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A tool to handle merging of nested data structures in Python.
deepmerge is available on pypi <https://pypi.org/project/deepmerge/>
_:
.. code-block:: bash
pip install deepmerge
Generic Strategy
.. code-block:: python
from deepmerge import always_merger
base = {"foo": ["bar"]}
next = {"foo": ["baz"]}
expected_result = {'foo': ['bar', 'baz']}
result = always_merger.merge(base, next)
assert expected_result == result
Custom Strategy
.. code-block:: python
from deepmerge import Merger
my_merger = Merger(
# pass in a list of tuple, with the
# strategies you are looking to apply
# to each type.
[
(list, ["append"]),
(dict, ["merge"]),
(set, ["union"])
],
# next, choose the fallback strategies,
# applied to all other types:
["override"],
# finally, choose the strategies in
# the case where the types conflict:
["override"]
)
base = {"foo": ["bar"]}
next = {"bar": "baz"}
my_merger.merge(base, next)
assert base == {"foo": ["bar"], "bar": "baz"}
You can also pass in your own merge functions, instead of a string.
For more information, see the docs <https://deepmerge.readthedocs.io/en/latest/>
_
deepmerge is supported on Python 3.8+.
For older Python versions the last supported version of deepmerge is listed below:
FAQs
A toolset for deeply merging Python dictionaries.
We found that deepmerge demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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