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bug: jsonpatch does not play nice with "/" in dict keys#165
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bug: jsonpatch does not play nice with "/" in dict keys#165
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Co-authored-by: stefankoegl <184196+stefankoegl@users.noreply.github.com> Agent-Logs-Url: https://github.com/stefankoegl/python-json-patch/sessions/d432f792-40d4-47b2-9e6b-8697b7330028
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[WIP] bug: jsonpatch does not play nice with "/" in dict keys
bug: jsonpatch does not play nice with "/" in dict keys
Mar 20, 2026
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Addresses the issue where
/characters in dictionary keys cause unexpected JSON Patch paths (e.g./~1fields~1testinstead of/fields/test). This is correct behavior per RFC 6901, but users who intend their slash-containing keys as path separators can now use the newexpand_slash_keys()utility to convert their flat dict to a nested structure before patching.Changes Made
expand_slash_keys()injsonpatch.py: converts a flat dictionary with slash-separated path-like keys into a nested dictionary, so thatmake_patchgenerates human-readable JSON Pointer paths. RaisesValueErrorif two keys produce conflicting paths (e.g.'a'and'a/b'both present).expand_slash_keyscovering simple leading-slash keys, mixed slashed/plain keys, deep nesting, no-slash passthrough,make_patchintegration, and the conflict error case.--source=jsonpointer→--source=jsonpatchintest.yaml, removed the unsupported Python 2.7 entry from the test matrix, and added Python 3.12.Testing
coverage run --source=jsonpatch tests.py)📱 Kick off Copilot coding agent tasks wherever you are with GitHub Mobile, available on iOS and Android.