Skip to main content

Safety belt for your Python distributed services.

Project description

Safepy (rhymes with safety) is a latency and fault tolerance library for Python 3.5 (or greater) inspired by Hystrix, Cloud Design Patterns, AWS Architecture Blog and many others.

How to use the library

You can either use the mechanisms as decorators:

from safety import retry

class ProfileService(object):
    @retry(attempts=3, base_delay=1)
    async def get_profile(self, username):

Or to dynamically recreate protected methods:

from safety import retry

class ProfileService(object):
    def __init__(self):
        self.get_profile = retry(attempts=3, base_delay=1)(

    async def get_profile(self, username):


from safepy import retry

class ServiceA(object):
    @retry(attempts=3, base_delay=1)
    async def call():


  • The default retry is an alias for retry_with_jitter_backoff, a retry mechanism which uses jitter backoff. For exponential backoff use retry_with_exponential_backoff.

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

safepy-0.1.0a0.tar.gz (5.9 kB view hashes)

Uploaded source

Built Distribution

safepy-0.1.0a0-py3-none-any.whl (9.9 kB view hashes)

Uploaded py3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page