black:tldr:721bf

black: Output changes that would be made to a file or a directory without performing them (dry-run).

black

$ black --diff ${filename_or_directory}

try on your machine

The command you provided is using a tool called "black" and it has one argument, "--diff", followed by a filename or directory specified as "${filename_or_directory}".

Black is a popular code formatter for Python. It is used to automatically format Python code according to a specified style guide. It enforces a consistent and readable code style, making it easier for developers to collaborate on Python projects.

In this specific command, the "--diff" option is used to display the differences between the original unformatted code and the formatted code. It shows the changes that will be made by the black formatter without actually modifying the files. This can be useful for checking the impact of running black on your code before actually applying the changes.

The "${filename_or_directory}" is a placeholder representing the file or directory path where you want to apply the black formatter. It can be a specific file or a directory containing multiple Python files. Black will format the specified files according to the configured style guide and display the differences using the "--diff" option.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

back to the black tool