

property tree: simvx.core.scene_tree.SceneTree

get_tree() → simvx.core.scene_tree.SceneTree

__getitem__(key: str)

classmethod get_properties() → dict[str, simvx.core.descriptors.Property]

__repr__()