Thread: pgsql: Prepare for Python "Limited API" in PL/Python
Prepare for Python "Limited API" in PL/Python Using the Python Limited API would allow building PL/Python against any Python 3.x version and using another Python 3.x version at run time. This commit does not activate that, but it prepares the code to only use APIs supported by the Limited API. Implementation details: - Convert static types to heap types (https://docs.python.org/3/howto/isolating-extensions.html#heap-types). - Replace PyRun_String() with component functions. - Replace PyList_SET_ITEM() with PyList_SetItem(). This was previously committed as c47e8df815c and then reverted because it wasn't working under Python older than 3.8. That has been fixed in this version. There was a Python API change/bugfix between 3.7 and 3.8 that directly affects this patch. The relevant commit is <https://github.com/python/cpython/commit/364f0b0f19c>. The workarounds described there have been applied in this patch, and it has been confirmed to work with Python 3.6 and 3.7. Reviewed-by: Jakob Egger <jakob@eggerapps.at> Discussion: https://www.postgresql.org/message-id/flat/ee410de1-1e0b-4770-b125-eeefd4726a24@eisentraut.org Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/72a3d0462b9a7f6265267950668af0c0246e7c01 Modified Files -------------- src/pl/plpython/plpy_cursorobject.c | 84 +++++++++++++++++++-------- src/pl/plpython/plpy_planobject.c | 70 +++++++++++++++------- src/pl/plpython/plpy_procedure.c | 5 +- src/pl/plpython/plpy_resultobject.c | 109 ++++++++++++++++++++++------------- src/pl/plpython/plpy_subxactobject.c | 46 +++++++++------ src/pl/plpython/plpy_typeio.c | 6 +- 6 files changed, 213 insertions(+), 107 deletions(-)