https://github.com/pomponchik/cantok

Implementation of the "Cancellation Token" pattern
https://github.com/pomponchik/cantok

cancellationtoken threading threading-synchronization

Last synced: 14 days ago
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Implementation of the "Cancellation Token" pattern

• Host: GitHub
• URL: https://github.com/pomponchik/cantok
• Owner: pomponchik
• License: mit
• Created: 2023-09-18T19:46:50.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2024-08-27T11:11:40.000Z (3 months ago)
• Last Synced: 2024-08-28T11:45:55.856Z (3 months ago)
• Topics: cancellationtoken, threading, threading-synchronization
• Language: Python
• Homepage: http://cantok.readthedocs.io/
• Size: 1.19 MB
• Stars: 99
• Watchers: 3
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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Cancellation Token is a pattern that allows us to refuse to continue calculations that we no longer need. It is implemented out of the box in many programming languages, for example in [C#](https://learn.microsoft.com/en-us/dotnet/api/system.threading.cancellationtoken) and in [Go](https://pkg.go.dev/context). However, there was still no sane implementation in Python, until the [cantok](https://github.com/pomponchik/cantok) library appeared.

## Quick start

Install [it](https://pypi.org/project/cantok/):

```bash

pip install cantok

```

And use:

```python

from random import randint

from cantok import ConditionToken, CounterToken, TimeoutToken

token = ConditionToken(lambda: randint(1, 100_000) == 1984) + CounterToken(400_000, direct=False) + TimeoutToken(1)

counter = 0

while token:

  counter += 1

print(counter)

```

Read more in the [documentation](https://cantok.readthedocs.io/en/latest/)!