An immutable dictionary class for Python, implemented as a thin layer around Python's builtin dict class. It is often faster than other immutable dictionary implementations.
Install this package with:
$ pip install constantdict
Usage example:
from constantdict import constantdict
cd = constantdict({1: 2})
# constantdicts compare equal to dicts with the same items
assert cd == {1: 2}
# constantdicts are hashable, and their hashes are cached
print(hash(cd), cd)
# Attempting to modify the constantdict raises an AttributeError
try:
# Similar for pop(), popitem(), clear(), __ior__(), del, and setdefault()
cd[4] = 12
except AttributeError:
passPlease also see the documentation,
as well as the examples in the examples/ directory.
MIT License.