Technology Tales

Taking control of Ruff checks on Python scripts

Published on 22^nd October 2025 Estimated Reading Time: 1 minute

Positron is becoming my tool of choice for developing Python code. Along from using a Python console like a REPL environment, it also includes Ruff for checking code compliance. One of its rules is that Python modules must be declared at the top. However, I want to use some code that checks for the present of any modules used in a script, installing those that are missing. This means that import statements appear later in a script that Ruff recommends, making me wish for a way to turn off that check since things run well anyway. The chosen solution is to create a file called pyproject.toml in the directory where my scripts are store and add the following lines in there to accomplish what I want:

[tool.ruff]
ignore = ["E402"]

Here, it helps if you open a folder in Positron, achieving the same outcome as you would in the VSCode on which the IDE is based. While I have only listed one check here, you also can have a comma-delimited list of quoted strings if you need to switch off more than one rule at once.