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retry decorator

Project description

retry is a decorator for isolating retrying logic, with logging intergraton.

Installation

To install _retry_, simply:

$ pip install retry

API

retry(exceptions=Exception, tries=float('inf'), delay=0, backoff=1)

various retrying logic can be achieved by combination of arguments.

Examples

from retry import retry

# Retry until succeed
@retry()
def make_trouble():
    ...

# Retry on ZeroDivisionError, fail after 3 attmpts, sleep 2 seconds per
# attmpt
@retry(ZeroDivisionError, tries=3, delay=2)
def make_trouble():
    ...

# Retry on ValueError and TypeError, sleep 1, 2, 4, 8, etc.. seconds
@retry((ValueError, TypeError), delay=1, backoff=2)
def make_trouble():
    ...

# If you enable logging, you can get warnings like 'ValueError, retrying in
# 1 seconds'
if __name__ == '__main__':
    import logging
    logging.basicConfig()
    make_trouble()

Project details


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