I am using the ansible_vault module and its construction throws an Exception when used in a textial app

[schnoberts1]

The code:

"""Trivial Textualize app to test Vault creation."""

from textual.app import App, ComposeResult
from textual.widgets import Static
from ansible import context
from ansible.module_utils.common.collections import ImmutableDict
from ansible_vault import Vault


class VaultTestApp(App):
    """Simple app that creates a Vault instance when 'a' is pressed."""

    def compose(self) -> ComposeResult:
        yield Static("Press 'a' to create a Vault instance, 'q' to quit")

    def on_key(self, event):
        """Handle key press events."""
        if event.key == "a":
            # Create a Vault instance with a dummy password
            vault = Vault("dummy_password")
            self.exit(message=f"Vault instance created: {vault}")
        elif event.key == "q":
            self.exit()


if __name__ == "__main__":
    app = VaultTestApp()
    app.run()%

The exception (when I press 'a'):

ValueError: file descriptor cannot be a negative integer (-1)

I think it's related to this in the Ansible module:

│    29 else:                                                                                                                            │
│    30 │   try:                                                                                                                         │
│    31 │   │   import curses                                                                                                            │
│ ❱  32 │   │   curses.setupterm()                                                                                                       │
│    33 │   │   if curses.tigetnum('colors') < 0:                                                                                        │
│    34 │   │   │   ANSIBLE_COLOR = False                                                                                                │
│    35 │   except ImportError:

Versions

rich==14.2.0
rich-argparse==1.7.1
textual==6.5.0
textual-dev==1.8.0
textual-serve==1.1.3

ansible==11.1.0
ansible-core==2.18.11
ansible-vault==4.1.0

I am running this on a Mac.

(.venv) (base) andy@ice systems % python --version
Python 3.14.0

[schnoberts1]

I have a workaround, I use the ansible module’s vault API but I guess this interop with curses is an issue?

Anyway, if you feel it isn’t feel free to close.

[TomJGooding]

Glad you managed to find a workaround.

I'm not familiar with any of these ansible packages, but it really isn't surprising that trying to mix Textual and curses doesn't work. curses.setupterm() presumably checks the terminal is suitable to run a curses application, which of course it won't be when there's already a terminal application running with Textual (or any other TUI).