jurigged
Live update of Python functions
Decision gist · record as of 2026-08-14
Yes, if you do interactive or iterative Python development and want to avoid restart cycles. The low install friction and permissive license make it a low-risk addition. However, be aware that maintenance is aging (last release 458 days ago) and hot-patching has known limitations: running functions keep old code, decorated functions may not patch reliably, and class initializers cannot be safely changed on existing instances. Best suited for development workflows, not production hot-patching.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python >= 3.9.
- Functions already running will continue with old code; only subsequent calls use the patched version.
- Low install friction with a pure-Python wheel and four runtime dependencies.
License · maintenance · safety
MIT (permissive) — MIT license permits commercial and private use with minimal restrictions, making it safe to adopt in most projects.
last release 2025-05-13 (458 days) · last repo commit 2025-05-13 · 1,642 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 569,761 downloads/mo, #5,958 on PyPI
Alternatives
Verify before relying
pip install jurigged
jurigged your_script.py
# Then edit functions in your_script.py and save; changes are hot-patched automatically.
# Or use programmatically:
import jurigged
jurigged.watch()- Behavior when hot-patching decorated functions or closures (description notes this may not work reliably).
- Performance impact of watching and patching on long-running processes.
- Compatibility with async functions and generators that are already executing.
What it is and what it does
Jurigged is a live code reloader for Python that watches your source files and hot-patches running functions when you save changes. Instead of restarting your script to test a modification, you edit a function, save the file, and Jurigged automatically updates all references to that function in the running process—useful for iterative development, debugging, and interactive exploration.
It works by intercepting function definitions and rewriting code pointers so existing instances adopt the new behavior. It includes a command-line interface (run `jurigged your_script.py` instead of `python your_script.py`) and an optional develoop feature that loops a specific function, re-running it each time you edit and save. You can also call `jurigged.watch()` programmatically in a Jupyter or IPython session as an alternative to `%autoreload`. The package depends on watchdog for file monitoring, blessed for terminal UI, codefind for locating functions, and ovld for method dispatch.
Use it for
- Iterative function development: edit a function, save, and see the result immediately without restarting a long-running data pipeline.
- Interactive debugging: use the develoop loop to repeatedly test a function while editing its implementation.
- Jupyter/IPython workflows: call jurigged.watch() to auto-reload modules, similar to %autoreload but with finer control.
- Live REPL: run `jurigged` with no arguments to start an interactive session where code changes are hot-patched.
- Mocking and testing: use jurigged.make_recoder() to programmatically patch functions for testing without modifying source files.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you do interactive or iterative Python development and want to avoid restart cycles.
The low install friction and permissive license make it a low-risk addition. However, be aware that maintenance is aging (last release 458 days ago) and hot-patching has known limitations: running functions keep old code, decorated functions may not patch reliably, and class initializers cannot be safely changed on existing instances. Best suited for development workflows, not production hot-patching.
Install
jurigged on PyPI
Before you install
Low install friction with a pure-Python wheel and four runtime dependencies. Maintenance status is aging—last release was 458 days ago, though the repository remains active with 1642 stars and no archived status.
Requires Python >= 3.9. Functions already running will continue with old code; only subsequent calls use the patched version.
License in practice
MIT license permits commercial and private use with minimal restrictions, making it safe to adopt in most projects.
Quickstart
pip install jurigged
jurigged your_script.py
# Then edit functions in your_script.py and save; changes are hot-patched automatically.
# Or use programmatically:
import jurigged
jurigged.watch()Verify before relying
- Behavior when hot-patching decorated functions or closures (description notes this may not work reliably).
- Performance impact of watching and patching on long-running processes.
- Compatibility with async functions and generators that are already executing.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 4 packagesblessedcodefindovldwatchdog |
| Maintenance | Aging 458 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 569,761 / month, #5,958 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
Evidence: jurigged-0.6.1-py3-none-any.whl
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See also codefind · livereload · watchgod · sphinx-autobuild · jupyter-ui-poll · pytest-hot-reloading · watchfiles · streamlit-autorefresh · django-browser-reload · hupper