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doc: Fix example with __next__() in PL/Python function

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Per PEP 3114, iterator.next() has been renamed to iterator.__next__(),
and one example in the documentation still used next().  This caused the
example provided to fail the function creation since Python 2 is not
supported anymore since 19252e8ec9.

Author: Erik Wienhold
Discussion: https://postgr.es/m/173209043143.2092749.13692266486972491694@wrigleys.postgresql.org
Backpatch-through: 15
This commit is contained in:
Michael Paquier
2024-11-25 09:15:41 +09:00
parent e3b249c6d8
commit 1a52069914
1 changed files with 2 additions and 2 deletions
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doc/src/sgml/plpython.sgml
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@@ -553,7 +553,7 @@ $$ LANGUAGE plpython3u;
<varlistentry> <varlistentry>
<term>Iterator (any object providing <symbol>__iter__</symbol> and <term>Iterator (any object providing <symbol>__iter__</symbol> and
<symbol>next</symbol> methods)</term> <symbol>__next__</symbol> methods)</term>
<listitem> <listitem>
<para> <para>
<programlisting> <programlisting>
@@ -569,7 +569,7 @@ AS $$
def __iter__ (self): def __iter__ (self):
return self return self
def next (self): def __next__(self):
self.ndx += 1 self.ndx += 1
if self.ndx == len(self.who): if self.ndx == len(self.who):
raise StopIteration raise StopIteration