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Gwenaël Samain
cython
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57ac5f87
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57ac5f87
authored
Apr 11, 2015
by
Stefan Behnel
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update pypy integration guide
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853553c7
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docs/src/userguide/pypy.rst
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docs/src/userguide/pypy.rst
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57ac5f87
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@@ -2,7 +2,7 @@ Porting Cython code to PyPy
...
@@ -2,7 +2,7 @@ Porting Cython code to PyPy
============================
============================
Since version 0.17, Cython has basic support for cpyext, the layer in
Since version 0.17, Cython has basic support for cpyext, the layer in
`PyPy <http://pypy.org>`_ that emulates CPython's C-API. This is
`PyPy <http://pypy.org
/
>`_ that emulates CPython's C-API. This is
achieved by making the generated C code adapt at C compile time, so
achieved by making the generated C code adapt at C compile time, so
the generated code will compile in both CPython and PyPy unchanged.
the generated code will compile in both CPython and PyPy unchanged.
...
@@ -110,6 +110,17 @@ protocols for object operations. Cython will map them to an appropriate
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@@ -110,6 +110,17 @@ protocols for object operations. Cython will map them to an appropriate
usage of the C-API in both CPython and cpyext.
usage of the C-API in both CPython and cpyext.
GIL handling
------------
Currently, the GIL handling function :c:func:`PyGILState_Ensure` is not
re-entrant in PyPy and deadlocks when called twice. This means that
code that tries to acquire the GIL "just in case", because it might be
called with or without the GIL, will not work as expected in PyPy.
See `PyGILState_Ensure should not deadlock if GIL already held
<https://bitbucket.org/pypy/pypy/issue/1778>`_.
Efficiency
Efficiency
-----------
-----------
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@@ -144,6 +155,9 @@ Known problems
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@@ -144,6 +155,9 @@ Known problems
* Docstrings of special methods are not propagated to Python space.
* Docstrings of special methods are not propagated to Python space.
* The Python 3.x adaptations in pypy3 only slowly start to include the
C-API, so more incompatibilities can be expected there.
Bugs and crashes
Bugs and crashes
-----------------
-----------------
...
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