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Drop support for Python 2.3

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There is no specific reason for this right now, but keeping support for
old Python versions around indefinitely increases the maintenance
burden.  The oldest supported Python version is now Python 2.4, which is
still shipped in RHEL/CentOS 5 by default.

In configure, add a check for the required Python version and give a
friendly error message for an old version, instead of relying on an
obscure build error later on.
This commit is contained in:
Peter Eisentraut
2017-02-21 09:27:02 -05:00
parent 0bf41dd190
commit 04aad40186
9 changed files with 27 additions and 45 deletions
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24
src/pl/plpython/expected/plpython_ereport.out
View File

@ -94,26 +94,22 @@ kwargs = {
"column_name": _column_name, "datatype_name": _datatype_name,
"constraint_name": _constraint_name
}
# ignore None values - should work on Python2.3
dict = {}
for k in kwargs:
if kwargs[k] is not None:
dict[k] = kwargs[k]
plpy.error(**dict)
# ignore None values
plpy.error(**dict((k, v) for k, v in iter(kwargs.items()) if v))
$$ LANGUAGE plpythonu;
SELECT raise_exception('hello', 'world');
ERROR: plpy.Error: hello
DETAIL: world
CONTEXT: Traceback (most recent call last):
PL/Python function "raise_exception", line 13, in <module>
plpy.error(**dict)
PL/Python function "raise_exception", line 9, in <module>
plpy.error(**dict((k, v) for k, v in iter(kwargs.items()) if v))
PL/Python function "raise_exception"
SELECT raise_exception('message text', 'detail text', _sqlstate => 'YY333');
ERROR: plpy.Error: message text
DETAIL: detail text
CONTEXT: Traceback (most recent call last):
PL/Python function "raise_exception", line 13, in <module>
plpy.error(**dict)
PL/Python function "raise_exception", line 9, in <module>
plpy.error(**dict((k, v) for k, v in iter(kwargs.items()) if v))
PL/Python function "raise_exception"
SELECT raise_exception(_message => 'message text',
_detail => 'detail text',
@ -128,8 +124,8 @@ ERROR: plpy.Error: message text
DETAIL: detail text
HINT: hint text
CONTEXT: Traceback (most recent call last):
PL/Python function "raise_exception", line 13, in <module>
plpy.error(**dict)
PL/Python function "raise_exception", line 9, in <module>
plpy.error(**dict((k, v) for k, v in iter(kwargs.items()) if v))
PL/Python function "raise_exception"
SELECT raise_exception(_message => 'message text',
_hint => 'hint text',
@ -139,8 +135,8 @@ SELECT raise_exception(_message => 'message text',
ERROR: plpy.Error: message text
HINT: hint text
CONTEXT: Traceback (most recent call last):
PL/Python function "raise_exception", line 13, in <module>
plpy.error(**dict)
PL/Python function "raise_exception", line 9, in <module>
plpy.error(**dict((k, v) for k, v in iter(kwargs.items()) if v))
PL/Python function "raise_exception"
DO $$
DECLARE

10
src/pl/plpython/plpy_typeio.c
View File

@ -521,15 +521,9 @@ PLy_input_datum_func2(PLyDatumToOb *arg, MemoryContext arg_mcxt, Oid typeOid, He
static PyObject *
PLyBool_FromBool(PLyDatumToOb *arg, Datum d)
{
/*
* We would like to use Py_RETURN_TRUE and Py_RETURN_FALSE here for
* generating SQL from trigger functions, but those are only supported in
* Python >= 2.4, and we support older versions.
* http://docs.python.org/api/boolObjects.html
*/
if (DatumGetBool(d))
return PyBool_FromLong(1);
return PyBool_FromLong(0);
Py_RETURN_TRUE;
Py_RETURN_FALSE;
}
static PyObject *

8
src/pl/plpython/sql/plpython_ereport.sql
View File

@ -55,12 +55,8 @@ kwargs = {
"column_name": _column_name, "datatype_name": _datatype_name,
"constraint_name": _constraint_name
}
# ignore None values - should work on Python2.3
dict = {}
for k in kwargs:
if kwargs[k] is not None:
dict[k] = kwargs[k]
plpy.error(**dict)
# ignore None values
plpy.error(**dict((k, v) for k, v in iter(kwargs.items()) if v))
$$ LANGUAGE plpythonu;
SELECT raise_exception('hello', 'world');