core: 2024.2.1: SyntaxWarning: invalid escape sequence '\.'

The problem

After update to 2024.2.* there is a repeated warning in the log:

Logger: py.warnings
Source: helpers/template.py:586
First occurred: 15:55:51 (4 occurrences)
Last logged: 15:56:15

<unknown>:1: SyntaxWarning: invalid escape sequence '\.'

Is there any way to find the cause of the warning?

What version of Home Assistant Core has the issue?

2024.2.1

What was the last working version of Home Assistant Core?

2024.1.6

What type of installation are you running?

Home Assistant OS

Integration causing the issue

No response

Link to integration documentation on our website

No response

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

About this issue

Original URL
State: open
Created 5 months ago
Comments: 15 (8 by maintainers)

Most upvoted comments

Nevertheless the problem is how the HA code handles strings. Other places offer this solution is You can also solve this by changing the string to a raw string, by adding a r prefix

avbor on Feb 13, 2024