null

library0.6.1pypypiunverified

Implements the null object pattern in Python, providing a `Null` singleton that absorbs method calls and attribute accesses without raising errors. Current version 0.6.1. Release cadence is low, last updated in 2020.

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pip install null

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INSTALL

IMPORT

SIG · NULL

null

devopspythonv0.6.1

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.

Null

✓ from null import Null

✗ from null import Null

Create a null object and check if a value is null.

from null import Null, has_value null = Null() print(null.some_attr) # prints nothing, no error print(has_value(null)) # False print(null == Null) # True

Debug

Known issues

gotchaUsing `Null()` returns the same singleton instance; comparisons with `==` work but `is` should be used for identity.

fix

Use `obj is Null` to check for null identity.

affects: all

gotchaThe library does not handle pickling; `Null` objects cannot be pickled directly.

fix

Implement custom serialization or avoid pickling.

affects: all

Upgrade

Version history

0.6.1latest on PyPI · released Mar 5, 2013

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Dependencies

No dependency data recorded yet.

Agent activity

44 hits · last 30 days

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Amazon

OpenAI (training)

Resources

homepagehttps://bitbucket.org/ambv/null ↗