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Keep the original error when join() rejects a suffix - #117
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stefankoegl merged 1 commit intoNov 11, 2026
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join() turns any failure into JsonPointerException("Invalid suffix").
Raise it "from" the original exception so the underlying cause (e.g. a
TypeError for a non-iterable suffix) shows up in tracebacks and is
available as __cause__.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PewzpjhRBV84QNbKy9H564
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Stacked on #114. Once that merges, retarget this to
master.JsonPointer.join()turns any failure intoJsonPointerException("Invalid suffix")and drops the original error. It now raisesfrom e, so the cause (for example aTypeErrorfor a non-iterable suffix) shows up in tracebacks and is available as__cause__. The exception type and message are unchanged.A new test checks
__cause__.python -m unittestand flake8 pass.Generated by Claude Code