dict8 0.0.1

features

• No boilerplate: just a, b, path and some code.

• Enables you to define a specific merge behavior for every part of the tree.

• Merge into datclasses or attrs.

internal

The default machinery converts all input data to a Mapper. If a and b are mappable, the new, common and old values are taken to a custom function to decide upon the value precedence. Returning py:obj:missing will omit this key from the intermediate result. The chosen mapper will decide how to incorporate the latter.

example

import dict8


@dict8.ion
def merge(a, b, path, /, **kv):
    try:
        # try descent into sub mappings
        return merge(
            a,
            b,
            path,
            **kv,
        )
    except UnMappable:
        # take b else a
        return b if b not dict8.missing else a