renew

library0.5.4pypypi✓ verified 86d ago

A Python library for reproducible object serialization in a 100% Pythonic format. It provides a consistent way to represent Python objects, enabling easy reconstruction and debugging. Current version: 0.5.4. Release cadence: low, with no recent releases.

serialization

pip install renew

package ↗homepage ↗

INSTALL

IMPORT

SIG · RENEW

renew

serializationpythonv0.5.4

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

renew

✓ import renew

✗ from renew import Renew

No top-level Renew class; use the module-level function renew.renew()

rebuild

✓ from renew import rebuild

✗ import rebuild

rebuild is a module function, not a top-level package

RenewHandler

✓ from renew.handler import RenewHandler

✗ from renew import RenewHandler

RenewHandler is in the handler submodule

Basic usage: serialize an object with renew.renew() and reconstruct with rebuild().

import renew from renew import rebuild # Define a simple class class MyClass: def __init__(self, x): self.x = x def __repr__(self): return f"MyClass({self.x})" # Create an object obj = MyClass(42) # Renew the object (serialize to Python source code) renewed_code = renew.renew(obj) print(renewed_code) # Output: something like "MyClass(42)" # Rebuild from the code new_obj = rebuild(renewed_code) print(new_obj) # Output: MyClass(42)

Debug

Known issues

deprecatedLibrary is in maintenance mode; no updates since 2018. May not support newer Python versions (3.9+).

fix

Consider alternatives like dill or cloudpickle for serialization.

affects: >=0.5.4

gotcharenew.renew() only works for objects with simple __init__ signatures; complex objects (e.g., with non-trivial constructor logic) may fail or produce incorrect code.

fix

Ensure your class has a simple __init__ that directly assigns arguments to attributes. Test serialization on your objects.

affects: all

gotchaThe rebuild() function uses eval internally; it can execute arbitrary code from the serialized string. Only use on trusted data.

fix

Never rebuild untrusted serialized data. Use a sandbox or avoid using rebuild if data origin is not secure.

affects: all

Errors

Common errors & fixes

ImportError: No module named 'renew'

Library not installed or installed with different name.

fix

Run 'pip install renew' in your environment.

AttributeError: module 'renew' has no attribute 'renew'

Import statement used 'from renew import renew' but the module is imported as 'import renew'.

fix

Correct import: 'import renew' then use 'renew.renew()'.

TypeError: can't pickle ... objects

renew works via __init__ signature analysis; objects with complex constructors or non-standard attributes cannot be serialized.

fix

Simplify the object's __init__ to directly assign all attributes from arguments. For complex objects, consider using dill or pickle.

Upgrade

Version history

0.5.4latest on PyPI · released Jun 3, 2019

Audit

Dependencies

sixrequiredPython 2/3 compatibility

Agent activity

10 hits · last 30 days

node

Resources

packagehttps://pypi.org/project/renew/ ↗

homepagehttps://gitlab.com/kamichal/renew ↗