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updated FAQ section on Python detection

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Wenzel Jakob 2016-06-03 14:47:54 +02:00
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@ -24,24 +24,17 @@ The Python interpreter immediately crashes when importing my module
See item 2 of the first answer. See item 2 of the first answer.
CMake doesn't detect the right Python version, or it finds mismatched interpreter and library versions CMake doesn't detect the right Python version
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The Python detection logic of CMake is flawed and can sometimes fail to find The CMake-based build system will try to automatically detect the installed
the desired Python version, or it chooses mismatched interpreter and library version of Python and link against that. When this fails, or when there are
versions. A longer discussion is available on the pybind11 issue tracker multiple versions of Python and it finds the wrong one, delete
[#f1]_, though this is ultimately not a pybind11 issue. ``CMakeCache.txt`` and then invoke CMake as follows:
To force the build system to choose a particular version, delete CMakeCache.txt
and then invoke CMake as follows:
.. code-block:: bash .. code-block:: bash
cmake -DPYTHON_EXECUTABLE:FILEPATH=<...> \ cmake -DPYTHON_EXECUTABLE:FILEPATH=<path-to-python-executable> .
-DPYTHON_LIBRARY:FILEPATH=<...> \
-DPYTHON_INCLUDE_DIR:PATH=<...> .
.. [#f1] http://github.com/pybind/pybind11/issues/99
Limitations involving reference arguments Limitations involving reference arguments
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