Fix SyntaxWarning by using a raw string in the regex pattern

[tsvikas]

Problem

The previous code emitted the following warning:

site-packages/jupyterlab_code_formatter/formatters.py:110: SyntaxWarning: invalid escape sequence '\s'

Cause

This warning occurred because Python treats \ as an escape character unless the string is marked as raw (using the r"" prefix) or the escape sequence is invalid. In this case, the intention was to pass \s and \w to the regex pattern. Although the regex received the correct pattern, the warning indicates a potential issue.

Solution

To address this, the string has been updated to use a raw string (e.g., r"run\s+\w+"). This approach

• Explicitly indicates that \ is part of the regex pattern.
• Prevents the warning.
• Makes the code more robust against new escape codes or future changes to the regex pattern.

[github-actions]

👈 Launch a Binder on branch tsvikas/jupyterlab_code_formatter/patch-1