Overdue

Conveniently stop Python code from running when it is taking too long on Python 3.10+. Ships with type annotations and depends at runtime on nothing but Python itself.

For older Pythons, consider stopit.

Installation

$ pip install overdue or whatever is the equivalent in your favorite package manager.

Using a context manager

Without exceptions:

from overdue import timeout_set_to

with timeout_set_to(0.25) as timeout:
    # Slow code
if timeout.triggered:
    # Handle timeout

With an exception:

from datetime import timedelta
from overdue import timeout_set_to, TaskAbortedError

try:
    with timeout_set_to(timedelta(milliseconds=250), raise_exception=True):
        # Slow code
except TaskAbortedError:
    # Handle timeout

Using a decorator

With an exception:

from overdue import timecapped_to, TaskAbortedError

@timecapped_to(0.25)
def my_slow_function() -> None:
    # Slow code

try:
    my_slow_function()
except TaskAbortedError:
    # Handle timeout

Without exceptions:

from overdue import in_time_or_none

@in_time_or_none(0.25)
def my_slow_function() -> int:
    # Slow code
    return 7

if (result := my_slow_function()) is None:
    # Handle timeout