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Python black formatter sys.path8/15/2023 ![]() Toss_result()So work fine,think i change to Blue because like single quotes better. this is perhaps my greatest dislike.īlue will only use single quotes or convert to it code use double quotes. pip install blue Quote:it changes most of the quotes from single to double on string literals. A full report on the ROS 2 codebase to see if and how it can be adopted as a ROS 2 linter would be valuable to improve chances of adoption (in addition to the flake8 plugins currently in use).(Oct-17-2022, 10:28 PM)Skaperen Wrote: how did you install this? it is not in the Ubuntu 20.04 repository and i still have not gotten pip to quit using the wrong directoryYou most fix this it's just the normal way. But when I run python -m black output.py -check, output is like this /usr/bin/python: No module named black. It can help ensure that your code adheres to PEP 8 style guide, making it easier for others to read and understand. I have installed black Python code formatter using pip install black in my virtual environment. It is however a young and quilckly evolving tool. The Python Formatter helps you to format your Python code to make it more readable and aesthetically pleasing. Run pip uninstall black to delete black in current activated conda environment In Settings.json, set '': 'black', Turn to. Some other parts of black are also being made more flexible to ease adoption, and could be leveraged to match more closely the ROS 2 style, for example the magic trailing comma.īlack is a great tool definitely filling a need and I definitely will use it on some projects. Description: Black is the uncompromising Python code formatter. 1 Answer Sorted by: 5 You don't need to specify the blackpath in Settings.json. + 1 path directory / namepattern.format(counter) if not path.exists(): return path def. It could also be argued that a clean break can be made and switching to double quotes would allow auto formatting and improve consistency with the other languages of the ROS 2 core (C and C++ both using double quotes). You can inspect Pythons import path by printing sys.path. ![]() This is not exactly the same as saying “use single quotes” as black will just not reformat string quotes at all, whichever type of quote is used, but this could be a compromise to preserve backward compatibility. Also I think (if at all possible) going for an automated reformating that agrees with the set of flake8 plugins currently used by ROS 2 would allow backports making flake8 happy and more consistent style moving forward.Īn example for the quotes issue, black offers a way to avoid reformatting quotes:ĭon’t normalize string quotes or prefixes. Regarding the “previous distros impact” question, ROS 2 linters evolve from one distro to the next and it’s not uncommon that code from a distro doesn’t pass the linter tests of another distro ( waving at uncrustify). The quotes issue was mentioned but there are likely multiple others that would need to be made visible before a decision can be made. The Python community rallied behind PEP 8 as the guide for. When a module (a module is a python file) is imported within a Python file, the interpreter first searches for the specified module among its built-in modules. It contains a list of directories that the interpreter will search in for the required module. A way to run that automatically on each PR that gets opened would be very convenient too.Īs far as the style is concerned, it looks like a precise list of the kind of resulting changes to the ROS 2 code base would be useful to see what the extent of the difference with the ROS 2 style is. The Go programming language has gofmt (i.e., go format) baked in as a core tool in the language. sys.path is a built-in variable within the sys module. Thanks for starting this thread and ament_black! Having a way to do automatic formatting in Python would be tremendous fixing style is always cumbersome and is a significant component of PRs iteration.
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