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Explain: conduit feature only covers from-Python-to-C++ conversions #5740

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Merged
merged 1 commit into from
Jun 20, 2025
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Explain: conduit feature only covers from-Python-to-C++ conversions #5740

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5 changes: 5 additions & 0 deletions include/pybind11/conduit/pybind11_conduit_v1.h
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,11 @@

* including pybind11 versions with different PYBIND11_INTERNALS_VERSION's.

* NOTE: The conduit feature
only covers from-Python-to-C++ conversions, it
does not cover from-C++-to-Python conversions.
(For the latter, a different feature would have to be added.)

The naming of the feature is a bit misleading:

* The feature is in no way tied to pybind11 internals.
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4 changes: 2 additions & 2 deletions tests/test_cpp_conduit.py
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Expand Up @@ -151,8 +151,8 @@ def test_exo_planet_c_api_premium_traveler(premium_traveler_type):

def test_home_planet_wrap_very_lonely_traveler():
# This does not exercise the cpp_conduit feature, but is here to
# demonstrate that the cpp_conduit feature does not solve all
# cross-extension interoperability issues.
# demonstrate that the cpp_conduit feature does not solve
# cross-extension base-and-derived class interoperability issues.
# Here is the proof that the following works for extensions with
# matching `PYBIND11_INTERNALS_ID`s:
# test_cpp_conduit.cpp:
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