How to Install `retry` in Python

v0.9.2 General Purpose Apache License 2.0

Easy to use retry decorator.

Install pip install retry

What is retry?

Easy to use retry decorator.

- No external dependency (stdlib only). - (Optionally) Preserve function signatures (). - Original traceback, easy to debug.

def retry(exceptions=Exception, tries=-1, delay=0, maxdelay=None, backoff=1, jitter=0, logger=logginglogger): """Return a retry decorator.

fixed if a number, random if a range tuple (min, max)

Documentation → PyPI page → Author: invl

Quick Start

Minimal example to get started with retry:

import retry

print(retry.__version__)

Installation

pip (standard)

pip install retry

Virtual environment (recommended)

python -m venv venv
source venv/bin/activate   # Windows: venv\Scripts\activate
pip install retry

pip3

pip3 install retry

conda

conda install -c conda-forge retry

Poetry

poetry add retry

Dependencies

Installing retry will also install these packages:

decorator py

Verify the Installation

After installing, confirm the package is available:

python -c "import retry; print(retry.__version__)"

If this prints a version number, installation succeeded. If you see a ModuleNotFoundError, see the errors section below.

Installation Errors

Common errors when installing retry with pip.

ModuleNotFoundError: No module named 'retry'

Cause: The package is not installed in the current Python environment.

Fix: Run pip install retry. If using a virtual environment, ensure it is activated first.

ModuleNotFoundError: No module named 'retry' (installed but still failing)

Cause: pip installed the package into a different Python than the one running your script.

Fix: Use python -m pip install retry to install into the interpreter you are running.

ImportError: cannot import name 'X' from 'retry'

Cause: The function or class does not exist in the installed version.

Fix: Check the version with pip show retry and upgrade with pip install --upgrade retry.

pip: command not found

Cause: pip is not in PATH or Python was not added to PATH during installation.

Fix: Try python -m pip install retry. On macOS/Linux try pip3.

PermissionError: [Errno 13] Permission denied

Cause: No write access to the system Python package directory.

Fix: Use a virtual environment, or add --user: pip install --user retry

SSL: CERTIFICATE_VERIFY_FAILED

Cause: pip cannot verify PyPI's SSL certificate — common behind corporate proxies.

Fix: Try: pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org retry

Recent Releases

Version	Released
`0.9.2` latest	2016-05-11
`0.9.1`	2015-07-03
`0.9.0`	2015-04-27
`0.9.0.dev83`	2015-04-26
`0.7.0`	2015-03-11

Full release history on PyPI →

Manage retry

Upgrade to latest version

pip install --upgrade retry

Install a specific version

pip install retry==0.9.2

Uninstall

pip uninstall retry

Check what is installed

pip show retry

Last updated: 2026-04-11 • Data from PyPI

How to Install retry in Python