constantdict

library2025.3pypypi✓ verified 85d ago

An immutable dict class providing a hashable, frozen dictionary that can be used as dict keys or in sets. Current version 2025.3, works with Python >=3.7. Released irregularly.

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pip install constantdict

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INSTALL

IMPORT

SIG · CONSTANTDICT

constantdict

storagepythonv2025.3

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.

constantdict

✓ from constantdict import constantdict

✗ import constantdict

constantdict is a function, not a module; you need to import the function directly.

Create an immutable dict and demonstrate hashability.

from constantdict import constantdict d = constantdict({'a': 1, 'b': 2}) print(d['a']) # 1 print(hash(d)) # hashable

Debug

Known issues

gotchaconstantdict() expects a dict-like argument; passing multiple positional arguments raises TypeError.

fix

Use constantdict({'key': 'value'}) not constantdict('key', 'value').

affects: all

gotchaconstantdict is not an exact copy of dict; items() returns a tuple of tuples, not a view object.

fix

Access items with .items() which returns a tuple; if you need a dict_items view, convert: items = d.items() works as tuple, but not .viewitems().

affects: all

Errors

Common errors & fixes

AttributeError: module 'constantdict' has no attribute 'constantdict'

Importing the module instead of the function.

fix

Use 'from constantdict import constantdict'.

TypeError: constantdict() takes 1 positional argument but 2 were given

Passing multiple arguments to constantdict().

fix

Pass a single dict or iterable of pairs: constantdict({'a':1}) or constantdict([('a',1)]).

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Version history

2025.3latest on PyPI · released Jul 21, 2025

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Dependencies

No dependency data recorded yet.

Agent activity

30 hits · last 30 days

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Resources

githubhttps://github.com/matthiasdiener/constantdict ↗

homepagehttps://github.com/matthiasdiener/constantdict ↗