autojoin_on_invite.py 0.10: use raw string for INVITE regex to fix SyntaxWarning

[cnsunyour]

Script info

• Script name: autojoin_on_invite.py

• Version: 0.10

• Requirements: none (WeeChat API and Python standard library only)

• Min WeeChat version: 0.3.0

• Script tags: irc

Description

Use a raw string for SearchStr so that \@ is not treated as an invalid
escape sequence. Since Python 3.12, invalid escape sequences in plain string
literals trigger a SyntaxWarning: invalid escape sequence '\@' every time
the script is loaded, and they are planned to become a syntax error in a
future Python release.

A raw string produces exactly the same string content and regex behavior on
every Python version, so this is a warning fix only, with no functional change.

Checklist (script update)

• Author has been contacted
• Single commit, single file added
• Commit message format: script_name.py X.Y: …
• Script version and Changelog have been updated
• For Python script: works with Python 3 (Python 2 support is optional)
• Score 100 / 100 displayed by weechat-script-lint