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core: add info about Python 3 and strings in release notes

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Sébastien Helleu 2019-10-13 08:18:38 +02:00
parent 899550ca94
commit 577a932201
1 changed files with 20 additions and 0 deletions
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ReleaseNotes.adoc
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@ -56,6 +56,26 @@ plugin, using this cmake option:
cmake .. -DENABLE_PHP=OFF
----
[[v2.7_python3_callbacks_strings]]
=== Strings received in Python 3 callbacks
The strings sent to script callbacks in Python 3 are now automatically converted
according to the content:
* if the string is valid UTF-8, it is sent as `str` (legacy behavior)
* if the string is not valid UTF-8, it is sent as `bytes` (new).
In some cases only, the string may not be valid UTF-8, so it is received as
`bytes` in the callback, which must take care of that.
For more information, see the WeeChat scripting guide: chapter about strings
received in callbacks (see also issue #1389).
Note: there are no changes for Python 2 (which is now deprecated and should not
be used any more), the strings sent to callbacks are always of type `str`, and
may contain invalid UTF-8 data, in the cases mentioned in the WeeChat scripting
guide.
[[v2.7_irc_message_decoding]]
=== IRC message decoding/encoding