redo
Utilities to retry Python callables.
Decision gist · record as of 2026-08-14
Yes. Redo is a mature, dependency-free utility with active maintenance, no known vulnerabilities, and broad Python version support. It solves a common problem (retrying transient failures) with multiple clean integration patterns. The MPL-2.0 copyleft license is permissive for most use cases. Install it if you need retry logic and prefer a focused, lightweight tool over building your own.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Low install friction with no runtime dependencies.
- Actively maintained as of 2026-08-04 with a recent release in 2024-07-17, supporting Python 3.8 through 3.12.
License · maintenance · safety
MPL-2.0 (copyleft) — Licensed under MPL-2.0 (copyleft). You must disclose source code modifications and distribute under the same license if you modify and redistribute the package, but can use it in proprietary applications without disclosing your own code.
last release 2024-07-17 (758 days) · last repo commit 2026-08-04 · 101 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 1,005,604 downloads/mo, #4,528 on PyPI
Alternatives
Verify before relying
pip install redo
from redo import retry
def unstable_action():
# raises Exception on failure
pass
result = retry(unstable_action, attempts=5, sleeptime=1, jitter=0)- Whether the package is actively maintained beyond the last commit date of 2026-08-04
- Performance characteristics when handling high-frequency retries or very large numbers of attempts
What it is and what it does
Redo is a retry utility library that wraps Python functions to automatically retry them on failure with configurable backoff strategies. It offers multiple integration points: plain functions (retry, retry_async), decorators (retriable, retriable_async), and a context manager (retrying) so you can choose the pattern that fits your codebase. Each retry attempt can be separated by a sleep interval that grows exponentially with optional random jitter to avoid thundering herd problems.
The package handles both synchronous and asynchronous callables, lets you specify which exceptions trigger a retry versus which should fail immediately, and supports optional cleanup functions between attempts. It has no runtime dependencies and supports Python 3.8 through 3.12, making it lightweight to add to existing projects.
Use it for
- Wrap unreliable network requests with automatic retry and exponential backoff to handle transient failures gracefully.
- Decorate database operations that may fail due to temporary locks or connection issues, with configurable sleep between attempts.
- Use as a context manager around a block of code that needs retry logic without modifying the function definition itself.
- Retry async/await functions in concurrent applications with sleep callbacks tuned to your workload.
- Add retry capability to CLI tools or scripts that interact with flaky external services or resources.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Redo is a mature, dependency-free utility with active maintenance, no known vulnerabilities, and broad Python version support. It solves a common problem (retrying transient failures) with multiple clean integration patterns. The MPL-2.0 copyleft license is permissive for most use cases. Install it if you need retry logic and prefer a focused, lightweight tool over building your own.
Install
redo on PyPI
Before you install
Low install friction with no runtime dependencies. Actively maintained as of 2026-08-04 with a recent release in 2024-07-17, supporting Python 3.8 through 3.12.
License in practice
Licensed under MPL-2.0 (copyleft). You must disclose source code modifications and distribute under the same license if you modify and redistribute the package, but can use it in proprietary applications without disclosing your own code.
Quickstart
pip install redo
from redo import retry
def unstable_action():
# raises Exception on failure
pass
result = retry(unstable_action, attempts=5, sleeptime=1, jitter=0)Verify before relying
- Whether the package is actively maintained beyond the last commit date of 2026-08-04
- Performance characteristics when handling high-frequency retries or very large numbers of attempts
Package facts
| License | MPL-2.0 copyleft |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 758 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 1,005,604 / month, #4,528 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9 |
Evidence: redo-3.0.0-py2.py3-none-any.whl
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See also reretry · retry · retry2 · retrying · timeout-sampler · python-retry · python-backoff · backoff · waiter · mo-kwargs